Prediction of greenhouse gas emissions from large ruminants in mixed farming system of Southeast Ethiopia

Abstract The estimated enteric methane EFs for adult males used for breeding & for other purposes, adult multipurpose cows, adult males used for draught, growing males, growing females, calves aged 6monts-1 year (male and female) and calves aged 3 years old and those from adult males used for draught (3–10 years old). The estimated CH 4 emissions from manure of dual-purpose cattle were significantly (P < 0.001) different between lowland agro-ecology and other agro-ecologies. The estimated nitrous oxide concentrations for adult males used for breeding and other purpose, adult males used for draught, adult multipurpose cows, growing males, growing females, calves aged 6 month–<1 year (male and female) and calves aged < 6 months (male and female) were significantly (P < 0.001) different between the cattle subcategories. The estimated nitrous oxide concentration in dual-purpose cattle were significantly (P < 0.001) greater for lowland agro-ecology than for other agro-ecologies.