Izvorni znanstveni članak
EFFECT OF SOME NONGENETIC FACTORS ON LACTATION OF COWS 2. Influence on milk content during lactation
Ivan Jakopović
; Poljoprivredni centar Hrvatske - Stočarski selekcijski centar, Zagreb, Republika Hrvatska
Sažetak
Research on the effect of nongenetic factors on the amount of milk during lactation was carried out based on the data of the amount of milk in 172.319 lactation controls. The data were grouped according to months and weeks in order to estimate the effect of each factor on the amount of milk during lactation. The effect of factors observed per groups and amount of milk was nearly always bigger in the first part of lactation. This was not the case only in the effect of some classes of servicing period since they were more prominent in the second part of lactation.
Ključne riječi
Hrčak ID:
162421
URI
Datum izdavanja:
27.9.1992.
Posjeta: 481 *