Desempenho produtivo de vacas Sindi alimentadas com dietas à base de palma forrageira associada a diferentes fontes de fibra

Abstract

The objective was to evaluate the production and composition of milk from cows Sindhi, fed palm enriched with urea associated with different sources of fiber. The treatments consisted of different fiber sources: elephant grass, corn stover, hay aerial part of cassava, sugar cane bagasse in natura and sugar cane bagasse hydrolyzate. Five cows Sindi, with average body weight of 265 kg, producing an average of 4.95 kg of milk per day. The animals were arranged in a Latin square design, 5 × 5. Were determined consumption of matter and its constituents, milk production, milk fat, protein, lactose, density, nonfat dry. The cactus can be associated with different forage in diets for lactating cows, however, enriched with urea plus palm, elephant grass, corn straw, hay aerial part of cassava or sugar cane bagasse in natura have higher (P <0.05) milk yield 5.24, 6.09, 4.76 and 4.62 kg, respectively, compared with those fed palm enriched with urea plus sugar cane bagasse hydrolyzate with an average production of 4.04 kg, not (P> 0.05) having, however variation for components of milk. The dry matter intake was lower for treatments where it used the bagasse hydrolyzate and fresh compared to the other treatments.