Conception rate and prolificacy of ewes artificially inseminated in oestrus stimulated with progesterone and PMSG within seasonal anoestrus
1987
Stancic, B. (Poljoprivredni fakultet, Novi Sad (Yugoslavia)) | Krajinovic, M. | Mesaros, A. | Fogarasi, Dj.
The object of this experiment was to estimate conception rate (CR) and prolificacy of ewes single or double artificially inseminated (48 or 48 and 60 hours), after progestagen-PMSG treatment. It was found that the CR, after single AI was 57,6% and after double AI 83,0%, from total number of treated (AI) ewes. Prolificacy (lambs per labed ewe), was 1.39 and 1.40 lambs, after single or double AI, resp. CR after double AI was 83,0% and 92.4% after natural meeting in estimated spontaneous oestrus. Prolificacy was very similar in double AI (1.40 lambs) and natural meated (1.35 lambs) ewes.
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