CPR2009 Control of Pig Reproduction VIII Management of Ovarian Activity in Swine (4 abstracts)
Ovarian responses to laetation management strategies
N.M. Soede 1 , W. Hazeleger 1 , R. Gerritsen 2 & P. Langendijk 3 and B. Kemp
1Adaptation Physiology Group, PO Box 338 6700 AH Wageningen University, Wageningen, The Netherlands; 2 Current address: Schothorst Feed Research, Lelystad; 3SARDI Livestock, Roseworthy Campus, South Australia
A number of lactation management strategies can be applied to reduce negative effects of lactation on post-weaning fertility. This paper focuses on effects of lactation length, Intermittent Suckling and Split Weaning on follicle development and subsequent oestrus. It is concluded that a lactation length of less than 3 weeks still leads to suboptimal reproductive performance in our modern sows. Further, both Intermittent Suckling and Split Weaning stimulate lactational follicle development and oestrus, but the variation in response between sows still limits practical application.
© 2009 Society for Reproduction and Fertility
Volume 18
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