TENAW TEMESGEN*, BERNABAS AYENESHET AND YIHUN AMAN
Department of Animal science, Assosa University, Ethiopia
Department of Animal science, Woldia University, Ethiopia
Department of Animal production and Extension, University of Gondar, Ethiopia
*(e-mail : tenawtemesgen84@gmail.com)
(Received : 15 September 2021; Accepted : 29 September 2021)
SUMMARY
An environmental impact of livestock production has been given significant attention over the last few years. Besides increasing animal production and productivity, feeds are used to mitigate enteric methane production in the animal production sector. Enteric methane produced in the gastrointestinal tract of animals has direct effect on green house gas released from the livestock production. Enteric methane mitigation practices for animal production have been studied. Supplementation of roughage feed, concentrated feeds, addition of feed additives to animal feed are the major practice used to mitigate the enteric methane production from animal production sector. Decreasing roughage proportion with concentrate ration, while increasing the amount of crude fat (ether extract, EE) in dairy diet reduces enteric methane emissions. In the back knowledge, methane is mitigated through feeding animals diets with lipids due to its effectiveness in reducing CH4, environmental safety, and animal health. Methane reducing strategies have their role to retention of energy in the animal body by dietary feed additives; plant extracts and chemical supplementation have been conducted to address their potential to reduce methanogenesis in the feed metabolism. Enteric methane emissions may be effectively reduced by manipulation of natural gastro-intestinal micro-floras and other micro-biota with various dietary supplementation and improved animal production efficiency.
Key words:Dietary manipulation, enteric methane, livestock sector