The PCR-SSCP and gene sequencing were applied to detecte the polymorphism of GH gene complete sequence in 320 individuls that comprised of six sheep population, namely Oula Tibetan sheep(short name Oula sheep), Qiaoke Tibetan sheep(short name Qiaoke sheep), Ganjia Tibetan sheep(short name Qiaoke sheep), Small Tailed Han sheep, Genmeny marino, Poll Dorset. And the correlation between genetic polymorp- hisms and growth traits were analyzed by using general linear model(GLM). The results showed that:
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