Meta-analysis on the relationship among feeding characteristics, salivary and plasmatic cortisol levels, and performance of pregnant sows housed in different systems

This study was carried out to evaluate the relationship among the effects of housing systems, the nutritional composition of diets, and feeding program on performance and concentrations of salivary, and plasmatic cortisol in pregnant sows. The database was composed by 22 articles published from 1996...

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Bibliographic Details
Published in:Livestock science 2012-12, Vol.150 (1-3), p.310-315
Main Authors: Melchior, Raquel, Zanella, Irineo, Alberto Lovatto, Paulo, Roberta Lehnen, Cheila, Lanferdini, Eloiza, Andretta, Ines
Format: Article
Language:English
Subjects:
Animal welfare
birth weight
correlation
cortisol
crude protein
Deep bedding
feed composition
meta-analysis
metabolizable energy
nutrient content
Nutrition
piglets
Pregnancy
reproductive performance
sows
Stress
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Summary:This study was carried out to evaluate the relationship among the effects of housing systems, the nutritional composition of diets, and feeding program on performance and concentrations of salivary, and plasmatic cortisol in pregnant sows. The database was composed by 22 articles published from 1996 to 2010, totaling 170 treatments, and 1941 animals. Of the 22 studied articles 12 articles evaluated salivary cortisol, 9 evaluated plasmatic cortisol, and 1 article evaluated both salivary and plasmatic cortisol. The meta-analysis was performed by sequential analysis: graphical, correlation, and variance–covariance. Salivary cortisol was positively correlated (P
ISSN:1871-1413
1878-0490
DOI:10.1016/j.livsci.2012.09.020