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The 'right' time to serve

The ‘right’ time to inseminate varies between farms and individual sows, so it is important to adapt the insemination routine to the specific farm.
Insemination must occur some hours before ovulation, which normally happens two thirds of the way through oestrus, eg 36-44 hours after onset of oestrus. Acceptable fertilisation results are normally achieved by inseminating 24 hours before ovulation.
Accurately identifying the start of first standing heat is the most important thing to get right as inseminating too early or late will result in poorer litter sizes and lower farrowing rates.
Producers should carry out ‘oestrus mapping’ for their unit; this involves testing for standing heat in the morning and afternoon, to help ensure that timing of boar contact, testing for standing heat and insemination are all being carried out at the optimum times.
To download the factsheet, Action for Productivity 31: Optimising timing of service and for more information on the Breed +3 initiative, go to: www.bpex.org.uk/2TS/breeding/  


By AHDBPork at 7 Aug 2013, 08:40 AM

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