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Prandial Correlations and Structure of the Ingestive Behavior of Pigs in Precision Feeding Programs.
Gomes, Bruna C K; Andretta, Ines; Valk, Marcio; Pomar, Candido; Hauschild, Luciano; Fraga, Alícia Z; Kipper, Marcos; Trevizan, Luciano; Remus, Aline.
Afiliação
  • Gomes BCK; Department of Animal Science, Universidade Federal do Rio Grande do Sul, Porto Alegre 91540-000, Rio Grande do Sul, Brazil.
  • Andretta I; Department of Animal Science, Universidade Federal do Rio Grande do Sul, Porto Alegre 91540-000, Rio Grande do Sul, Brazil.
  • Valk M; Department of Statistics, Universidade Federal do Rio Grande do Sul, Porto Alegre 91540-000, Rio Grande do Sul, Brazil.
  • Pomar C; Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC J1M 0C8, Canada.
  • Hauschild L; Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista "Júlio de Mesquita Filho", Jaboticabal 14884-900, São Paulo, Brazil.
  • Fraga AZ; Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista "Júlio de Mesquita Filho", Jaboticabal 14884-900, São Paulo, Brazil.
  • Kipper M; PEGASE, INRAE, Institut Agro, 35590 Saint Gilles, France.
  • Trevizan L; Department of Animal Science, Universidade Federal do Rio Grande do Sul, Porto Alegre 91540-000, Rio Grande do Sul, Brazil.
  • Remus A; Department of Animal Science, Universidade Federal do Rio Grande do Sul, Porto Alegre 91540-000, Rio Grande do Sul, Brazil.
Animals (Basel) ; 11(10)2021 Oct 19.
Article em En | MEDLINE | ID: mdl-34680017
The feeding behavior of growing-finishing pigs was analyzed to study prandial correlations and the probability of starting a new feeding event. The data were collected in real-time based on 157,632 visits by a group of 70 growing-finishing pigs (from 30.4 to 115.5 kg body weight, BW) to automatic feeders. The data were collected over 84 days, during which period the pigs were kept in conventional (by phase and by group) or precision (with daily and individual adjustments) feeding programs. A criterion to delimit each meal was then defined based on the probability of an animal starting a new feeding event within the next minute since the last visit. Prandial correlations were established between meal size and interval before meal (pre-prandial) or interval after meal (post-prandial) using Pearson correlation analysis. Post-prandial correlations (which can be interpreted as hunger-regulating mechanisms) were slightly stronger than pre-prandial correlations (which can be interpreted as satiety regulation mechanisms). Both correlations decreased as the animals' age increased but were little influenced by the feeding programs. The information generated in this study allows a better understanding of pigs' feeding behavior regulation mechanisms and could be used in the future to improve precision feeding programs.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Animals (Basel) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Animals (Basel) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça