2017
DOI: 10.1017/s1751731117000106
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: In 1990, two selection lines of Merino sheep were established for low and high behavioural reactivity (calm and nervous temperament) at the University of Western Australia. Breeding records consistently showed that calm ewes weaned 10% to 19% more lambs than the nervous ewes. We hypothesise that calm ewes could have a higher ovulation rate than nervous ewes and/or calm ewes could have a lower rate of embryo mortality than nervous ewes. We tested these hypotheses by comparing the ovulation rate and the rate of … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
5
0

Year Published

2020
2020
2023
2023

Publication Types

Select...
7
1

Relationship

0
8

Authors

Journals

citations
Cited by 12 publications
(5 citation statements)
references
References 28 publications
0
5
0
Order By: Relevance
“…Oxytocin is an important regulator of social behaviors (Damián et al, 2021) such as maternal behavior (Meyer-Lindenberg et al, 2011) and recognition in humans (Kumsta et al, 2013), and polymorphism in the oxytocin receptor gene has been associated with temperament, reactivity to stressors, and aggressive behaviors (Rodríguez et al, 2009;Tost et al, 2010;Malik et al, 2012). Therefore, the gene-set revealed that the enriched calcium signaling pathway is closely related to temperament because involves many aspects of this trait and its physiological effects, as has been shown previously in reproductive aspects (Bickell et al, 2010;Van Lier et al, 2017).…”
Section: Functional Enrichment Analysismentioning
confidence: 81%
See 2 more Smart Citations
“…Oxytocin is an important regulator of social behaviors (Damián et al, 2021) such as maternal behavior (Meyer-Lindenberg et al, 2011) and recognition in humans (Kumsta et al, 2013), and polymorphism in the oxytocin receptor gene has been associated with temperament, reactivity to stressors, and aggressive behaviors (Rodríguez et al, 2009;Tost et al, 2010;Malik et al, 2012). Therefore, the gene-set revealed that the enriched calcium signaling pathway is closely related to temperament because involves many aspects of this trait and its physiological effects, as has been shown previously in reproductive aspects (Bickell et al, 2010;Van Lier et al, 2017).…”
Section: Functional Enrichment Analysismentioning
confidence: 81%
“…The h 2 for other productive species is similar to the estimated value (cattle: 0.22 – 0.26, Le Neindre et al, 1995 and Burrow et al, 1988; horses: 0.23, Oki et al, 2007). Despite the fact that temperament is not economically valued, several studies confirm its incidence in productive characters (Voisinet et al, 1997; Wulf et al, 2002; Sart et al, 2004; Bickell et al, 2010; Van Lier et al, 2017).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Of the SNPs that were associated with temperament in the UWA temperament ock, only rs107856856 (as a non-independent marker for rs107856757, rs107856818, and rs107857156) in the THP2 gene and rs17196799 in HTR2A had predictive power in the non-selected sheep. The lack of predictive power of the other SNPs that were different between the selected lines could be due to a long-term effect of the selection on temperament on mutations in other genes that encode for traits such as maternal behaviour or ovulation rate, traits that have been associated with temperament [8,71]. In silver foxes that have been selected for contact-seeking behaviour with humans (tame / aggressive) [72], as well as differences in the gene expression and activity of key enzymes (tryptophan 5-hydroxylase, monoamine oxidase, and 5-HTT) in neurotransmitter systems [73], the allele frequency of other exonic SNPs, together with the expression of related genes, changed with the selection for tameness [74].…”
Section: Discussionmentioning
confidence: 99%
“…Maternal temperament influences fecundity in mammals. Calm ewes produce more progeny due to a higher ovulation rate (van Lier et al., 2017) and less lamb mortality during the first three days postpartum (Blache & Bickell, 2010). In women, stress is considered as one of the direct causes of decreased intrauterine fetal growth (Dipietro, 2012; González‐Ochoa et al., 2018; Lambertini et al., 2019).…”
Section: Introductionmentioning
confidence: 99%