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Survival analysis of piglet pre-weaning mortality
- Source :
- Italian Journal of Animal Science, Vol 6, Iss 1s, Pp 67-69 (2010)
- Publication Year :
- 2010
- Publisher :
- Taylor & Francis Group, 2010.
-
Abstract
- Survival analysis methodology was applied in order to analyse sources of variation of preweaning survival time and to estimate variance components using data from a crossbred piglets population. A frailty sire model was used with the litter effect treated as an additional random source of variation. All the variables considered had a significant effect on survivability: sex, cross-fostering, parity of the nurse-sow and litter size. The variance estimates of sire and litter were closed to 0.08 and 2 respectively and the heritability of pre-weaning survival was 0.03.
- Subjects :
- Piglet, Pre-weaning mortality, Survival analysis
Animal culture
SF1-1100
Subjects
Details
- Language :
- English
- ISSN :
- 15944077, 1828051X, and 44244819
- Volume :
- 6
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Italian Journal of Animal Science
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.b63879b0a4424481956e2166f5ce45a2
- Document Type :
- article
- Full Text :
- https://doi.org/10.4081/ijas.2007.1s.67