Effects of sow nutrition during gestation on within-litter birth weight variation: a review

Animal : an International Journal of Animal Bioscience
P H R F CamposE F Knol

Abstract

The increasing demand for efficiency in pork production requires great specialization of all sectors involved in this activity. In this context, the development of strategies that could reduce undesirable traits related with negative effects on piglet survival and postnatal growth and development are essential for the pig industry. Currently, special attention is given to variation in birth weight, as some evidences suggest an increased within-litter birth weight variation in modern sows. This variation has been shown to be associated with preweaning mortality, variable weights at weaning and deteriorated growth performance, which results in economic losses and lower efficiency. Therefore, understanding the factors that can influence the events that occur during gestation and that have an impact on the fetal growth and development are important to achieve better efficiency and also to develop strategies that can be used to achieve increased within-litter uniformity of piglet birth weight. This study concludes that even at a given placental size, fetal growth may vary because of differences in placental vascularization and efficiency. Feeding extra feed or energy during late gestation only marginally improves birth weight, and p...Continue Reading

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Citations

Jul 28, 2013·Journal of Animal Science and Biotechnology·Sung Woo KimYan Zhao
Apr 4, 2015·Journal of Animal Science and Biotechnology·Robert R Kraeling, Stephen K Webel
Nov 12, 2014·Animal : an International Journal of Animal Bioscience·J G Madsen, G Bee
Jul 22, 2017·Asian-Australasian Journal of Animal Sciences·Morakot NuntapaitoonPadet Tummaruk
Mar 23, 2019·Journal of Animal Physiology and Animal Nutrition·Miriam M J van RietGeert P J Janssens
Jan 27, 2019·Current Protein & Peptide Science·Dongsheng CheHailong Jiang
Jan 29, 2020·Journal of Animal Physiology and Animal Nutrition·Rennan Herculano Rufino MoreiraMárvio Lobão Teixeira de Abreu
Jan 30, 2020·Animal : an International Journal of Animal Bioscience·T HanO A T Peltoniemi
Jan 14, 2020·Animal : an International Journal of Animal Bioscience·C R PierozanC A da Silva
Aug 7, 2019·Animals : an Open Access Journal From MDPI·Maiken N EngelsmannCharlotte Amdi
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Dec 25, 2019·Journal of Animal Physiology and Animal Nutrition·Rennan Herculano Rufino MoreiraMárvio Lobão Teixeira de Abreu
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Sep 7, 2021·Reproduction in Domestic Animals = Zuchthygiene·Zheng AoZicong Li

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