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Differences in production values between high- and low-productivity swine breeding herds



Differences in production values between high- and low-productivity swine breeding herds



Journal of Animal Science 68(12): 3972-3979



Data from Aug. 1985 to July 1986 were collected from 80 North American users of a computerised health and management programme. Data from 54 of the herds were selected for analysis. These herds had a stable size, complete data, a weaning-to-1st service interval of >3 and <20 days, a culling rate of >10%, an average of 18.2 pigs weaned per per yr (PWFY), 2.1 litters per per yr (LFY), a farrowing rate of 81%, 10.2 liveborn pigs per litter and 14.5% preweaning mortality.

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Accession: 002072322

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PMID: 2286540



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