Short communication: Principal components and factor analytic models for test-day milk yield in Brazilian Holstein cattle

A total of 46,089 individual monthly test-day (TD) milk yields (10 test-days), from 7,331 complete first lactations of Holstein cattle were analyzed. A standard multivariate analysis (MV), reduced rank analyses fitting the first 2, 3, and 4 genetic principal components (PC2, PC3, PC4), and analyses...

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Veröffentlicht in:	Journal of dairy science 2012-04, Vol.95 (4), p.2157-2164
Hauptverfasser:	Bignardi, A.B., El Faro, L., Rosa, G.J.M., Cardoso, V.L., Machado, P.F., Albuquerque, L.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal productions Animals Biological and medical sciences Cattle - genetics Cattle - physiology covariance cows Dairying - methods factor analytic model Female Food industries Fundamental and applied biological sciences. Psychology genetic correlation Genetic Variation heritability Holstein lactation Lactation - genetics Milk and cheese industries. Ice creams milk yield Multivariate Analysis Quantitative Trait, Heritable reduced rank model Regression Analysis Terrestrial animal productions variance Vertebrates
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