Intake, digestibility and milk production of dairy goats fed with different fat sources/Consumo, digestibilidade e producao de cabras leiteiras alimentadas com dietas contendo diferentes fontes de lipidios

This study used 12 Saanen goats with BW of 35 kg and daily milk production of 1.2 kg, in order to evaluate the effect of fat supplementation on the intake, digestibility and milk yield. Four animals were fistulated in the rumen for pH observation. The treatments consisted of a control diet and three diets supplemented with faveleira seed, faveleira cake and cotton seed. The data were analyzed in 4 x 4 chi squares, with three repetitions and the statistical analyses by Tukey's test at 5% probability. Fat supplementation decreases the intake of dry matter and of most nutrients, affecting milk yield and the composition of Saanen goat milk. Supplementation with faveleira cake and cotton seeds can be considered as an alternative feed for those animals. Key words: goat milk, seeds, lipid, ruminal flux, Saanen. Foram utilizados 12 animais da raca Saanen, com peso vivo de 35 kg e producao leiteira de 1,2 kg, para avaliacao da suplementacao lipidica sobre o consumo, digestibilidade, producao e composicao do leite e quatro animais fistulados no rumen para observacao do pH. Os tratamentos consistiram de uma dieta-controle e tres dietas suplementadas com semente de faveleira, torta de faveleira e caroco de algodao. Os dados foram analisados em quadrados latinos 4 x 4, com tres repeticoes e as analises estatisticas feitas pelo teste de Tukey a 5% de probabilidade. A suplementacao lipidica diminuiu o consumo de materia seca e da maioria dos nutrientes, com reflexo sobre a producao e composicao do leite de cabras Saanen. A suplementacao com torta de faveleira e com caroco de algodao pode ser considerada uma boa alternativa alimentar para cabras Saanen. Palavras-chave: caprinos leiteiros, graos, lipidios, liquido ruminal, Saanen.