Valor nutritivo do mandacaru sem espinhos, palma orelha de elefante mexicana e miúda na alimentação de ovinos

• Ano de defesa: 2017
• Autor(a) principal: Silva, Maria Vitória Serafim da
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Brasil; UFRN; PROGRAMA DE PÓS-GRADUAÇÃO EM PRODUÇÃO ANIMAL
• Palavras-chave em Português: Cereus hildmannianus; Forrageiras estratégicas; Nutrição de ruminantes; Nopalea cochenillifera; Opuntia stricta; Semiárido; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::PRODUCAO ANIMAL
• Link de acesso: https://repositorio.ufrn.br/jspui/handle/123456789/25711

This study aimed to evaluate the nutritional value of forage cactus: mandacaru without spine (Cereus hildmannianus K. Schum), mexican elephant ear (Opuntia stricta Haw.) and palm yielded (Nopalea cochenillifera Salm Dyck) in sheep feed. Fifteen crossbred (½ Soinga x ½ Santa Inês) sheep, uncastrated, four months old and average initial body weight of 17.27 kg ± 1.05 kg, housed in metabolism cages, were distributed in a completely randomized experimental design with three treatments and five replicates. Experimental diets were composed of 430.9 g Kg -1 of mandacaru without spines, 525.7 g kg -1 of mexican elephant ear and 492.1 g kg -1 of palm yielded, 194.7 to 233.8 g Kg -1 sage hay, 279.5 to 313.3 g kg - 1 concentrate and 18.4 to 22.0 g kg -1 mineral salt. The experimental period lasted 21 days - 14 days for diet adaptation and seven days for data collection. There was no difference (P> 0.05) for dry matter intake, organic matter intake, ethereal extract intake, neutral detergent fiber intake, total carbohydrates intake, non - fiber carbohydrates intake, total digestible nutrients intake and voluntary water intake between experimental diets. The crude protein intake was influenced (P <0.05) by the experimental diets, with a higher intake by the animals that received the mandacaru treatment without spines (145.10 g day -1). The animals fed palm mexican elephant ear showed higher water intake via the diet and total, averaging 4478.61 g of 1-day water and 4625.94 g water day-1, respectively. There were no differences (P> 0.05) in the digestibility coefficients of dry matter, organic matter, neutral detergent fiber, total carbohydrates, non-fiber carbohydrates and total digestible nutrients between the experimental diets, with mean values of 68.10 %; 69.78%; 56.37%; 65.57%; 73.27%; 84.68% and 65,57% respectively. Behavioral variables, rumination time, feeding efficiency and rumination were not influenced by diets (P> 0.05). Feeding time was higher (P <0.05) by animals fed with the diet composed of mexican elephant ear. Cactaceae, mandacaru without spines, mexican elephant ear and palm yielded have similar nutritive value and can be used in sheep feed.