Multiple-lactation random regression test-day model for Polish Black and White cattle

Abstract

T. Strabel, E. Ptak, J. Szyda, J. Jamrozik Agricultural University of Poznan, Department of Genetics and Animal Breeding, Wolynska 33, 61-627 Poznan, Poland; e-mail: [e-mail] Agricultural University of Krakow, Department of Genetics and Animal Breeding, Al. Mickiewicza 24/28, 30-059 Krakow, Poland Agricultural University of Wroclaw, Department of Genetics and Animal Breeding, ul. Kozuchowska 7, 51-631 Wroclaw, Poland Centre for Genetic Improvement of Livestock, Department of Animal and Poultry Science, University of Guelph, Guelph, ON, N1G 2W1, Canada