Lactational oestrus can be induced using piglet separation and/or boar exposure in multiparous commercial breeding sows

E.J. McDonald, J.I. Wilkinson, C.L. Collins, Jan Lievaart, J.A. Downing

Research output: Book chapter/Published conference paperConference paper

12 Citations (Scopus)

Abstract

A commercially acceptable lactational oestrus induction protocol could be used to modify current weaning and mating management systems within the pork industry. Piglet separation and limited boar exposure during lactation has successfully resulted in an 85% pregnancy rate and acceptable subsequent litter sizes (Downing et al., 2009). A suitable induction protocol has the potential to delay weaning, increase weight gain of piglets after weaning (Thompson et al., 1981) and help in the management of ‘weaner setback’. Our hypothesis is that from 21 days of lactation, either full boar contact or piglet separation for 8h/d for 3 days will be sufficient to induce oestrus.
Original languageEnglish
Title of host publicationManipulating Pig Production XIV
EditorsJohn Pluske, Jo Pluske
Place of PublicationMelbourne
PublisherThe Australasian Pig Science Association
Pages171-171
Number of pages1
Publication statusPublished - 2013
EventAustralasian Pig Science Association (APSA) Biennial Conference - Melbourne, Australia
Duration: 24 Nov 201327 Nov 2013

Conference

ConferenceAustralasian Pig Science Association (APSA) Biennial Conference
CountryAustralia
Period24/11/1327/11/13

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boars
sows
piglets
estrus
weaning
breeding
lactation
pork industry
weanlings
pregnancy rate
litter size
management systems
weight gain

Cite this

McDonald, E. J., Wilkinson, J. I., Collins, C. L., Lievaart, J., & Downing, J. A. (2013). Lactational oestrus can be induced using piglet separation and/or boar exposure in multiparous commercial breeding sows. In J. Pluske, & J. Pluske (Eds.), Manipulating Pig Production XIV (pp. 171-171). Melbourne: The Australasian Pig Science Association.
McDonald, E.J. ; Wilkinson, J.I. ; Collins, C.L. ; Lievaart, Jan ; Downing, J.A. / Lactational oestrus can be induced using piglet separation and/or boar exposure in multiparous commercial breeding sows. Manipulating Pig Production XIV. editor / John Pluske ; Jo Pluske. Melbourne : The Australasian Pig Science Association, 2013. pp. 171-171
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McDonald, EJ, Wilkinson, JI, Collins, CL, Lievaart, J & Downing, JA 2013, Lactational oestrus can be induced using piglet separation and/or boar exposure in multiparous commercial breeding sows. in J Pluske & J Pluske (eds), Manipulating Pig Production XIV. The Australasian Pig Science Association, Melbourne, pp. 171-171, Australasian Pig Science Association (APSA) Biennial Conference, Australia, 24/11/13.

Lactational oestrus can be induced using piglet separation and/or boar exposure in multiparous commercial breeding sows. / McDonald, E.J.; Wilkinson, J.I.; Collins, C.L.; Lievaart, Jan; Downing, J.A.

Manipulating Pig Production XIV. ed. / John Pluske; Jo Pluske. Melbourne : The Australasian Pig Science Association, 2013. p. 171-171.

Research output: Book chapter/Published conference paperConference paper

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McDonald EJ, Wilkinson JI, Collins CL, Lievaart J, Downing JA. Lactational oestrus can be induced using piglet separation and/or boar exposure in multiparous commercial breeding sows. In Pluske J, Pluske J, editors, Manipulating Pig Production XIV. Melbourne: The Australasian Pig Science Association. 2013. p. 171-171