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      Suplementação de aminoácidos para redução da proteína bruta em dietas para leitões desmamados aos 21 dias de idade Translated title: Supplementation of amino acids to reduce crude protein in diets for piglets weaned at 21 days

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          Abstract

          Avaliou-se o efeito da suplementação de aminoácidos industriais para redução de proteína bruta (PB) em dietas para leitões desmamados aos 21 dias de idade sobre o desempenho e sobre as variáveis morfofisiológicas, utilizando-se 126 leitões com peso inicial de 6,05±0,35kg. Os animais foram distribuídos em delineamento experimental de blocos ao acaso, com seis tratamentos (24,0; 23,0; 22,0; 21,0; 20,0; 19,0% de PB), sete repetições e três animais por unidade experimental. Não houve efeito significativo da redução de proteína bruta da dieta sobre o ganho de peso médio diário, o consumo de ração diário e a conversão alimentar, e o pH do estômago também não sofreu influência, mas houve diminuição do pH do duodeno. Os pesos relativos do baço e do fígado, a altura de vilosidades e a profundidade de criptas no duodeno, jejuno e íleo não foram influenciados, enquanto o peso do pâncreas diminuiu com a redução da proteína bruta da dieta.

          Translated abstract

          The objective of this work was to evaluate the effect of amino acid supplementation for the reduction of crude protein (CP) in diets for piglets weaned at 21 days of age on performance and morphophysiological parameters of 126 piglets with an initial weight of 6.05±0.35kg. The animals were divided into a randomized block experimental design with six treatments (24.0, 23.0, 22.0, 21.0, 20.0, 19.0% CP), seven replicates and three animals per experimental unit. It was found that there was no significant effect of reducing crude protein in the diet on the piglets' average daily weight gain, feed intake and feed conversion (FC). It was also found that the reduction of protein did not influence the pH of the stomach, however, the pH of the duodenum decreased with the reduction of CP. The relative weights of the spleen, liver and villus height and crypt depth in the duodenum, jejunum and ileum were not affected, whereas pancreatic weight decreased with the reduction of crude protein in diets.

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          Most cited references31

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          SISTEMA de análises estatísticas e genéticas - SAEG

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              Trophic effect of dietary peptides on mucosa in the rat small bowel

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                abmvz
                Arquivo Brasileiro de Medicina Veterinária e Zootecnia
                Arq. Bras. Med. Vet. Zootec.
                Universidade Federal de Minas Gerais, Escola de Veterinária (Belo Horizonte )
                1678-4162
                August 2013
                : 65
                : 4
                : 1131-1138
                Affiliations
                [1 ] Universidade Federal de Viçosa Brazil
                [2 ] Empresa de Pesquisa Agropecuária de Minas Gerais Brazil
                Article
                S0102-09352013000400028
                10.1590/S0102-09352013000400028
                1ef28301-4b0a-4b8c-b5e0-ea63867405e5

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0102-0935&lng=en
                Categories
                VETERINARY SCIENCES

                General veterinary medicine
                essential amino acids,diarrhea,ideal protein,swine,weaning,aminoácidos essenciais,desmame,diarreia,proteína ideal,suíno

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