Genetic and breeding studies on crossbreds between local Black-and-White and Holstein-Friesian cattle. Pt. 1. Genetic structure of herds
1993
Filistowicz, A. | Juszczak, J. | Szyszkowski, L. | Kuczaj, M. (Akademia Rolnicza, Wroclaw (Poland))
The genetic structure of 46 dairy cattle herds in Poland was determinated. The correlation coefficients within herd-year groups and between sires were estimated. Changes of number of different genotype crossbred cows in herds during 3 years were analysed. Effect of the genetic structure of the herd on the milk production level in heifers was stated
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Central Agricultural Library