黑鸭
- 网络A coot;Black Duck;American Coot
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利用A、B、C、D4个品系12组莆田黑鸭母鸭研究AKP同工酶表型和生产性能的关系。
The relationship between the phenotype of AKP isozyme and performance was examined in 12 groups of 4 strains ( A , B , C , D ) of putian Black Duck .
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莆田黑鸭MHC基因4个位点的密码子其相对使用频率存在一定的差异,即该基因的4个研究位点存在密码子偏倚性。
The frequency of coden usage of four loci in Putian Black Duck showed differences , namely there existed codon bias with the four loci . 4 .
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莆田黑鸭MHC基因与其他物种的聚类分析表明,禽类分支中,鸭与鹅的亲缘关系最近。
The MHC gene clustering analysis of Putian Black Duck versus other species showed that the genetic distance between duck and goose was the closest in the poultry group .
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莆田黑鸭青壳蛋遗传规律的研究
Study on Genotype of Blue Egg Shell in Pu-tian Black Laying Ducks
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产蛋鸭(莆田黑鸭)的能量和蛋白质需要的研究
Energy and protein requirements of Pu-tian laying ducks
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秧鸡科的几种水鸟之任一种,如番鸡、秧鸡或黑鸭,居住在沼泽地。
Any of various water birds of the family Rallidae , as the gallinule , rail , or coot , that inhabit marshland .
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日粮电解质平衡对开产笼养蛋鸭的影响产蛋鸭(莆田黑鸭)的能量和蛋白质需要的研究
The study on the optimal levels of the dietary electrolyte balance for rearing laying ducks in summer ENERGY AND PROTEIN REQUIREMENTS OF PU-TIAN LAYING DUCKS
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在这一整条杳无人迹的海岸线上,海岛、盐沼和沙滩为冻原天鹅、黑鸭、黑水鸡和其他水鸟提供了一个绝佳的栖息所。
All along this uninhabited shoreline , sea islands , salt marshes , and sandy beaches provide a perfect resting place for Tundra swans , coots , gallinules , and other water birds .