EFFECT OF DRY PERIOD LENGTH OF FIRST-CALF HEIFERS AND OLDER COWS ON THEIR PERFORMANCE IN THE NEXT PRODUCTION CYCLE.

Autor:	SAWA, Anna, BOGUCKI, Mariusz, NEJA, Wojciech
Předmět:	COWS HEIFERS LACTATION MILK yield STATISTICS PERFORMANCE standards CULLING of animals CATTLE breeding REPRODUCTION
Zdroj:	Journal of Central European Agriculture; 2013, Vol. 14 Issue 2, p341-349, 9p
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu