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Abstract
The present study was carried out on 200 Holstein Friesian cows Kept at El-Moulak farm–Ismailia province. Their age ranged between 2.5 – 5 years and their parity ranged from 1-3. They were kept under the same nutritional and managemental conditions during the period of study from January 2004 till December 2005. All the cows at the farm were housed in tie stall barns. The incidence and overall incidence of postpartum anestrus during the period of study were recorded.
The reproductive performance regarding anestrus period, days open, calving interval, No. of A.I./conception, daily milk yield and its effect on some reproductive parameters and conception rate after 1st, 2nd and 3rd A.I. were recorded to cows with postpartum anestrus (ovarian inactivity (n=19), persistent CL (n=16) and pyometra (n=11) compared to normal cyclic cows (n=15) after their treatment.
Blood samples were collected from normal cyclic Holstein Friesian cows (n=15) and those with postpartum anestrus before their treatment {ovarian inactivity (n=32), persistent CL (n=20) and pyometra (n=12)} for determination of serum total protein, albumin, globulin, A/G ratio, Iron, calcium, phosphorus and ca / ph ratio. In addition ten blood samples were collected from the normal cyclic cows and those with postpartum anestrus for estimation of serum progesterone.
Therapeutic trials for treatment of Holstein Friesian cows with postpartum anestrus were performed