Yield and characteristics of the components non-carcass sheep fed with rations based on sugar-cane plus urea

Abstract

This work evaluated the effect of the substitution of the tifton hay for sugar-cane in natura plus urea (0, 33, 66 and 100%) on of sheep. Thirty two lambs were used WDRP (without defined racial pattern), castrated live weight initial of 20,4 ± 1,8kg and four months old, were fed full in individual stalls. Experimental diets contained 2.6 Mcal of metabolizable energy (EM)/kg of dry mater and 14% of crude protein (PB), with relationship roughage:concentrate of 45:55. The animals were slaughtered after the period of 54 days of feeding. A randomized block design, with eight repetitions, was used. Analysis of regression were realized in function of the sugar-cane levels on the diets. All the all organs, stomach and intestines do not influenced by replacement of the tifton hay by sugar-cane on the diets, except fatty deposits (linear effect). The use of the sugar-cane and urea on the sheep feeding can be adopted as exclusive roughage without altered the characteristics of the components non carcass.