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. 2019 Apr 11;9(2):33–44. doi: 10.1093/af/vfz005

Figure 2.

Figure 2.

Measurements of production efficiency. (A) Feed efficiency and methane emissions per kilogram of milk of an average dairy sheep (50 kg of body weight), assuming dry matter intake (DMI) intake and energy requirements estimated with the Small Ruminant Nutrition System model (Cannas et al., 2007; Tedeschi et al., 2010). (B) Whole farm emissions of methane per Mcal of milk metabolizable energy (ME) per head from semi-extensive and extensive dairy sheep and dairy goats farms of Sardinia, Italy (Atzori A.S., Lunesu M.F, Cannas A., unpublished data from the project Forage4Climate; EU LIFE+15).