Effect of compensation with non-protein nitrogen of a protein deficiency in a diet for young fattening sheep, in relation to bone metabolism

Florescu, S.; Paraschiv, S.; Rarinca, C.; Visinescu, N.; Stavri, J.; Florea, E.; Prundeanu, I.

Lucrarile Stiintifice ale Institutului de Cercetari pentru Nutritie Animala 7: 81-97


Accession: 000348544

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From 65 days old 3 groups of 30 Corriedale sheep weighing 20.27 to 20.41 kg were given for 94 days a diet normal in protein or with protein reduced by 23% of normal but with N content kept normal by the addition of 20 or 30% ammoniated maize cobs. At 159 days old mean weight in the 3 groups was 42.19, 40.05 and 39.38 kg; P in serum was 9.06, 7.19 and 8.51 mg/100 ml but Ca in serum did not differ between groups. Development and composition of bones were similar for the 3 groups. There was no difference in digestibility of Ca, P or N or principal nutrients between groups. During the 94 days sheep given ammoniated cobs ate concentrate 2.17 to 2.37 kg/kg gained.