Vol. 26 No. 4 (2016)
Artículos de Investigación

Relationship between lactation length and weaning service interval and subsequent sow productivity traits in an intensive swine production system

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  • Ana Laura Kinejara Espinoza,
  • Alberto Barreras Serrano,
  • José Guadalupe Soto Ávila,
  • Eduardo Sánchez López,
  • José G. Herrera Haro
Ana Laura Kinejara Espinoza
Universidad Autónoma de Baja California
Bio
Alberto Barreras Serrano
Universidad Autónoma de Baja California
Bio
José Guadalupe Soto Ávila
Universidad Autónoma de Baja California
Bio
Eduardo Sánchez López
Universidad Autónoma de Baja California
Bio
José G. Herrera Haro
Colegio de Postgraduados
Bio
DOI: https://doi.org/10.15174/au.2016.949

Published 2016-09-15

Keywords

  • Swine,
  • lactation length (LL),
  • weaning service interval (WSI),
  • litter size (LZ).
  • Cerdos,
  • largo de lactancia (LL),
  • intervalo destete servicio (IDS),
  • tamaño de camada (TC).

How to Cite

Kinejara Espinoza, A. L., Barreras Serrano, A., Soto Ávila, J. G., Sánchez López, E., & Herrera Haro, J. G. (2016). Relationship between lactation length and weaning service interval and subsequent sow productivity traits in an intensive swine production system. Acta Universitaria, 26(4), 36–43. https://doi.org/10.15174/au.2016.949

Abstract

Relationship between lactation length (LL), weaning service interval (WSI) and number of piglets born (NPB), piglets born alive (PBA), birth weight (BW) and weaning weight (WW) were investigated. Influence of environmental components and linear and quadratic effects of LL, and WSI on subsequent productivity were analyzed by ANOVA. Only 24.4% of females showed estrus between 5 to 7 days after weaning. In the NP ≤ 2 females group, PBA values were different (p < 0.05) to WSI class. WSI higher than 7 days were observed when LL ≤ 21 days. A one-day increase in LL resulted in a decrease in 0.066 piglets for subsequent PBA. If WSI increases from 7 to 12 days and LL was fixed in 21 days, increase in piglets was of 0.07 for PBA. Besides, for each one-day increase on LL, a 0.235 kg increase may be expected in subsequent WW.

 
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