是以外三元苗猪为主，并有杜洛克、杜长大、大约克、长白山等苗猪。
Are mainly outside the ternary and Duroc, Duroc, Yorkshire, Changbai Mountain, etc. I.
这表明，开放式群体选育能提高大约克夏猪的生产性能。
This indicates that the productive performance of Large-Yorkshire can be increased by opened herd breeding.
对香猪、上海白猪、大约克夏猪的垂体特异性转录因子(PIT - 1)基因进行了单核苷酸多态性(snp)分析。
The single nucleotide polymorphisms (SNP) of pituitary specific transcription factor 1 (PIT-1) gene was analyzed in Xiang pig, Shanghai White pig and Yorkshire pig.
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