约克夏猪（Yorkshire）亦称大白猪(Large White)，18世纪用北英格兰土产大型白猪和体型较小较肥的中国白猪杂交而成的猪种。
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.
结果表明，梅山猪、宁夏黑猪和杜洛克猪肌内脂肪含量高于长白猪和约克夏猪（P<0.05）。
The results indicated that IMF of Meishan, Ningxia Black and Duroc were higher than that of Landrace and Yerkshire(P<0.05).
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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