Seasonal performance of Zebu cattle under two production systems in South Kordofan, Sudan

Autor:	M. M. M. Ahmed, Babo Fadlalla, A. S. El Wakeel, E. M. Elamin, F. M. El-Hag, M. A. Mekki
Rok vydání:	2003
Předmět:	Economics and Econometrics Animal science Milk yield Herd Ice calving Calf mortality Plant Science Biology General Agricultural and Biological Sciences Zebu General Environmental Science Production system
Zdroj:	Tropical Science. 43:13-21
ISSN:	1556-9179 0041-3291
DOI:	10.1002/ts.82
Popis:	In sedentary and transhumant cattle herds calving cows' weights were significantly different only at six and 12 months after calving. Cows under the sedentary system had the highest weights and those calving in the early dry and rainy seasons had the highest calving weights. Under the sedentary system, cows had the highest milk yields throughout the 12 months after calving and calves had the highest weight gains up to 12 months. Male calves had higher birth weights and weight gains than females. Production system and calving season effects on calf mortality were not significant. Copyright © 2003 Whurr Publishers Ltd
Databáze:	OpenAIRE
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