The effect of level of non-degradable protein in diet on fattening parameters and digestibility of nutrients in lambs
2010
Ružić-Muslić, D., Institute for Animal Husbandry, Belgrade - Zemun (Serbia) | Petrović, M.P., Institute for Animal Husbandry, Belgrade - Zemun (Serbia) | Bijelić, Z., Institute for Animal Husbandry, Belgrade - Zemun (Serbia) | Žujović, M., Institute for Animal Husbandry, Belgrade - Zemun (Serbia) | Perišić, P., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Maksimović, N., Institute for Animal Husbandry, Belgrade - Zemun (Serbia)
Objective of this study was to establish the optimal level of non-degradable protein in diets for weaned and intensively fattened lambs. Experiment was conducted on 60 lambs of F1 generation: Pirot Pramenka x Wuerttemberg x Ile de France, weaned at the age of 60 days and divided into three groups. The effect of use of three concentrated mixtures which differed in the share of protein non-degradable at the level of rumen: 43% (1st), 51% (2nd), and 58% (3rd)was studied. The highest average daily gain (0.227 kg) was realized by lambs fed diet containing 58% NP. The best conversion of DM (3.30 kg/kg gain) was realized by lambs on treatment 3. Different levels of non-degradable protein (43:51:58%) had no significant effect on level of intake of total protein. With the increase of share of non-degradable protein a tendency of increase of fat digestibility was registered.
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