Effect of dry season supplementation of Sanga cattle in Zambia.
作者信息
Smith R, Pegram R G, Burt S, Killorn K J, Oosterwijk G, Paterson A, Wilsmore A J
机构信息
FAO/DANIDA Studies on the Economic Impact of Ticks in Zambia Project, Lusaka, Zambia.
出版信息
Trop Anim Health Prod. 1991 May;23(2):103-5. doi: 10.1007/BF02361192.
PMID:1858162
Abstract
Supplementation of lactating Sanga cows in central Zambia with low cost crop residues and urea-mineral licks resulted in significant increases in milk offtake (79%), total daily milk (86%), and daily liveweight gain of their calves (86%). At 1988 market prices the value of the additional milk (ZK54.00) and of liveweight of both cow and calf (ZK189.00) over the 13 weeks exceeded the estimated costs of inputs by ZK180.00.
摘要
Zotero 插件