Effect of split weaning on sow ovulatory responses to injection of gonadotrophins during lactation
Roy N. Kirkwood, DVM, PhD, Diplomate ECAR; Kevin C. Turner; David L. Rutley, PhD
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At day 18 of lactation, 21 of 42 sows had their litters reduced to five or six piglets and all sows received gonadotrophins. Remaining piglets were weaned at day 26. More split-weaned than control sows had elevated serum progesterone 2 days post weaning (47.6% versus 9.5%; P < .05).
Keywords: PG600, split wean, ovulation
Cite as: Kirkwood RN, Turner KC, Rutley DL. Effect of split weaning on sow ovulatory responses to injection of gonadotrophins during lactation. J Swine Health Prod 2013;21(1):42-44.
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