1Department of Animal Science, Ahmadu Bello University, Zaria, Nigeria
2National Animal Production Research Institute, Shika, Zaria, Nigeria
Receive Date: 14 May 2011,
Revise Date: 15 July 2011,
Accept Date: 21 July 2011
Greenhouse gases have been of serious global concern to environmentalists. Enteric ruminal fermentation and manure are seen to be responsible for global warming. Based on a better understanding of positive tan-nin effects on ruminant nutrition, the feeding value of browse trees and shrubs containing tannin, their roles on methanogenic rumen microbes in overcoming the production of enteric fermentation gases and the methods of efficient manure handling are presented in this review.
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