Detalhes bibliográficos
| Autor(a) principal: |
Alves, Sérgio Silva |
| Data de Publicação: |
2013 |
| Tipo de documento: |
Dissertação
|
| Idioma: |
por |
| Título da fonte: |
LOCUS Repositório Institucional da UFV |
| Texto Completo: |
http://locus.ufv.br/handle/123456789/5791
|
Resumo: |
Aiming at evaluating the effect of glutamine (Gln) + glutamic acid (Glu) in pig diets during lactation and nursery on performance , carcass characteristics, meat quality and intestinal morphology of the duodenum of piglets weaned at 28 days , we used 120 pigs distributed in a completely randomized design with four treatments (T1=litter from sows fed with lactation diets with Glu+Gln and piglets fed with nursery diets with Glu+Gln , T2= litter from sows fed with lactation diets with Glu+Gln and piglets fed with nursery diets without Glu+Gln , T3= litter from sows fed with lactation diets without Glu+Gln and piglets fed with nursery diets with Glu+Gln, T4 = litter from sows fed with lactation diets without Glu+Gln and piglets fed with nursery diets without Glu+Gln) and five replications with six piglets per experimental unit. Two pigs were slaughtered at 63 days of age to study the morphometric characteristics of the duodenum, and four at 93 days of age to study the characteristics of meat quality. The compound glutamine+glutamic acid did not affect (P>0.05) weight gain,feed intake and feed conversion of pigs in all evaluated periods, but affected (P<0.0001) villus height , (P=0.005), crypt depth (P<0.0001) and villus/crypt ratio. The compound glutamine+glutamic acid also affected (P=0.002) loin depth of pigs slaughtered at 63 days. In animals slaughtered at 93 days, the inclusion of glutamine+glutamic acid in the diets affected (P=0.021) live weight, (P=0.003) loin eye are and (P<0.0001) piglet meat pH. The inclusion of glutamine+glutamic acid in the diets did not affect (P>0.05) the qualitative characteristics of the meat. We conclude that the addition of glutamine+glutamic acid in the lactation diets associated with the inclusion of such amino acids in the nursery diets promote improvement in duodenal mucosal morphometry , carcass characteristics and organ weights of piglets weaned at 28 days of age. |