Genetic relationships of fertility traits with test-day milk yield and fat-to-protein ratio in tropical smallholder dairy farms

Animal Science Journal = Nihon Chikusan Gakkaihō
S BuabanK Kuchida

Abstract

The test-day milk fat-to-protein ratio (TD-FPR) could serve as a measure of energy balance status and might be used as a criterion to improve metabolic stability and fertility through genetic selection. Therefore, genetic parameters for fertility traits, test-day milk yield (TD-MY) and TD-FPR, as well as, their relationships during different stages of lactation, were estimated on data collected from 25 968 primiparous Thai dairy crossbred cows. Gibbs sampling algorithms were implemented to obtain (co)variance components using both univariate linear and threshold animal models and bivariate linear-linear and linear-threshold animal models with random regression. Average TD-MY and TD-FPR were 12.60 and 1.15. Heritability estimates for TD-MY, TD-FPR and selected fertility traits ranged from 0.31 to 0.58, 0.17 to 0.19 and 0.02 to 0.05, respectively. Genetic correlations among TD-FPR and TD-MY, TD-FPR and fertility traits, and TD-MY and fertility traits ranged from 0.05 to -0.44, from -0.98 to 0.98 and -0.22 to 0.79, respectively. Selection for lower TD-FPR would decrease numbers of inseminations per conception and increase conception at first service and pregnancy within 90 days. In addition, cow selection based only on high milk p...Continue Reading

References

Oct 1, 1989·Journal of Dairy Science·J I Weller
Nov 13, 1998·Journal of Dairy Science·C M Dematawewa, P J Berger
Oct 13, 1999·The Journal of the Royal Society for the Promotion of Health·M C Azubuike, J E Ehiri
Feb 5, 2000·Journal of Dairy Science·M J de Vries, R F Veerkamp
Feb 18, 2003·Veterinary Research·Ruurd JorritsmaJos P T M Noordhuizen
Jan 27, 2004·Journal of Dairy Science·E WallM P Coffey
Dec 17, 2010·Tropical Animal Health and Production·Shahin Eghbalsaied
Dec 25, 2010·Journal of Dairy Science·W BoonkumJ Sanpote
May 11, 2011·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·L H BuchA C Sørensen
Jan 10, 2012·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·J Jamrozik, L R Schaeffer
Jan 4, 2013·Ecology of Food and Nutrition·Lauren E FinzerDorairaj Prabhakaran

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Citations

Mar 7, 2012·Preventive Veterinary Medicine·A MadouasseM J Green
Sep 16, 2016·Animal Science Journal = Nihon Chikusan Gakkaihō·Somsook PuangdeeMongkol Thepparat

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