The genetic parameters for milk, fat and protein yields in Holstein cows

Rodica Stefania Pelmus, Horia Grosu, Mircea Cătălin Rotar, Mihail Alexandru Gras, Cristina Lazăr, Florin Popa


The aim of this study was to analyse methodology of genetic parameters estimation and breeding value prediction for milk, fat and protein yield in the first lactation of Holstein cattle using Best Linear Unbiased Prediction procedure- Restricted Maximum Likelihood method with individual animal model. The cows with records in first lactation were from experimental farm of National Research-Development Institute for Animal Biology and Nutrition Balotesti. The genetic parameters were estimated with Restricted Maximum Likelihood method using Individual Animal Model. The estimates heritability were 0.249 for milk yield, 0.339 for fat yield and 0.315 for protein yield. The data were analysed with R software. The breeding values of the best Holstein cows for milk yield ranged from 21.13 to 176.97 l, for fat yield ranged from 5.178 to 35.34 kg and for protein yield ranged from 5.516 to 25.155 kg.


breeding value; animal model; heritability, cows

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Grosu, H., Schaeffer, L., Oltenacu, P.A., Norman, D., Powell R., Kremer V., Banos, G., Mrode R., Carvalheira J., Jamrozik J., Draganescu C., Lungu S., History of genetic evaluation methods in dairy cattle, The Publishing House of the Romanian Academy, Bucharest, 2013

Grosu, H., Lungu, S., Oltenacu, P.A., Drăgănescu, C., Mateescu, R., The prediction of the breeding value in cattle, Ceres, Bucharest, 2019

Swalve, H., Van Vleck, L.D., Estimation of genetic (co)variances for milk yield in first three lactation using an animal model and restricted maximum likelihood, J. Dairy Sci., 1987,70, 842-849

Van Vleck, L.D., Dong, M.C., Genetic (co)variances for milk, fat and protein yield in Holstein using an animal model, J. Dairy Sci., 1988, 71, 3040-3046

Dong, M.G., Van Vleck L.D., Wiggans, G.R., Effects of relationship on estimation of variance component with an animal model and restricted maximum likelihood, J. Dairy Sci., 1988, 71, 3047-3052

Albuquerque, L.G., Keown, J.F., Van Vleck, L.D., Covariances among lactation yield for milk, fat and protein, using an animal model. In: Proceeding of the 5th World Congress of Genetic Applied to Livestock Production, 7-12 August, 1994, Guelph, Canada

Albuquerque, L.G., Dimov, G.M., Keown J.F., Van Vleck, L.D., Estimates using an animal model of (co)variances for yield of milk, fat and protein for the first lactation of Holstein cows in California and New York, J. Dairy Sci., 1995, 78, 1591-1596

Mashhadi, M.H., Kashan, N.E.J., Nassiry, M.R., Torshizi R.V., Prediction breeding value and genetic parameter in Iranian Holstein bulls for milk production traits, Pakistan Journal of Biological Sciences, 2008, 11, 1, 108-112

Dedkova, L., Wolf, J., Estimation of genetic parameters for milk production traits in Czech dairy cattle population, Czech J. Anim. Sci., 2001, 46, 298-307

Dematawewa, C.M.B., Berger P.J., Genetic and phenotypic parameters for 305-day yield, fertility and survival in Holsteins, J. Dairy Sci., 1998, 81, 2700-2709

Campos, R.V., Cobuci, J.A., Kern, E.L., Costa, C.N.,McManus C.M., Genetic parameters for linear type traits and milk, fat and protein production in Holstein cows in Brazil. Asian Australas. J. Anim. Sci, 2015, 28, 4, 476-484

Zaabza, H.B., Gara, A.B., Hammani, H., Ferchichi, M.A., Rekik, B., Estimation of variance components of milk, fat and protein yield of Tunisian Holstein dairy cattle using Bayesian and REML methods, Arch. Anim. Breed, 2016, 59, 243-248

Cho, C., Cho, K., Choy, Y., Choy, J., Choi, T., Park B., Lee, S., Estimation of genetic parameters for milk production traits in Holstein Dairy Cattle. Journal of Animal Science and Technology, 2013, 55, 1, 7-11

Rushdi, H.E., Ibrahim, M.A.M.,Shaddad, N.Q., Nigru, A.A., Estimation of genetic parameters for milk production traits in a herd of Holstein Friesian cattle in Egypt. J. Animal and Poultry Prod., Mansoura Univ., 2014, 5, 5, 267-278

Padilha, A.H., Cobuci, J.A., Daltro, D.C., Neto, J.B., Reliability of breeding values between random regresssion and 305 day lactation model, Pesq. Agropec. Bras., Brasilia, 2016,51, 11, 1848-1856

Sawalha, R.M., Keown, J.F., Kachman, S.D., Van Vleck, L.D., Genetic evaluation of dairy cattle with test-day model with autoregressive covariance structure and with 305d model, Journal of Dairy Science, 2005, 88, 3346-3353


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