Substituição do Feno de Capim Elefante por Palma Forrageira em dietas para Ovinos

Detalhes bibliográficos
Ano de defesa: 2007
Autor(a) principal: BISPO, Safira Valença lattes
Orientador(a): FERREIRA, Marcelo de Andrade
Banca de defesa: MELO, Airon Aparecido de, GUIM, Adriana
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal Rural de Pernambuco
Programa de Pós-Graduação: Programa de Pós-Graduação em Zootecnia
Departamento: Departamento de Zootecnia
País: Brasil
Palavras-chave em Português:
Área do conhecimento CNPq:
Link de acesso: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6884
Resumo: a study was conducted to determine the effects of replacing elephantgrass with spineless cactus (0, 14, 28, 42 and 56%) as a forage source on intake, ruminal fermentation parameters and total tract nutrient digestibilities. Five male sheep were used in a 5X5 Latin square experiment with 13-day periods (7 days for adaptation and 6 days for data collection). Results showed that intakes of dry matter (DM), organic matter (OM),ether extract (EE), crude protein (CP), total carbohydrate (TC), non-fiber carbohydrate (NFC), and total digestible nutrient (TDN) increased linearly while water intake decreased linearly as the level of cactus in the diet increased. However, intake of neutral detergent fiber (NDF) increased quadratically as the level of cactus in the diet increased. Total tract digestibility of EE, CP, NFC, and NDF were not affected by cactus inclusion rate. However, digestibility of DM, OM and TC increased linearly as the level of cactus in the diet increased. Ruminal pH and NNH3 concentration decreased linearly as the level of cactus in the diet increased. It was concluded that replacing elephant-grass with cactus as a forage source improved feed intake and total tract nutrient utilization.