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Journal of Animal Science, Vol 78, Issue 11 2832-2835, Copyright © 2000 by American Society of Animal Science

JOURNAL ARTICLE

Farrowing hut design and sow genotype (Camborough-15 vs 25% Meishan) effects on outdoor sow and litter productivity

J. J. McGlone and T. A. Hicks
Pork Industry Institute, Department of Animal Science and Food Technology, Texas Tech University, Lubbock 79409-2141, USA. john.mcglone@ttu.edu

Performance measures were evaluated for 125 outdoor sows and litters of two crossbred genotypes (Camborough-15 and 25% Meishan) and in two farrowing hut designs (American-style and English-style hut). Contemporary breeding groups of second-parity sows were evaluated in an intensive, outdoor research unit. Sow genotype and hut designs were arranged factorially. Seven complete blocks were evaluated over a 21-wk period. No interactions between environment and genotype were identified for sow and litter productivity. Litters farrowing in the English-style huts weaned 1.5 more (P < .05) piglets per sow (because of a lower preweaning mortality, P = .05) than did litters in the American-style huts. The 25% Meishan weaned 1.7 more (P < .01) pigs per sow than Camborough-15, because of a greater number of piglets born alive. The effects of hut style and genotype were additive and 25% Meishan sows in English-style huts weaned an average (+/- SEM) of 11.1 +/- .83 piglets per sow. The English-style arc hut design may improve outdoor pig production and increase competitiveness of the intensive, outdoor system. The 25% Meishan genotype has potential for increased pigs weaned per litter that must be considered in light of other features of this genotype such as body composition.


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A. K. Johnson and J. J. McGlone
Fender design and insulation of farrowing huts: Effects on performance of outdoor sows and piglets
J Anim Sci, April 1, 2003; 81(4): 955 - 964.
[Abstract] [Full Text] [PDF]


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Copyright © 2000 by the American Society of Animal Science.