2010
DOI: 10.1590/s1516-35982010001300044 View full text |Buy / Rent full text
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Abstract: Reproductive capacity is controlled by a large number of factors such as season, social interactions and metabolic status. However, the influence of emotional reactivity on reproductive success has not been intensively investigated in farm animals. In this review, we define emotion reactivity and the expression of its inter individual variability named temperament. We briefly describe our protocol to measure temperament in sheep and discuss the heritability of temperament traits. Using the results obtained fro… Show more

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“…This study indicated the role of the PVN to translate signals of emotional stress via the HPAA to increase or decrease cortisol levels accordingly [ 73 ]. Furthermore, the emotional reactivity (temperament) of sheep has been successfully used as selection criterion in breeding programmes to improve reproductive biology [ 92 ]. Selection for “calm” ewes increased lamb survival and maternal behaviour [ 77 ].…”
Section: Robustness As Breeding Goal: Utilization Of Hpaa Functionmentioning
“…The ewes of the selection lines have similar productive outcomes when not challenged by the environment or nutrition (Bickell et al, 2010a;Blache and Bickell, 2010;Hawken et al, 2012). When under sub-optimal conditions, the calm ewes perform better than the nervous ewes (Hawken et al, 2012).…”
Section: Abmentioning
“…In fact, the analysis showed that ewes in the calm line carried more foetuses (1.39, n = 472) compared with nervous ewes (1.29, n = 302). The calm ewes carried a higher proportion of twins, 35.4% compared with 14.6% for the nervous ewes (P < 0.001; Blache and Bickell, 2010).…”
Section: Introductionmentioning
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