INFLUENCE OF ENVIRONMENTAL FACTORS ON THE LITTER SIZE AT BIRTH AND OF MORTALITY RATE AT WEANING OF PIGS IN PARAÍBA

Authors

  • Ludmila da Paz Gomes da Silva
  • Aderbal Cavalcante Neto
  • Maria Norma Ribeiro
  • Jeffrey Frederico Lui
  • Ovidio Tavares Vinagre
  • Antonio Carlos Ribeiro Vinagre
  • Luci Sayori Murata
  • Terezinha Domiciano Dantas Martins

DOI:

https://doi.org/10.5216/cab.v8i1.1152

Abstract

This experiment was carried out to evaluate the influence of the environmental and genetic factors on the litter size and mortality rate at birth and weaning f pigs in Paraíba, Brazil. The Zootechnical data was collected from farm SUPASA, in the district of Guarabira, state of Paraíba, Brasil. They were analyzed the data of pure swine Landrace and Large White and crossed animals (Landrace x Large White), born in the period from 1995 to 1996. The following characteristics were evaluated number of born pigs per litter (piglets born alive) and the rate of mortality of the pigs at weaning, in relation to the mother’s race, month and year of parturition, and sex of the pigs. After the studies of the collected data significant differences were verified among races for the litter size, it was observed that Landrace andthe crossed showed larger number of pigs per litter than Large White. The year and the month of parturition mad significant effect on the litter size, as well as the mortality rate. KEY WORDS: Breed, genetics parameters, produtive effficiency, reproduccion, swine

Downloads

Download data is not yet available.

Downloads

Published

2007-04-20

How to Cite

SILVA, L. da P. G. da; CAVALCANTE NETO, A.; RIBEIRO, M. N.; LUI, J. F.; VINAGRE, O. T.; VINAGRE, A. C. R.; MURATA, L. S.; MARTINS, T. D. D. INFLUENCE OF ENVIRONMENTAL FACTORS ON THE LITTER SIZE AT BIRTH AND OF MORTALITY RATE AT WEANING OF PIGS IN PARAÍBA. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 8, n. 1, p. 1–6, 2007. DOI: 10.5216/cab.v8i1.1152. Disponível em: https://revistas.ufg.br/vet/article/view/1152. Acesso em: 17 jul. 2024.

Issue

Vol. 8 No. 1 (2007)

Section

Animal Production

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).