Postpartum anestrus in cows

Abstract

The study was conducted on 70 cows of Friesian and Holstein breed in AL-Faihaa station, Babylon Governorate during the period from January 2002 to March 2002. The age of animals ranged between 2 to 7 years. The study was designed to know the prevalence of postpartum anestrus and their treatments in cows. The prevalence of postpartum anestrus was 51.42% (36/70). The animals suffering from persistent corpus luteum were showed an incidence of 38.88% (14/36). The animals were treated with 15 mg PGF2α i.m. The animals suffering from inactive ovaries were showed an incidence of 61.11% (22/36). The animals suffered from inactive ovaries (n = 22) were divided into three groups; the first group (n = 9) were treated with 50 ml Lugol’s Iodine solution 5% intra uterine; The second group (n = 6) were treated with 0.5 mg GnRH i.m. while the third group (n = 7) treated with 6 mg estradiol benzoate i.m. The efficiency of the treatments were 55.5% , 100% and 71.4% respectively. There was a significant difference (P< 0.05) between different groups. It was concluded from this study that the postpartum anestrus prevalence is high and could be treated with PGF2α or GnRH with high success rate.

Keywords

Postpartum, anestrus, in, cows