Níveis de plasma sangüíneo em dietas com antibiótico para leitões desmamados aos 21 dias de idade

• Autor(a) principal: Formigoni, Andressa da Silva
• Data de Publicação: 2012
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/5727
• topic: Plasma sangüíneo; Desafio sanitário; Índice bionutricional; Blood plasma; Health challenge; Index bionutritional; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL::AVALIACAO DE ALIMENTOS PARA ANIMAIS

In order to determine sequences of blood plasma levels in the diet with added antibiotic were used 168 piglets weaned at 21 days of age. The experimental design was completely randomized with six treatments and seven replications, with four animals per experimental unit. In the first post-weaning period of 22 to 28 days, the blood plasma levels used were 0,0%, 3,0% and 6,0% and similar levels were used in the second period (from 28 to 35 days) However, combined to form sequences of blood plasma from 0,0 to 0,0%, 3,0-0,0%, 3,0-3,0%, 6,0%-0,0%; 6,0-3,0% and 6,0-6,0%. Thirty and five to 49 days of age, piglets in all treatments received the same diet, free of plasma and antibiotics. There was no effect (P>0,05) of treatments on feed intake at 28 days old. At 35 days of age fed with 6,0% of blood plasma in the first week showed higher weight and feed intake and feed conversion (P<0,05). In the period of 21 to 49 days there were no differences between treatments (P>0,05). Regarding the height of villi, the treatments differed from the witness, and varied the size of the crypt depth. The animals fed diets with 6,0% of blood plasma during the first week, 3 and 6% in the second week showed differences (P<0,1) in the duodenum and ileum compared to control treatment, however, no differences were observed jejunal (P>0,1). The crypt depth in the duodenum, the sequence from 6,0 to 3,0% and 6,0-6,0% different when compared to untreated controls (P<0,1) and 6,0-6.0% sequence differed from the control treatment in the ileum (P<0,1). In the jejunum no treatment differed from the control treatment (P<0,1). We conclude that the sequence of blood plasma to be used in diets with antibiotics in an environment challenged to piglets weaned at 21 days of age is 6.0 in the first week.