Influence of the inclusion of spray-dried animal plasma in weanling pigs’ diet on porcine circovirus type 2 (PCV2) loads

  • Renato Pacheco Monferdini Instituto de Zootecnia, Centro de Pesquisa em Zootecnia Diversificada
  • Alessandra Marnie Martins Gomes de Castro Complexo Educacional Faculdade Unidas Metropolitanas, Hospital Veterinário, Campus Ponte Estaiada
  • Priscilla Freitas Gerber Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventiva, Laboratório de Pesquisa em Virologia Animal
  • Fernando Gomes de Castro Junior Instituto de Zootecnia, Centro de Pesquisa em Zootecnia Diversificada
  • Zélia Ines Portela Lobato Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventiva, Laboratório de Pesquisa em Virologia Animal
  • Flavio Aparecido Baldiserra Junior Complexo Educacional Faculdade Unidas Metropolitanas, Hospital Veterinário, Campus Ponte Estaiada
  • Marcos Bryan Heinemann Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Medicina Veterinária Preventina e Saúde Animal
  • Leonardo José Richtzenhain Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Medicina Veterinária Preventina e Saúde Animal
  • Fábio Enrique Lemos Budiño Instituto de Zootecnia, Centro de Pesquisa em Zootecnia Diversificada
Keywords: Weaning pigs, Spray-dried animal plasma, Humoral immune response

Abstract

Spray-dried animal plasma (SDAP), a natural byproduct of the meatpacking industry, has been shown to have beneficial effects on growth and performance of weaned pigs. Porcine circovirus 2 (PCV2) is an important virus that is disseminated in the pork industry. Regardless of the studies evaluating the possible transmission of PCV2 through SDAP, there is no information about the effects of its inclusion in the PCV2 loads in natural infections. The present investigation evaluated the influence of dietary inclusion levels of SDAP in weanling pigs on PCV2 viremia and humoral immune response. Fifty-six weaned piglets were fed in a 2-period feeding program. Dietary treatments included 0%, 2%, 4% or 6% and 0%, 1%, 2% or 3% of SDAP during period 1 (14 to 28 days old) and 2 (29 to 42-days old), respectively. In period 3 (42 to 56 days old), all piglets received a SDAP-free diet. Serum samples were collected weekly and tested for PCV2 antibodies and DNA load. The results show that the concentration of 6% and 3% of SDAP on feed offered for pigs during period 1 and 2, respectively, may have decreased the PCV2 loads.

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Author Biography

Zélia Ines Portela Lobato, Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventiva, Laboratório de Pesquisa em Virologia Animal
Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventiva, Laboratório de Pesquisa em Virologia Animal
Published
2017-05-19
How to Cite
Monferdini, R., Castro, A., Gerber, P., Castro Junior, F., Lobato, Z., Baldiserra Junior, F., Heinemann, M., Richtzenhain, L., & Budiño, F. (2017). Influence of the inclusion of spray-dried animal plasma in weanling pigs’ diet on porcine circovirus type 2 (PCV2) loads. Brazilian Journal of Veterinary Research and Animal Science, 54(1), 75-80. https://doi.org/10.11606/issn.1678-4456.bjvras.2017.116672
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