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A note on the influence of ‘boar effect’ component stimuli on puberty attainment in the gilt

Published online by Cambridge University Press:  02 September 2010

R. N. Kirkwood  and
P. E. Hughes
R. N. Kirkwood
Affiliation:
Department of Animal Physiology and Nutrition, University of Leeds, Leeds LS2 9JT
P. E. Hughes
Affiliation:
Department of Animal Physiology and Nutrition, University of Leeds, Leeds LS2 9JT
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Abstract

Forty Large White × (Landrace × Large White) gilts were allocated by litter to one of four treatments, such that one gilt from each of 10 litters was on each treatment. The treatments were: (i) 30-min daily boar exposure; (ii) 30-min daily pen change; (iii) 30-min daily pen change, plus exposure to boar urinary pheromone; and (iv) a control, subject to no stimulation.

The treatments commenced at a gilt age of 165 days and continued either until puberty was detected or a cutoff age of 250 days was reached. Analysis revealed no significant differences between any groups for age at puberty or ovulation rate (determined at slaughter following the second oestrus).

Type
Research Article
Information
Animal Production , Volume 31 , Issue 2 , October 1980 , pp. 209 - 211
Copyright
Copyright © British Society of Animal Science 1980

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References

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