Coeficientes de digestibilidade dos nutrientes de uma ração para coelhos de diferentes raças

• Autor(a) principal: Sales, João José de Mesquita
• Data de Publicação: 2021
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• dARK ID: ark:/83112/0013000024c3z
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/62414
• topic: Cunicultura; Digestão; Grupos genéticos

The Brazilian rabbit rearing for butchering may be composed of multiple rabbit breeds and their crossbreeds, differing as to the utilization of the provided feed. This work aims to determine the digestibility coefficients of dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF) and mineral matter (MM) of a commercial feed given to rabbits of varied breeds still growing. This study observed 18 rabbits of three different breeds: Chinchilla, New Zealand White and F1 (New Zealand White X Californian), 3 males and 3 females each, about 70 day aged with about 1543±196g, distributed in an entire casual organization, with 3 treatments and 6 repetitions. The animals were accommodated in galvanized wire cages individually, with water dispenser, feeder and nylon meshes on the bottom of the cages in order to collect their feces. The rabbits had complete access to water and feed, that were recorded the consumed quantity and the excreted one. The feces were collected and weighed twice a day; and at the end of the collection period, feces and feed were processed for further analyses of dry matter, crude protein, ether extract, neutral detergent fiber and mineral matter to calculate the digestibility coefficients. The digestibility coefficients of dry matter, neutral detergent fiber and acid detergent fiber were higher (P<0,05) in F1 (Californian X New Zealand White) rabbits. There was no difference in the digestibility coefficients of the other nutrients. It is concluded that F1 (Californian X New Zealand White) rabbits presented a higher digestibility coefficient of dry matter, crude protein, neutral detergent fiber and acid detergent fiber than Chinchilla and New Zealand White rabbits.