Rearing suckling Polish Lowland lambs on creep feed with different protein levels
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The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
Publication date: 2000-05-08
J. Anim. Feed Sci. 2000;9(2):297–308
Four groups of 44 suckling lambs (30 male and 14 female) were given supplementary feeds: meadow hay and a concentrate with barley containing: 162, 135 or 103 g crude protein in dry matter (groups H, M and L, respectively) or a mixture with oats, containing 138 g crude protein, group C. Restricting crude protein in the mixture to about 14% in DM did not have a detrimental effect on the growth of lambs, but when the mixture containing about 10% protein was given, the body weight gain of male lambs significantly declined. From day 28 of life to weaning at 89-93 days, the body weight gains of ewes did not differ among groups and equaled 120-132 g per day, while male lambs gained 142a, 147a, 126ab and 115b g (P<0.05) daily in groups C, H, M and L, respectively. The intake of dry matter from creep feed by suckling lambs was markedly lower than given in the IZ standards.