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Evaluation of performance traits in European Meishan pig crosses with varying Oestrogen Receptor (ESR) genotypes

Published online by Cambridge University Press:  05 November 2021

O.I. Southwood  and
H.A.M. van der Steen
O.I. Southwood
Affiliation:
PIC Europe, Fyfield Wick, Abingdon, Oxon, OX13 5NA, UK
H.A.M. van der Steen
Affiliation:
PIC Group, Fyfield Wick, Abingdon, Oxon OX13 5NA, UK
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Extract

A significant relationship between the ESR gene and litter size has been reported for a range of Meishan synthetic and Large White lines (Rothschild et al., 1995). The effect of one copy of the positive (B) allele in a European 50% Chinese Meishan synthetic (L93) was estimated as +0.79 pigs born alive per litter in the first parity (Southwood et al, 1995). It is therefore of interest to incorporate the positive allele into a comercial parent gilt, the growing performance and soundness of these animals also being of importance. The objective of this trial was to evaluate the effect of the ESR gene on growth and performance traits in a commercial type background.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 28
Copyright
Copyright © British Society of Animal Science 1997

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References

Rothschild, M.F., Vaske, D.A., Tuggle, C.K., Messer, L.A., McLaren, D.G., Short, T.H., Eckardt, G.R., Mileham, A.J., Plastow, G.S. (1995). Estrogen Receptor locus is a major gene for litter size in the pig. 46th Annual Meeting Of EAAP Google Scholar
Southwood, O.I., van der Steen, H.A.M., Mileham, A.J., Cuthbert-Heavens, D. (1995). Evaluation of the Oestrogen Receptor (ESR) gene in Meishan synthetic and Large White pigs. 46th Annual Meeting of EAAP Google Scholar