Avaliação nutricional e função renal de ovinos alimentados com feno de erva-sal (Atriplex nummularia L) e farelo de milho em substituição a palma forrageira (Opuntia fícus-indica Mill) / Evaluation nutricional and renal function of ovinos fed with hay of herb-salt (Atriplex nummularia L) and bran of corn in substitution the cactus (Opuntia fícus-indicates Mill)

AUTOR(ES)

Renaldo Fernandes Sales da Silva Araújo

DATA DE PUBLICAÇÃO

2009

RESUMO

Twenty sheep were used, adults, whole, without defined racial pattern, with medium alive weight of 19 kg. The animals were housed in individual stalls, provided of feeding, drinking fountain and saltcellar. The experimental period had 15 days for adaptation the facilities and evaluation of the physiologic conditions of the animals and 30 days for consumption evaluation, digestibility and renal function. The treatments consisted of the cacut substitution for atriplex hay and corn bran in the levels of hay of 0,0; 14,3; 30,5; 57,2 and 82,7%. The diets were offered twice a day(9:00 and 15:00 hours), in form of complete ration, being adjusted daily in function of the consumption of the previous day, allowing surpluses of 20%. During the collection period samples of the victuals were removed, of the water, of the surpluses, of the feces, of the urine and blood of the animals. The completely randomized design with five diets and four repetitions for treatment. The consumption of DM, NDF, CP and OM was influenced by the substitution of the cactus it forages for atriplex hay. There was not significant difference of weight earnings among the animals distributed in theexperimental diets. The absorption and the retention of K depend on the concentrations of the Na in the diet. Diets composed exclusively of palm and soy needs a suplementação of In Na the.. Diets composed exclusively of cacut and soy needs a supplement of Na. Sheep fed by diets composed by cactus or atriplex as voluminous exclusive, he doesn t have difference in the urine production.

ASSUNTO(S)

sodium consumption sheep carneiro metabolismo sódio consumo macrominerals macrominerais zootecnia metabolism

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