Utilização de feno ou silagem de maniçoba em substituição ao feno de Tifton 85 na alimentação de ovinos

Abstract

The objective was to evaluate the subsitution of Tifton 85 hay (Cynodon sp.) For hay or silage (Manihot sp.) In diets without defined breed growing on weight gain, carcass yield and commercial cuts. We used 24 (twenty four) animals, with initial weight of 19.77 ± 1.95 kg and average age of six months, distributed in a randomized block design. The total duration of the experiment was 71 days, 15 days for diet adaptation and 56 for data collection. There was no difference in crude protein (P> 0.05) difference was found for the consumption of neutral detergent fiber between treatments (P <0.05) with lower consumption found for treatment with silage Maniçoba. Animals fed diets containing hay maniçoba had higher dry matter intake (P <0.05). Weight gain, feed conversion ratio was similar among treatments. The mean weight gain was 153.3, 156.9, and 135.3 g / day, respectively, for diets containing Tifton hay, hay and silage maniçoba. There was no significant difference (P> 0.05) for carcass weight and yield, loss of cooling (LC) and true yield (RV) between treatments. There was no difference in the yields of cuts (%) by the use of hay or silage to replace Maniçoba of Tifton. There was also no significant difference (P> 0.05) for the morphometric measurements of carcass. The hay and silage can replace Maniçoba Tifton hay in sheep feeding finishing without compromising weight gain, feed conversion, carcass yield and carcass characteristics.