HAL Id: hal-02745495
https://hal.inrae.fr/hal-02745495
Submitted on 3 Jun 2020
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A 5 year retrospective analysis of the rate of mount refusals among AI-boars
Stéphane Ferchaud, Vincent Furstoss, Jany Boutin, S. Boulot
To cite this version:
Stéphane Ferchaud, Vincent Furstoss, Jany Boutin, S. Boulot. A 5 year retrospective analysis of the rate of mount refusals among AI-boars. 16. Annual conference of the European Society for Domestic Animal Reproduction (ESDAR), European Society for Domestic Animal Reproduction (ESDAR).
INT., Aug 2012, Dublin, Ireland. 115 p., �10.1111/j.1439-0531.2012.02110.x�. �hal-02745495�
A 5 year retrospective analysis
of the rate of mount refusal among AI-boars.
S Ferchaud1, V Furstoss1, J Boutin1, S Michel1, C Audoux1, S Boulot2
1 INRA UE88 ICP, Rouillé, France, 2 IFIP, le Rheu, France
Effect of year on mount refusal
Effect of breed and age on mount refusal
Reasons for culling and mount refusal
n=1649
n=1443
n=1412
n=1529
n=1170
0%
1%
2%
3%
4%
5%
2007 2008 2009 2010 2011
Mount refusal (%)
n=2134 n=356
n=603 n=4110
n=4810 n=2078
n=315
0%
1%
2%
3%
4%
5%
LWxPI LD LW PI <2 2 > 3
Mount refusal (%)
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
Locomotor disdorder
Semen defect Age Libido
Boars culled %
Main reason for culling
Boars with mount refusal
Boars with no refusal Conclusion. Prevention of libido failures should focus on individual factors, specially behavioral or clinical parameters
Refusals to mount or to ejaculate disturb management of AI centers, and repeated events may compromise productivity or boar longevity.This retrospective study evaluates the frequency of libido problems among AI-boar over a 5 year period.
No effect of month or season.
-Significant effects on mount refusal:
Year (p<0.001) Breed (p<0.001) Age (p<0.001)
-Collection failure is associated with more culling for libido problems and slight differences for other reasons.
P46
Data collected from INRA boar stud (jan.2007 to dec.
2011):7 203 semen collections attempts from 264 boars of 4 genotypes (Large White LW, Landrace LD, Pietrain PI, LWxPI)
Effects of genetic line, year, month or season and age are evaluated using generalized linear model (Splus)
Breed Age (years)
