ABSTRACT. The cashew pseudo fruit can be used to animal feeding in tropical and subtropical countries as Brazil, Ivory Coast and Vietnam. Thus, our objective was to evaluate the intake, digestibility of nutrients and nitrogen balance of dehydrated cashew apple by-product to sheep. The experiment was carried out with 24 sheep in a completely randomized design with the treatments distributed in a 4 x 2 factorial scheme to test the inclusion (11, 21, 28 and 33% dry matter basis) and the grinding sizes (3 and 19 mm diameter) of dehydrated cashew apple by-product. To grinding sizes there was no effect to intake and digestibility, suggesting the use of dehydrated cashew apple by-product either finely or coarsely milled. The inclusion up to 33% of dehydrated cashew apple by-product inclusion did not affect voluntary intake and nitrogen balance. However, when including above 21%, there was a reduction of ether extract digestibility and more than 28% reduced dry matter and organic matter digestibility.
Objetivou-se determinar o consumo de nutrientes e os aspectos quantitativos da carcaça de ovinos de diferentes grupos genéticos com dietas com ou sem farelo de castanha de caju. Foram usados dezoito ovinos com peso inicial médio de 20,1kg em um delineamento inteiramente casualizado, em esquema fatorial 3 x 2 (três cruzamentos e duas dietas diferentes). A inclusão do farelo de castanha de caju influenciou (P<0,05) o consumo de nutrientes. Diferenças de consumo entre as raças resultaram em maior consumo para os animais mestiços Dorper x sem padrão racial definido (SPRD), seguidos pelos mestiços Somalis x SPDR e pelos mestiços Santa Inês x SPRD. No entanto, não houve diferenças entre os genótipos em relação à dieta controle. O ganho de peso médio diário foi menor para as raças a cuja dieta foi adicionado farelo de castanha de caju. Os diferentes cruzamentos e as dietas não afetaram a conversão alimentar. A inclusão de farelo de castanha de caju nas dietas reduziu o peso de carcaça fria, bem como o peso das costelas. A adição de farelo de castanha de caju diminui o consumo de alimentos e o rendimento de carcaça. Entre os cruzamentos avaliados neste estudo, os ovinos mestiços Dorper x SPRD apresentam maior taxa de ganho de peso médio diário.
This work aimed to determine the nutrient intake and quantitative aspects of sheep carcass from three different genetic groups. Eighteen animals with initial average body weight of 20.1kg were used in a completely randomized design, in a factorial 3x2 scheme (three different crossbreeds - 6 F1Dorper x non defined breed, 6 F1Somalis x non defined breed and 6 F1Santa Inês x non defined breed versus two diets). The diets fed to the animals were formulated with or without cashew nuts. The inclusion of cashew nut meal in the diet influenced nutrient intake. Differences of intake among the animal groups were observed as higher intake for F1Dorper x non defined breed (NDB), followed by F1Somalis x NDB and for F1Santa Inês x NDB. However, the control diet produced no difference among these genotypes. The average daily gain was lower for both crossbreeds when cashew nut meal was added in the diets. The evaluated crossbreeds and diets did not affect the feed:gain ratio. The carcasses analyses showed that the inclusion of cashew nut meal in the diets reduced the cold carcass weight and the rib weight. The addition of cashew nut meal in the diets for lambs reduces food intake and carcass yield. The crossbreed F1Dorper x NDB presented the higher rate of average daily gain.