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Albert Johannes Buitenhuis

Comparison of Genetic Parameters Estimation of Fatty Acids from Gas Chromatography and FT-IR in Holsteins

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Fourier transform infrared (FT-IR) is routinely used in the milk recording system and IR-based solutions are therefore attractive to ensure the full potential of genomic selection data in future breeding programs. Today, IR-based models can be used to predict a wide range of milk traits, and their genetic parameters. However, IR-predicted phenotypes for detailed milk composition are often based on their correlation to other traits in a given data set rather than on direct predictions. Here, genetic parameters for individual milk fatty acids were estimated based on either IR-predicted phenotypes or on fatty acids data measured from gas chromatography in 371 Danish Holstein cows. Results showed similar heritability estimates and strong genomic correlations for most of the fatty acids. However, for some fatty acids, the choice of data affected the genetic parameter estimation, which may be due to indirect calibration models.
OriginalsprogEngelsk
Udgivelsesår17 aug. 2014
Antal sider3
StatusUdgivet - 17 aug. 2014
Begivenhed10th World Congress on Genetics Applied to Livestock Production (WCGALP) - The Westin Bayshore, 1601 Bayshore Drive, Vancouver, BC V6G 2V4, Vancouver, Canada
Varighed: 17 aug. 201422 aug. 2014
Konferencens nummer: 10th

Konference

Konference10th World Congress on Genetics Applied to Livestock Production (WCGALP)
Nummer10th
LokationThe Westin Bayshore, 1601 Bayshore Drive, Vancouver, BC V6G 2V4
LandCanada
ByVancouver
Periode17/08/201422/08/2014

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