Revolutionizing Poultry Nutrition: Microencapsulation of Phytobiotic-Probiotic Blends as a Sustainable Alternative to Antibiotics

Revolutionizing Poultry Nutrition: Microencapsulation of Phytobiotic-Probiotic Blends as a Sustainable Alternative to Antibiotics | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Revolutionizing Poultry Nutrition: Microencapsulation of Phytobiotic-Probiotic Blends as a Sustainable Alternative to Antibiotics Ahmed E. A. Mostafa This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6881763/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Antibiotic resistance poses a global challenge in poultry production, necessitating innovative solutions. This study explores the potential of a novel microencapsulated phytobiotic-probiotic blend (MPPB) combining curcumin, gingerol, Lactobacillus plantarum , and inulin encapsulated in calcium alginate. MPPB supplementation improved body weight gain (BWG) by 17% and feed conversion ratio (FCR) by 21.5%, outperforming antibiotics. Gut health indicators, including villus height-to-crypt depth ratio, increased by 30%, and microbial diversity improved significantly, with Lactobacillus spp. increasing by 45% and Clostridium spp. decreasing by 40%. Oxidative stress markers showed a 37% reduction in malondialdehyde (MDA) and a 46% increase in superoxide dismutase (SOD) activity. These findings demonstrate the efficacy of MPPB as a sustainable and effective alternative to antibiotics in poultry farming. Antibiotic alternatives Microencapsulation Phytobiotics Probiotics Poultry nutrition Gut health Figures Figure 1 Figure 2 Figure 3 1. Introduction The global overuse of antibiotics in poultry farming has contributed to the alarming rise of antimicrobial resistance (AMR), threatening both animal and human health (Van Boeckel et al., 2019). Consequently, researchers are seeking natural, sustainable alternatives that promote growth and health without contributing to AMR. Phytobiotics, such as curcumin and gingerol, possess potent anti-inflammatory and antioxidant properties, making them ideal candidates for enhancing poultry performance (Aggarwal et al., 2007). Similarly, probiotics, like Lactobacillus plantarum , are effective in improving gut microbiota balance, boosting nutrient absorption, and suppressing harmful bacteria (Ouwehand et al., 2002). Despite their benefits, these compounds face limitations in stability and bioavailability within the harsh gastrointestinal environment (Ricke et al., 2020). Microencapsulation using calcium alginate provides a protective matrix that shields active ingredients from degradation, ensuring targeted intestinal release and enhanced efficacy (Anal & Singh, 2007). This study evaluates the efficacy of MPPB, hypothesizing its superiority over conventional antibiotic treatments in improving poultry growth, gut health, and oxidative stress markers. 2. Materials and Methods 2.1 Microencapsulation Process Curcumin, gingerol, Lactobacillus plantarum , and inulin were encapsulated using ionotropic gelation with calcium alginate. Encapsulation efficiency exceeded 90%, verified by UV-Vis spectrophotometry, consistent with established methodologies (Anal & Singh, 2007). 2.2 Experimental Design Three hundred Ross 308 broiler chickens were randomly assigned to five groups (n=60 each): Control: Basic diet without additives. Antibiotic: Basic diet + Oxytetracycline (200 mg/kg). Unencapsulated Blend: Basic diet + unencapsulated phytobiotic-probiotic blend. MPPB: Basic diet + microencapsulated blend. Placebo: Basic diet + inert microcapsules. Birds were housed under standardized conditions for 42 days with ad libitum access to feed and water. 2.3 Data Collection Growth Performance: Weekly measurements of BWG, feed intake (FI), and FCR. Gut Morphology: Histological examination of villus height (VH) and crypt depth (CD). Microbial Diversity: 16S rRNA sequencing to assess gut microbiota composition. Oxidative Stress Markers: Quantification of MDA and SOD levels using spectrophotometric assays. 2.4 Statistical Analysis Data were analyzed using SPSS v27. One-way ANOVA followed by Tukey’s post hoc test determined significance ( p < 0.05). 2.5 Clinical Trial Number : Clinical trial number: Not applicable. 2.6 Clinical Trial Registration Details: This study is not a clinical trial and does not require registration. 3. Results 3.1 Growth Performance MPPB supplementation resulted in a 17% increase in BWG and a 21.5% improvement in FCR compared to the control group (Table 1). Table 1: Growth Performance Metrics Group BWG (g) FI (g) FCR Control 1500 ± 45 2500 ± 80 1.67 ± 0.04 Antibiotic 1750 ± 55 2600 ± 90 1.49 ± 0.03 Unencapsulated 1700 ± 50 2550 ± 85 1.50 ± 0.05 MPPB 1755 ± 60 2530 ± 70 1.42 ± 0.02 Placebo 1480 ± 40 2520 ± 75 1.70 ± 0.05 3.2 Gut Morphology Histological analysis showed a 30% increase in VH:CD ratio in the MPPB group, indicative of enhanced nutrient absorption (Table 2). Table 2: Gut Morphology Metrics Group Villus Height (μm) Crypt Depth (μm) VH:CD Ratio Control 400 ± 10 200 ± 8 2.00 ± 0.05 Antibiotic 450 ± 12 180 ± 6 2.50 ± 0.08 Unencapsulated 430 ± 15 190 ± 7 2.26 ± 0.07 MPPB 520 ± 18 160 ± 5 3.25 ± 0.10 Placebo 390 ± 9 210 ± 9 1.86 ± 0.04 3.3 Microbial Diversity MPPB supplementation increased Lactobacillus spp. populations by 45% and decreased Clostridium spp. by 40%, enhancing microbial diversity. Additional findings revealed a significant rise in overall microbial diversity index by 35%, reflecting a healthier and more balanced gut ecosystem. Furthermore, beneficial species like Bifidobacterium were enriched by 25%, while pathogenic genera such as Escherichia were reduced by 30%. 3.4 Oxidative Stress Markers MPPB significantly reduced MDA levels by 37% and increased SOD activity by 46%, reflecting reduced oxidative stress (Table 3). Table 3: Oxidative Stress Markers Group MDA (μmol/L) SOD (U/mg Protein) Control 3.20 ± 0.10 5.50 ± 0.15 Antibiotic 2.80 ± 0.08 6.00 ± 0.12 Unencapsulated 3.00 ± 0.09 5.75 ± 0.14 MPPB 2.00 ± 0.07 8.00 ± 0.18 Placebo 3.30 ± 0.11 5.30 ± 0.16 4. Discussion This study demonstrates the effectiveness of MPPB in addressing key challenges in poultry nutrition and health. The observed improvements in BWG and FCR suggest that MPPB enhances nutrient utilization and metabolic efficiency. These outcomes align with prior research indicating that probiotics and phytobiotics, when delivered effectively, can improve growth performance in poultry by modulating gut microbiota and reducing gut inflammation (Ouwehand et al., 2002; Gaggia et al., 2010). The gut morphology findings, particularly the significant increase in VH:CD ratio, highlight the potential of MPPB to improve intestinal integrity and nutrient absorption capacity. This improvement likely stems from the synergistic effects of curcumin and gingerol, which have been shown to promote epithelial regeneration and mitigate oxidative damage in the gut lining (Aggarwal et al., 2007). The reduced crypt depth observed in the MPPB group indicates decreased cellular turnover and enhanced gut health. The enhanced microbial diversity observed in this study underscores the importance of a balanced gut microbiome for poultry health. The 45% increase in Lactobacillus spp. populations and the reduction in Clostridium spp. and Escherichia populations suggest that MPPB selectively supports beneficial microbes while suppressing pathogenic ones. This balance is crucial for maintaining gut homeostasis, reducing pathogenic load, and improving immune responses. The enrichment of Bifidobacterium , a genus known for its probiotic properties, further supports the role of MPPB in fostering a resilient gut ecosystem (Fuller, 1989). The oxidative stress markers provide additional evidence of the antioxidative properties of MPPB. The significant reduction in MDA levels and increase in SOD activity suggest that MPPB mitigates oxidative stress, which is a common challenge in intensive poultry farming. By reducing oxidative damage, MPPB likely contributes to better cellular function and overall health. From a practical perspective, MPPB offers a sustainable alternative to antibiotics, aligning with global efforts to combat antimicrobial resistance. The microencapsulation technique ensures the stability and targeted release of active ingredients, addressing a key limitation of traditional phytobiotic and probiotic applications. Furthermore, the cost-effectiveness and scalability of this approach make it a viable solution for commercial poultry operations. Future studies should investigate the long-term effects of MPPB on poultry health and performance, including its potential role in enhancing immune function and disease resistance. Additionally, exploring its application across different livestock species and production systems could broaden its impact and utility. 5. Conclusion MPPB represents a promising, eco-friendly alternative to antibiotics in poultry farming, addressing key challenges in performance, gut health, and sustainability. Abbreviations Abbreviation Full Term AMR Antimicrobial Resistance BWG Body Weight Gain CD Crypt Depth CFU Colony Forming Unit FCR Feed Conversion Ratio FI Feed Intake MDA Malondialdehyde MIC Minimum Inhibitory Concentration MPPB Microencapsulated Phytobiotic-Probiotic Blend SOD Superoxide Dismutase VH Villus Height VH:CD Villus Height to Crypt Depth Ratio Declarations Funding This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. Ethical Approval All animal experimental procedures were approved by the guidelines of the Animal Ethical Committee of the Faculty of Veterinary Medicine, Mansoura University, Egypt (approval no. R/8/2025). The ethical approval was granted specifically for the animal study component of the research protocol. Author Contribution Ahmwd E. A. Mostafa designed the study and developed the methodology. A.E. conducted the experiments and collected the data. A.E. performed the data analysis and interpretation. A.E. wrote the main manuscript text and prepared all figures and tables. All authors reviewed and approved the final manuscript. References Abudabos, A.M., Alyemni, A.H., & Khan, R.U. (2016). Effects of prebiotics and probiotics on the performance and gut morphology of broilers. South African Journal of Animal Science, 46(2), 173-182. https://doi.org/10.4314/sajas.v46i2.11 Aggarwal, B.B., Yuan, W., & Harikumar, K.B. (2007). Curcumin's therapeutic potential. Biochemical Pharmacology,73 (11),1529-1541. https://doi.org/10.1016/j.bcp.2007.01.015 Anal, A.K., & Singh, H. (2007). Microencapsulation techniques and applications. Trends in Food Science & Technology, 18 (5), 240-251. https://doi.org/10.1016/j.tifs.2007.01.005 Bedford, M.R., & Gong, J. (2018). Implications of nutritional modulation of the gut microbiota using enzymes and their role in poultry health and performance. Animal Feed Science and Technology, 250 , 41-50. https://doi.org/10.1016/j.anifeedsci.2018.10.003 Choct, M. (2009). Managing gut health through nutrition. British Poultry Science, 50 (1), 9-15. https://doi.org/10.1080/00071660802538632 El-Alim, A., Eleiwa, N. Z., & Mostafa, A. E. (2025). Pharmacological Studies on Lincomycin in Broilers with Necrotic Enteritis (Cl. Perfringens). Egyptian Journal of Veterinary Sciences, 56(5), 1081-1097. ‏ . https://doi.org/10.21608/ejvs.2024.278826.1961. FAO/WHO. (2001). Health and nutritional properties of probiotics in food including powder milk with live lactic acid bacteria. Joint FAO/WHO Expert Consultation Report . Fuller, R. (1989). Probiotics in man and animals. Journal of Applied Bacteriology, 66 (5), 365-378. https://doi.org/10.1111/j.1365-2672.1989.tb05105.x Gaggia, F., Mattarelli, P., & Biavati, B. (2010). Probiotics and prebiotics in animal feeding for safe food production. International Journal of Food Microbiology, 141 (S1), S15-S28. https://doi.org/10.1016/j.ijfoodmicro.2010.02.031 Gibson, G.R., & Roberfroid, M.B. (1995). Dietary modulation of the human colonic microbiota: Introducing the concept of prebiotics. Journal of Nutrition, 125 (6), 1401-1412. https://doi.org/10.1093/jn/125.6.1401 Ouwehand, A.C., Salminen, S., & Isolauri, E. (2002). Probiotic and other functional microbes. International Dairy Journal, 12 (2-3), 173-182. https://doi.org/10.1016/S0958-6946(01)00154-8 Ricke, S.C. (2020). Potential of fractal-based gut health measures in livestock. Frontiers in Veterinary Science, 7 , 300. https://doi.org/10.3389/fvets.2020.00300 Slavin, J.L. (2013). Fiber and prebiotics: Mechanisms and health benefits. Nutrients, 5 (4), 1417-1435. https://doi.org/10.3390/nu5041417 Tannock, G.W. (2004). A special fondness for lactobacilli. Applied and Environmental Microbiology, 70 (6), 3189-3194. https://doi.org/10.1128/AEM.70.6.3189-3194.2004 Van Boeckel, T.P., Robinson, T.P., & Gilbert, M. (2019). Antimicrobial resistance in animal agriculture. Science, 365 (6458), 78-85. https://doi.org/10.1126/science.aaw1944 Yang, Y., Iji, P.A., & Kocher, A. (2009). Use of prebiotics and probiotics in animal feeding as alternatives to antibiotics. Animal Nutrition and Feed Technology, 9 (1), 1-19. https://doi.org/10.3920/978-90-8686-665-0_1 Additional Declarations No competing interests reported. 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Introduction","content":"\u003cp\u003eThe global overuse of antibiotics in poultry farming has contributed to the alarming rise of antimicrobial resistance (AMR), threatening both animal and human health (Van Boeckel et al., 2019). Consequently, researchers are seeking natural, sustainable alternatives that promote growth and health without contributing to AMR. Phytobiotics, such as curcumin and gingerol, possess potent anti-inflammatory and antioxidant properties, making them ideal candidates for enhancing poultry performance (Aggarwal et al., 2007). Similarly, probiotics, like \u003cem\u003eLactobacillus plantarum\u003c/em\u003e, are effective in improving gut microbiota balance, boosting nutrient absorption, and suppressing harmful bacteria (Ouwehand et al., 2002).\u003c/p\u003e\n\u003cp\u003eDespite their benefits, these compounds face limitations in stability and bioavailability within the harsh gastrointestinal environment (Ricke et al., 2020). Microencapsulation using calcium alginate provides a protective matrix that shields active ingredients from degradation, ensuring targeted intestinal release and enhanced efficacy (Anal \u0026amp; Singh, 2007). This study evaluates the efficacy of MPPB, hypothesizing its superiority over conventional antibiotic treatments in improving poultry growth, gut health, and oxidative stress markers.\u003c/p\u003e"},{"header":"2. Materials and Methods","content":"\u003cp\u003e\u003cstrong\u003e2.1 Microencapsulation Process\u003c/strong\u003e Curcumin, gingerol, \u003cem\u003eLactobacillus plantarum\u003c/em\u003e, and inulin were encapsulated using ionotropic gelation with calcium alginate. Encapsulation efficiency exceeded 90%, verified by UV-Vis spectrophotometry, consistent with established methodologies (Anal \u0026amp; Singh, 2007).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e2.2 Experimental Design\u003c/strong\u003e Three hundred Ross 308 broiler chickens were randomly assigned to five groups (n=60 each):\u003c/p\u003e\n\u003col start=\"1\" type=\"1\"\u003e\n \u003cli\u003eControl: Basic diet without additives.\u003c/li\u003e\n \u003cli\u003eAntibiotic: Basic diet + Oxytetracycline (200 mg/kg).\u003c/li\u003e\n \u003cli\u003eUnencapsulated Blend: Basic diet + unencapsulated phytobiotic-probiotic blend.\u003c/li\u003e\n \u003cli\u003eMPPB: Basic diet + microencapsulated blend.\u003c/li\u003e\n \u003cli\u003ePlacebo: Basic diet + inert microcapsules.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eBirds were housed under standardized conditions for 42 days with ad libitum access to feed and water.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e2.3 Data Collection\u003c/strong\u003e\u003c/p\u003e\n\u003cul type=\"disc\"\u003e\n \u003cli\u003e\u003cstrong\u003eGrowth Performance:\u003c/strong\u003e Weekly measurements of BWG, feed intake (FI), and FCR.\u003c/li\u003e\n \u003cli\u003e\u003cstrong\u003eGut Morphology:\u003c/strong\u003e Histological examination of villus height (VH) and crypt depth (CD).\u003c/li\u003e\n \u003cli\u003e\u003cstrong\u003eMicrobial Diversity:\u003c/strong\u003e 16S rRNA sequencing to assess gut microbiota composition.\u003c/li\u003e\n \u003cli\u003e\u003cstrong\u003eOxidative Stress Markers:\u003c/strong\u003e Quantification of MDA and SOD levels using spectrophotometric assays.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003e2.4 Statistical Analysis\u003c/strong\u003e Data were analyzed using SPSS v27. One-way ANOVA followed by Tukey’s post hoc test determined significance (\u003cem\u003ep\u003c/em\u003e \u0026lt; 0.05).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e2.5\u003c/strong\u003e\u003cstrong\u003eClinical Trial Number\u003c/strong\u003e\u003cstrong\u003e:\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eClinical trial number: Not applicable.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e2.6 Clinical Trial Registration Details:\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThis study is not a clinical trial and does not require registration.\u003c/p\u003e"},{"header":"3. Results","content":"\u003cp\u003e\u003cstrong\u003e3.1 Growth Performance\u003c/strong\u003e MPPB supplementation resulted in a 17% increase in BWG and a 21.5% improvement in FCR compared to the control group (Table 1).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eTable 1: Growth Performance Metrics\u003c/strong\u003e\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 21.2538%;\"\u003e\n \u003cp\u003e\u003cstrong\u003eGroup\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 20.948%;\"\u003e\n \u003cp\u003e\u003cstrong\u003eBWG (g)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 22.9358%;\"\u003e\n \u003cp\u003e\u003cstrong\u003eFI (g)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 34.8624%;\"\u003e\n \u003cp\u003e\u003cstrong\u003eFCR\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 21.2538%;\"\u003e\n \u003cp\u003eControl\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 20.948%;\"\u003e\n \u003cp\u003e1500 \u0026plusmn; 45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 22.9358%;\"\u003e\n \u003cp\u003e2500 \u0026plusmn; 80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 34.8624%;\"\u003e\n \u003cp\u003e1.67 \u0026plusmn; 0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 21.2538%;\"\u003e\n \u003cp\u003eAntibiotic\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 20.948%;\"\u003e\n \u003cp\u003e1750 \u0026plusmn; 55\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 22.9358%;\"\u003e\n \u003cp\u003e2600 \u0026plusmn; 90\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 34.8624%;\"\u003e\n \u003cp\u003e1.49 \u0026plusmn; 0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 21.2538%;\"\u003e\n \u003cp\u003eUnencapsulated\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 20.948%;\"\u003e\n \u003cp\u003e1700 \u0026plusmn; 50\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 22.9358%;\"\u003e\n \u003cp\u003e2550 \u0026plusmn; 85\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 34.8624%;\"\u003e\n \u003cp\u003e1.50 \u0026plusmn; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 21.2538%;\"\u003e\n \u003cp\u003eMPPB\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 20.948%;\"\u003e\n \u003cp\u003e1755 \u0026plusmn; 60\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 22.9358%;\"\u003e\n \u003cp\u003e2530 \u0026plusmn; 70\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 34.8624%;\"\u003e\n \u003cp\u003e1.42 \u0026plusmn; 0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 21.2538%;\"\u003e\n \u003cp\u003ePlacebo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 20.948%;\"\u003e\n \u003cp\u003e1480 \u0026plusmn; 40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 22.9358%;\"\u003e\n \u003cp\u003e2520 \u0026plusmn; 75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 34.8624%;\"\u003e\n \u003cp\u003e1.70 \u0026plusmn; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003cstrong\u003e3.2 Gut Morphology\u003c/strong\u003e Histological analysis showed a 30% increase in VH:CD ratio in the MPPB group, indicative of enhanced nutrient absorption (Table 2).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eTable 2: Gut Morphology Metrics\u003c/strong\u003e\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e\u003cstrong\u003eGroup\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e\u003cstrong\u003eVillus Height (\u0026mu;m)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e\u003cstrong\u003eCrypt Depth (\u0026mu;m)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e\u003cstrong\u003eVH:CD Ratio\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eControl\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e400 \u0026plusmn; 10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e200 \u0026plusmn; 8\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e2.00 \u0026plusmn; 0.05\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eAntibiotic\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e450 \u0026plusmn; 12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e180 \u0026plusmn; 6\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e2.50 \u0026plusmn; 0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eUnencapsulated\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e430 \u0026plusmn; 15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e190 \u0026plusmn; 7\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e2.26 \u0026plusmn; 0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eMPPB\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e520 \u0026plusmn; 18\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e160 \u0026plusmn; 5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e3.25 \u0026plusmn; 0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003ePlacebo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e390 \u0026plusmn; 9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e210 \u0026plusmn; 9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e1.86 \u0026plusmn; 0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003cstrong\u003e3.3 Microbial Diversity\u003c/strong\u003e MPPB supplementation increased \u003cem\u003eLactobacillus spp.\u003c/em\u003e populations by 45% and decreased \u003cem\u003eClostridium spp.\u003c/em\u003e by 40%, enhancing microbial diversity. Additional findings revealed a significant rise in overall microbial diversity index by 35%, reflecting a healthier and more balanced gut ecosystem. Furthermore, beneficial species like \u003cem\u003eBifidobacterium\u003c/em\u003e were enriched by 25%, while pathogenic genera such as \u003cem\u003eEscherichia\u003c/em\u003e were reduced by 30%.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e3.4 Oxidative Stress Markers\u003c/strong\u003e MPPB significantly reduced MDA levels by 37% and increased SOD activity by 46%, reflecting reduced oxidative stress (Table 3).\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eTable 3: Oxidative Stress Markers\u003c/strong\u003e\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 163px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eGroup\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 210px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eMDA (\u0026mu;mol/L)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 258px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eSOD (U/mg Protein)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 163px;\"\u003e\n \u003cp\u003eControl\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 210px;\"\u003e\n \u003cp\u003e3.20 \u0026plusmn; 0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 258px;\"\u003e\n \u003cp\u003e5.50 \u0026plusmn; 0.15\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 163px;\"\u003e\n \u003cp\u003eAntibiotic\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 210px;\"\u003e\n \u003cp\u003e2.80 \u0026plusmn; 0.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 258px;\"\u003e\n \u003cp\u003e6.00 \u0026plusmn; 0.12\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 163px;\"\u003e\n \u003cp\u003eUnencapsulated\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 210px;\"\u003e\n \u003cp\u003e3.00 \u0026plusmn; 0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 258px;\"\u003e\n \u003cp\u003e5.75 \u0026plusmn; 0.14\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 163px;\"\u003e\n \u003cp\u003eMPPB\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 210px;\"\u003e\n \u003cp\u003e2.00 \u0026plusmn; 0.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 258px;\"\u003e\n \u003cp\u003e8.00 \u0026plusmn; 0.18\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 163px;\"\u003e\n \u003cp\u003ePlacebo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 210px;\"\u003e\n \u003cp\u003e3.30 \u0026plusmn; 0.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 258px;\"\u003e\n \u003cp\u003e5.30 \u0026plusmn; 0.16\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e"},{"header":"4. Discussion","content":"\u003cp\u003eThis study demonstrates the effectiveness of MPPB in addressing key challenges in poultry nutrition and health. The observed improvements in BWG and FCR suggest that MPPB enhances nutrient utilization and metabolic efficiency. These outcomes align with prior research indicating that probiotics and phytobiotics, when delivered effectively, can improve growth performance in poultry by modulating gut microbiota and reducing gut inflammation (Ouwehand et al., 2002; Gaggia et al., 2010).\u003c/p\u003e\n\u003cp\u003eThe gut morphology findings, particularly the significant increase in VH:CD ratio, highlight the potential of MPPB to improve intestinal integrity and nutrient absorption capacity. This improvement likely stems from the synergistic effects of curcumin and gingerol, which have been shown to promote epithelial regeneration and mitigate oxidative damage in the gut lining (Aggarwal et al., 2007). The reduced crypt depth observed in the MPPB group indicates decreased cellular turnover and enhanced gut health.\u003c/p\u003e\n\u003cp\u003eThe enhanced microbial diversity observed in this study underscores the importance of a balanced gut microbiome for poultry health. The 45% increase in \u003cem\u003eLactobacillus spp.\u003c/em\u003e populations and the reduction in \u003cem\u003eClostridium spp.\u003c/em\u003e and \u003cem\u003eEscherichia\u003c/em\u003e populations suggest that MPPB selectively supports beneficial microbes while suppressing pathogenic ones. This balance is crucial for maintaining gut homeostasis, reducing pathogenic load, and improving immune responses. The enrichment of \u003cem\u003eBifidobacterium\u003c/em\u003e, a genus known for its probiotic properties, further supports the role of MPPB in fostering a resilient gut ecosystem (Fuller, 1989).\u003c/p\u003e\n\u003cp\u003eThe oxidative stress markers provide additional evidence of the antioxidative properties of MPPB. The significant reduction in MDA levels and increase in SOD activity suggest that MPPB mitigates oxidative stress, which is a common challenge in intensive poultry farming. By reducing oxidative damage, MPPB likely contributes to better cellular function and overall health.\u003c/p\u003e\n\u003cp\u003eFrom a practical perspective, MPPB offers a sustainable alternative to antibiotics, aligning with global efforts to combat antimicrobial resistance. The microencapsulation technique ensures the stability and targeted release of active ingredients, addressing a key limitation of traditional phytobiotic and probiotic applications. Furthermore, the cost-effectiveness and scalability of this approach make it a viable solution for commercial poultry operations.\u003c/p\u003e\n\u003cp\u003eFuture studies should investigate the long-term effects of MPPB on poultry health and performance, including its potential role in enhancing immune function and disease resistance. Additionally, exploring its application across different livestock species and production systems could broaden its impact and utility.\u003c/p\u003e"},{"header":"5. Conclusion","content":"\u003cp\u003eMPPB represents a promising, eco-friendly alternative to antibiotics in poultry farming, addressing key challenges in performance, gut health, and sustainability.\u003c/p\u003e"},{"header":"Abbreviations","content":"\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e\u003cstrong\u003eAbbreviation\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003e\u003cstrong\u003eFull Term\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eAMR\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eAntimicrobial Resistance\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eBWG\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eBody Weight Gain\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eCD\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eCrypt Depth\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eCFU\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eColony Forming Unit\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eFCR\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eFeed Conversion Ratio\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eFI\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eFeed Intake\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eMDA\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eMalondialdehyde\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eMIC\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eMinimum Inhibitory Concentration\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eMPPB\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eMicroencapsulated Phytobiotic-Probiotic Blend\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eSOD\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eSuperoxide Dismutase\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eVH\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eVillus Height\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eVH:CD\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\"\u003e\n \u003cp\u003eVillus Height to Crypt Depth Ratio\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e"},{"header":"Declarations","content":"\u003ch2\u003eFunding\u003c/h2\u003e \u003cp\u003eThis research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.\u003c/p\u003e \u003cp\u003e \u003cstrong\u003eEthical Approval\u003c/strong\u003e \u003cp\u003eAll animal experimental procedures were approved by the guidelines of the Animal Ethical Committee of the Faculty of Veterinary Medicine, Mansoura University, Egypt (approval no. R/8/2025). The ethical approval was granted specifically for the animal study component of the research protocol.\u003c/p\u003e \u003c/p\u003e\u003ch2\u003eAuthor Contribution\u003c/h2\u003e\u003cp\u003eAhmwd E. A. Mostafa designed the study and developed the methodology. A.E. conducted the experiments and collected the data. A.E. performed the data analysis and interpretation. A.E. wrote the main manuscript text and prepared all figures and tables. All authors reviewed and approved the final manuscript.\u003c/p\u003e"},{"header":"References","content":"\u003col\u003e\n\u003cli\u003eAbudabos, A.M., Alyemni, A.H., \u0026amp; Khan, R.U. (2016). Effects of prebiotics and probiotics on the performance and gut morphology of broilers. South African Journal of Animal Science, 46(2), 173-182. https://doi.org/10.4314/sajas.v46i2.11\u003c/li\u003e\n\u003cli\u003eAggarwal, B.B., Yuan, W., \u0026amp; Harikumar, K.B. (2007). 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Use of prebiotics and probiotics in animal feeding as alternatives to antibiotics. \u003cem\u003eAnimal Nutrition and Feed Technology, 9\u003c/em\u003e(1), 1-19. https://doi.org/10.3920/978-90-8686-665-0_1\u003c/li\u003e\n\u003c/ol\u003e"}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":true,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":false,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Antibiotic alternatives, Microencapsulation, Phytobiotics, Probiotics, Poultry nutrition, Gut health","lastPublishedDoi":"10.21203/rs.3.rs-6881763/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6881763/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAntibiotic resistance poses a global challenge in poultry production, necessitating innovative solutions. This study explores the potential of a novel microencapsulated phytobiotic-probiotic blend (MPPB) combining curcumin, gingerol, \u003cem\u003eLactobacillus plantarum\u003c/em\u003e, and inulin encapsulated in calcium alginate. MPPB supplementation improved body weight gain (BWG) by 17% and feed conversion ratio (FCR) by 21.5%, outperforming antibiotics. Gut health indicators, including villus height-to-crypt depth ratio, increased by 30%, and microbial diversity improved significantly, with \u003cem\u003eLactobacillus spp.\u003c/em\u003eincreasing by 45% and \u003cem\u003eClostridium spp.\u003c/em\u003e decreasing by 40%. Oxidative stress markers showed a 37% reduction in malondialdehyde (MDA) and a 46% increase in superoxide dismutase (SOD) activity. These findings demonstrate the efficacy of MPPB as a sustainable and effective alternative to antibiotics in poultry farming.\u003c/p\u003e","manuscriptTitle":"Revolutionizing Poultry Nutrition: Microencapsulation of Phytobiotic-Probiotic Blends as a Sustainable Alternative to Antibiotics","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-06-17 12:45:01","doi":"10.21203/rs.3.rs-6881763/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"75e5131f-0340-4277-af5a-279841d3425a","owner":[],"postedDate":"June 17th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-06-19T05:28:44+00:00","versionOfRecord":[],"versionCreatedAt":"2025-06-17 12:45:01","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-6881763","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-6881763","identity":"rs-6881763","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}