The preliminary report on the minerals iron and zinc
in meat suggest low to moderate heritabilities (Table 1),
although there is one very high estimate for zinc from limited
data (Bennett and Field, 1985). More precise estimates
will be available as more data are obtained (Mortimer
et al., 2010). The estimates of heritability for the omega-
3 fatty acids EPA and DHA range from 0.16 to 0.29, with
relatively high phenotypic variation, supporting the conclusions
of Karamichou et al. (2006a) and Greeff et al.
(2007) that it may be possible to improve omega-3 fatty
acids through selection. Karamichou et al. (2007) reported
negative residual correlations between both EPA and DHA
with overall eating quality liking. There are few reports
of genetic correlations between meat quality traits, production
traits (reviewed by Mortimer et al., 2010) and
reproduction traits. Mortimer et al. (2010) reported a negative
correlation (−0.19
±
0.11) between IMF and weaning
The preliminary report on the minerals iron and zincin meat suggest low to moderate heritabilities (Table 1),although there is one very high estimate for zinc from limiteddata (Bennett and Field, 1985). More precise estimateswill be available as more data are obtained (Mortimeret al., 2010). The estimates of heritability for the omega-3 fatty acids EPA and DHA range from 0.16 to 0.29, withrelatively high phenotypic variation, supporting the conclusionsof Karamichou et al. (2006a) and Greeff et al.(2007) that it may be possible to improve omega-3 fattyacids through selection. Karamichou et al. (2007) reportednegative residual correlations between both EPA and DHAwith overall eating quality liking. There are few reportsof genetic correlations between meat quality traits, productiontraits (reviewed by Mortimer et al., 2010) andreproduction traits. Mortimer et al. (2010) reported a negativecorrelation (−0.19±0.11) between IMF and weaning
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