Genetic effects on reproductive traits in Warmblood horses

Genetic effects on reproductive traits in Warmblood horses

Reproductive efficiency is an important issue in horse breeding. However, almost no estimates of genetic parameters of reproductive traits in horses can be found in the literature. The objective of the study was to estimate heritability and genetic trends of foaling rate and number of reproductive s...

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Veröffentlicht in:Canadian journal of animal science 2009-06, Vol.89 (2), p.215-218
Hauptverfasser: Wolc, A, Torzynski, G, Szwaczkowski, T
Format: Artikel
Sprache:eng
Schlagworte:
additive gene effects
animal breeding
animal reproduction
female fertility
foaling
foals
genetic variation
genotype
heritability
horse breeds
horses
seasonal variation
sires
Warmblood (horse breed)
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Beschreibung
Zusammenfassung:Reproductive efficiency is an important issue in horse breeding. However, almost no estimates of genetic parameters of reproductive traits in horses can be found in the literature. The objective of the study was to estimate heritability and genetic trends of foaling rate and number of reproductive seasons in Warmblood horses. The records of 3965 mares from six studs were analyzed. Mares were on average kept for 7.3 reproductive seasons with a foaling rate of 66%. Models included fixed effects of stud, period of birth, breed and random additive genetic effect. Heritability estimates were 0.12 for foaling rate and 0.17 for number of reproductive seasons.
ISSN:0008-3984
1918-1825
DOI:10.4141/CJAS08067