Milk capacity of Black and White cattle depending on genetic and paragenetic factors
1999
Petrovic, M.M. | Lazarevic, R. | Aleksic, S. | Miscevic, B. | Nikitovic, N. (Institute for Animal Husbandry, Belgrade - Zemun (Yugoslavia))
The investigations comprised variations of productive parameters of milk capacity of Black and White cattle depending on the Holstein-Friesian gene proportion. The investigation included 2400 cows in 5100 lactations. Mathematically statistical analysis of data has been carried out by the use of linear methods with the fixed influence, by means of the Least Squares method (LS method). Genotype, herd, lactation and calving season caused a highly significant deviation in milk and milk fat yields (P0.01). Milk fat content did not vary significantly under the influence of these factors (P0.05).
显示更多 [+] 显示较少 [-]