Levels of dietary zinc on weaning piglets: Performance, diarrhea incidence and E.coli isolation

Authors

  • Vnia Maria Arantes Universidade Federal de Uberlndia, Departamento de Zootecnia, Uberlndia, MG
  • Maria Cristina Thomaz Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Rodolfo Nascimento Kronka Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Euclides Braga Malheiros Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Vinicius Mundim e Barros Universidade Federal de Uberlndia, Uberlndia, MG
  • Eduardo Souza Pinto Universidade Federal de Uberlndia, Uberlndia, MG
  • Fábio Enrique Lemos Budiño Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Zootecnia Diversificada, Nova Odessa, SP
  • Alessandro Luís Fraga Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Urbano dos Santos Ruiz Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Rizal Alcides Robles Huaynate Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP

Keywords:

economical analysis, feed, gain, microbiology, swine

Abstract

The present experiment was conducted to determine the effect of the addition of different levels of zinc (0, 1500, 3000 and 4500 ppm) in the diet of weaned pigs on performance, diarrhea incidence and importance, E. coli, enterohemorrhagic E. coli and P. mirabilis isolation and economical analysis. Sixty crossed weaned piglets with 21 days of age, were used, arranged in a randomized design, with 4 treatment, 5 replications. The periods (P) considered were: P1, of the it weans (day zero) up to 14 days it after weaning; P2, from 15 to 42 days after weaning and Total (TP), of the day zero to the 42 days after weaning, for performance and economical analysis; week 1, week 2, and P1, for incidence and gravity of the diarrhea; collection of feces to the 0, 7 and 14 days after weaning for the microbiological isolation. The polinomial regression was used for the levels of Zn in the variables daily feed intake (DFI), daily weight gain (DWG) and feed:gain ratio (FG). The addition of 1500 ppm of Zn in diet was enough to improve piglets DWG and FG. ZnO was not effective in controlling E. coli and enterohemorrhagic E. Coli in the 14 days after weaning.

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Published

2013-11-27

Issue

Section

ANIMAL NUTRITION

How to Cite

Levels of dietary zinc on weaning piglets: Performance, diarrhea incidence and E.coli isolation. (2013). Bulletin of Animal Husbandry, 62(3), 189-201. http://bia.iz.sp.gov.br/index.php/bia/article/view/1295

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