Sources of protein and slaughtering ages on the structure and ultra structure of the small intestine of weaned piglets

Authors

  • Maria Cristina Thomaz Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Jaboticabal, SP
  • Antonio Carlos Silveira Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Jaboticabal, SP
  • Rodolfo Nascimento Kronka Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Jaboticabal, SP
  • Laura Satiko Okada Nakaghi Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Jaboticabal, SP
  • Fábio Enrique Lemos Budiño Secretaria de Agricultura e Abastecimento, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Nova Odessa, SP

DOI:

https://doi.org/10.11606/S1413-95962011000500008

Keywords:

Extruded semi-integral soybean, Intestinal morphology, Milk products, Soybean meal, Swine

Abstract

Two experiments (experiment 1 - conventional feeding and experiment 2 - feeding of the sows, starting at 109 days of pregnancy and during lactation, and the lactating piglets, with rations without soybean meal) were conducted to evaluate the effects of sources of protein (soybean meal-SBM, extruded semi-integral soybean-ESISB, and milk products-MP) on the intestinal morphology of piglets slaughtered at the 0, 5 and 15 days later at weaning. Twenty-seven piglets weaned with 25 days of age were used, being nine piglets slaughter in each slaughtering age. A 3 x 3 factorial (3 diets x 3 slaughtering ages) was studied, according to a randomized block design. The results showed that animals receiving SBM, presented lower values of villi height and villus:crypt ratio when compared to those that received ESISB or MP. The villi height and the villus:crypt ratio were not affected by the differential feeding of the sows and of the piglets before the weaning. The depth of the crypt was not affected by diets or slaughtering ages in none of the segments studied being, however, smaller in the duodenum and bigger in the jejunum and ileo of the animals of exp. 2. It was concluded that the SBM was the affected the height of the villi and the relationship villi:crypt negatively after it weans. The intestinal morphology was more affected at five days, showing signals of recovering at 15 days after weaning and that the feeding of the sows did not affect the morphology of the segments of the thin intestine.

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Published

2011-10-01

How to Cite

Thomaz, M. C., Silveira, A. C., Kronka, R. N., Nakaghi, L. S. O., & Budiño, F. E. L. (2011). Sources of protein and slaughtering ages on the structure and ultra structure of the small intestine of weaned piglets. Brazilian Journal of Veterinary Research and Animal Science, 48(5), 408-418. https://doi.org/10.11606/S1413-95962011000500008

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