EFFECT OF THE METHOD OF POSTPARTUM ADMINISTRATION OF OXYTOCIN OR PGF2ΑON THE DROP OF RETAINED PLACENTA IN COWS AND SUBSEQUENT REPRODUCTIVE AND REPRODUCTIVE PERFORMANCE | ||||
| Kafrelsheikh Veterinary Medical Journal | ||||
| Article 2, Volume 17, Issue 1, April 2019, Page 18-35 PDF (715.29 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/kvmj.2019.110200 | ||||
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| Authors | ||||
| R. M. Abou-Aiana* 1; R. M Hammad2; M. E. R. Sh. A. Gabr2; A. M. Amer1; E.A.A. Ahmadi1; A. H. A. Alharoon1 | ||||
| 1Animal Production Research Institute, Dokki, Giza, Egypt | ||||
| 2Animal Production Department, Faculty of Agriculture, Tanta University, Egypt | ||||
| Abstract | ||||
| Fourty Friesian cows(about 5-7 years and 450- 550 kg weight) with dystocia and retained placenta were used in the present study. The experimental animals (n=40) were divided into five groups,(8 each). The first group was intramuscularly (I.M) injected with saline solution and kept as a control group, second group was I.M injected with 50 IU of oxytocin, third group was I.M injected with 500 µg of PGF2α analogue, fourth group was administered 50 IU oxytocin then10mL 0.9% NaCl via intra-umbilical artery. The fifth group was administered500 µg PGF2α then 10mL 0.9% NaCl via intra-umbilical artery . All animals in the different groups ( control and treated) were administeredafter1-2 hours of calving. Time (h) of placenta expulsion, Time (d) of uterine involution, Postpartum first estrus/service interval(PPFEI),Service period (SP), Daysopen (DO), Number of services per conception (NSC), conception rate (CR)were recorded. The obtained results showed that, the time for expulsion of placenta and uterine involution, PPFEI, PPFSI, DO, SP, NSC were significantly (P <0.05) shorter in PGF2α (IUA) treatment group compared other groups while, all treatment groups were significantly (P <0.05) shorter than the control group. The conception rate was significantly the highest in PGF2α (IUA) group and significantly higher (P<0.05) in treatment groups than that in control group. Milk yield in 90 days was significantly (P<0.05) the highest in PGF2α (IUA) group and significantly higher (P<0.05) in treatment groups than that in control group. In conclusion, administration of 500 µg PGF2α then 10mL 0.9% NaCl via umbilical artery immediately after expulsion of the fetus induce early expulsion of fetal membrane and improving the reproductive and productive performance of Friesian cattle experienced retention of fetal membrane. | ||||
| Keywords | ||||
| cow; PGF2α; oxytocin; umbilical cord; uterine involution | ||||
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