Abstract
Seventy-nine primiparous crossbred Lacaune ewes were synchronized (in the anestrous season) with progestagen sponges, with mating at 75 or 90 d post-partum. Increasing the post-partum interval from 75 to 90 d improved body condition at mating, lambing rate, number of lambs born per ewe lambed, litter weight at birth, and number of lambs born per ewe treated. In conclusion, the productivity of primiparous ewes in an accelerated lambing system tended to improve when the lambing-to-rebreeding interval was increased from 75 to 90 d. Key words: Ewe, post-partum, anestrus, estrus synchronization, fertility, prolificacy
Publisher
Canadian Science Publishing
Subject
Animal Science and Zoology,Food Animals
Cited by
6 articles.
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