SciELO - Scientific Electronic Library Online

 
vol.10 número2APLICAÇÃO DE MODELOS DE PROGNÓSTICO EM PRODUTOS DE CONSUMOISOTERMAS DE DESSORÇÃO DE UMIDADE EM PITAIAIÁS AMARELO (Selenicereus megalanthus) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Biotecnología en el Sector Agropecuario y Agroindustrial

versão impressa ISSN 1692-3561

Resumo

MONTOYA R., CAROLINA; LOPEZ H., ALBEIRO  e  PARRA S., JAIME. ALTERATIONS IN THE PRODUCTION mRNA OF INTESTINAL ENZYMES IN PIGS DURING SEVERAL POSTWEANING PERIODS. Rev.Bio.Agro [online]. 2012, vol.10, n.2, pp.126-134. ISSN 1692-3561.

The aim of this study was to determine the gene expression of enzymes to enterocyte level of pigs during post-weaning periods.The experiment was conducted in San PabloProductionCenter of the Universidad Nacional de Colombia (Medellín) with 16 weaned pigs at 21 days of age.The animals were fed for 10 days with a basal diet with milk and some of its derivatives, and that also fulfilled all the nutritionals minimums. Pigs were sequentially slaughtered on days one, five, seven, and 10 days after weaning.Complete extraction of small intestine was realized, which was divided into three sections (duodenum, jejunum and ileum). The gene expression of digestive enzymes by RT-PCR was evaluated.The statistical design used was completely at random. For intestinal enzymes significant decreases were showed, where on fifth day post-weaning presented the lowest values (P<0.01). Between one and 10 days post-weaning there were differences (P<0.01). The duodenum showed the highest values of gene expression (P<0.01). Early weaning alters molecular expression of enzymes to enterocyte level, causing the decrease of intestinal absorption of nutrients, and probably the presentation of post-weaning diarrhea syndrome.

Palavras-chave : Aminopeptidases; Disaccharidases; Intestinal villi; RT-PCR; Weaning.

        · resumo em Português | Espanhol     · texto em Espanhol     · Espanhol ( pdf )