Impact of treatment with anti-parasitic (Ivermectin) during prepartum period on mastitis and postpartum reproductive efficiency measurements in Egyptian Baladi cows

Abstract The current investigation was designed to determine the effect of treatment with anti-parasites (Ivermectin) on mastitis and postpartum reproductive efficiency measurements in Egyptian Baladi cows. Twenty-four of the cows included in this study were split into two groups. The first group (n = 12 cows) was injected two months prepartum with two doses (15 days inter-treatment) of IVOMEC® Plus solution subcutaneously behind the shoulder, 1ml/50kg live body weight as prescribed by the manufacturer, whilst the other group (n = 12 cows) was used as a control group. The present results revealed that the incident rate of mastitis in treated cows’ group was significantly (P < 0.05) lower (16.7%) than control cows’ group (41.7%). The conception rate in treated cows’ group was significantly (P < 0.05) higher (66.7%) compared with (33.3%) in control group. The time from calving to conception in treated cows was significantly (P < 0.05) lower 86.5 ± 11.4 days compared to 123.3 ± 13.2 days in the control group. The occurrence rate of anestrous cases was significantly (P < 0.05) lower (8.3%) in treated cows than (control group) (25%). In conclusion, the current study indicates there is an association between treated cows with anti-parasites (Ivermectin) two months prepartum and incidence rate of mastitis addition an improvement in the reproductive performance in treated cows relative to untreated cows. Therefore, the current study recommends the herdsmen treats their cows with anti-parasites (Ivermectin) during the prepartum period for less mastitis incidence rate and better reproductive efficiency.