Dystocia, stillbirth, gestation length, and birth weight in Holstein, Jersey, and reciprocal crosses from a planned experiment

Journal of Dairy Science
K M OlsonS P Washburn

Abstract

Holstein and Jersey cows were mated to 4 Holstein (H) bulls and 4 Jersey (J) bulls to create HH, HJ, JH, and JJ genetic groups (sire breed listed first) in a diallele crossbreeding scheme. Calvings (n = 756) occurred in research herds in Virginia, Kentucky, and North Carolina with 243, 166, 194, and 153 calvings in the HH, HJ, JH, and JJ groups, respectively. Birth weights (BW), dystocia scores (0 for unassisted and 1 for assisted), and stillbirth (0 for alive or 1 for dead within 48 h) were recorded at calving. Gestation lengths (GL) were determined from breeding dates. An animal model was used to analyze BW and GL, and an animal model with logistic regression was used for dystocia and stillbirth. Fixed effects considered for model inclusion were genetic group, herd-year-season, sex, parity (primiparous or multiparous), twin status, and gestation length. Genetic group and effects significant in the model building process were kept in the final model for each trait. Heifer calves had lower BW, shorter GL, and had a lower odds ratio (0.53) for dystocia than bull calves. Twins had lower BW, shorter GL, were 3.86 times more likely to experience dystocia, and 7.80 times more likely to be stillborn than single births. Primiparous co...Continue Reading

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Citations

Oct 4, 2012·Animal : an International Journal of Animal Bioscience·R FouzF J Diéguez
Apr 1, 2012·Asian-Australasian Journal of Animal Sciences·Hadi AtashiAnise Asaadi
Feb 3, 2016·Journal of Dairy Science·U S SorgeB Heins
Dec 19, 2017·Journal of Dairy Science·D L RenaudT F Duffield
Apr 24, 2010·Journal of Dairy Science·B J HeinsJ G Linn
Jan 1, 2013·Animals : an Open Access Journal From MDPI·John F MeeMichael Doherty
Mar 12, 2020·Tropical Animal Health and Production·Szabolcs BenePéter Nagy
Jan 28, 2012·Journal of Dairy Science·K L BrownF C Gwazdauskas
Dec 6, 2018·Veterinary Sciences·Ricardo ZanellaMarcos Vinicius G B da Silva
May 30, 2017·Journal of Dairy Science·D L RenaudD F Kelton
Oct 17, 2017·The Journal of Reproduction and Development·Yutaka Hashiyada

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