Sow line differences in heat stress tolerance expressed in reproductive performance traits

Journal of Animal Science
S BloemhofE F Knol

Abstract

The objectives of this study were 1) to investigate if there were differences in the relation between temperature and reproductive performance traits in 2 different sow lines, a Yorkshire line producing mainly in temperate climates and a Large White line producing mainly in warm climates, and 2) to determine the upper critical temperature (UCT) for the reproductive performance of these 2 lines. Sows are exposed to heat stress when temperature exceeds the UCT of the thermo-neutral zone. Data included 32,631 observations on reproductive performance from 11,935 sows on 20 farms in Spain, collected from 2003 to 2005. Sows belonged to 2 different purebred sow lines, named D (Yorkshire sow line, producing mainly in temperate climates) and I (Large White sow line, producing mainly in warm climates). Only first insemination records per parity were used and were combined with the maximum outside temperature at day of insemination. Upper critical temperatures were studied for 3 reproduction traits: farrowing rate (0 or 1), litter size (range from 1 to 25), and total number of piglets born per first insemination (combination of farrowing rate and litter size, range from 0 to 25). Data were corrected for fixed effects, which included parit...Continue Reading

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Citations

Mar 23, 2012·Animal : an International Journal of Animal Bioscience·J W M MerksE F Knol
May 23, 2014·Animal : an International Journal of Animal Bioscience·K WegnerM Gauly
Aug 25, 2012·TheScientificWorldJournal·Huda Yahia HamidNoordin Mohamed Mustapha
Sep 12, 2014·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·M Dolores GómezA Molina
Jul 4, 2015·Animal Reproduction Science·Yunxiang ZhaoYaosheng Chen
May 3, 2014·Preventive Veterinary Medicine·Ryosuke Iida, Yuzo Koketsu
Feb 17, 2015·The Onderstepoort Journal of Veterinary Research·Leana Janse van Rensburg, Brian T Spencer
Dec 28, 2017·Tropical Animal Health and Production·Morakot Nuntapaitoon, Padet Tummaruk
Aug 15, 2017·Journal of Animal Science·H A Mulder, H Rashidi
Apr 24, 2019·Journal of Veterinary Pharmacology and Therapeutics·Miao LiZhoumeng Lin
Jul 2, 2017·Molecular Reproduction and Development·Jason W RossLance H Baumgard
May 1, 2020·Animal : an International Journal of Animal Bioscience·J Y MutuaA M O Notenbaert
Mar 14, 2013·Journal of Animal Science·S BloemhofE H van der Waaij

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