军垦型美利奴羊的血清转铁蛋白分析

Study on Blood Transferrin of Reclamation′s Merino Sheep

为了探索军垦型、新疆型和澳大利亚型美利奴羊之间羊血清Ｔｆ（ 转铁蛋白）与主要生产性状之间的相关性，采用聚丙烯酰胺凝胶电泳法测定了３ 个品系的４７８ 只军垦型美利奴羊，１３２ 只新疆型美利奴羊和３９ 只澳大利亚美利奴羊的血清转铁蛋白。结果表明，３ 个品系的军垦型美利奴羊的优势基因都是ＴｆＭ 和ＴｆＢ，军垦型美利奴羊和新疆型美利奴羊之间，Ｔｆ 基因均有显著的分布差异，显示军垦型美利奴羊有成为一个新的细毛羊品种的血清蛋白遗传学基础。军垦型美利奴羊与新疆型美利奴羊以及澳大利亚美利奴羊Ｔｆ 基因型的分布频率不同，优势基因型分别为ＴｆＭＭ（０．４２１） 、ＴｆＢＭ（０ ．２８８） 、ＴｆＣＭ（０ ．２８２） 。军垦型美利奴羊Ａ、Ｂ、Ｃ３ 个品系的Ｔｆ 基因型的分布频率互有差异，而同一品系内部公母羊之间的Ｔｆ 基因型分布则较相近，证明军垦型羊Ａ、Ｂ、Ｃ３

Blood transferrin is tested through polycrylamidegel electrophoresis on three strains of reclamation,Xinjiang and Australian merino sheep.Tf ″M″ (transferrin M) is superior gene in three strains of reclamation′s merino sheep.Except of Tf ″B″ gene,Tf is very different in merino sheep,which proves that reclamation merino sheep has heredity basis of blood protein that become a new strain.Distribution rate of Tf gene in reclamation′s merino sheep is different from Xinjiang and Australian merino sheep.Superior gene is Tf ″MM″(0.421),Tf ″BM″( 0.288 ),Tf ″CM″(0.282) respectively.Distribution rate of Tf gene is different in A,B and C three strains of reclamation merino sheep.Distribution rate of Tf gene is nearly same in male and female sheep of the same strain reclamation merino sheep,which proves that the setup of A,B and C three strains reclamation merino sheep has heredity basis of blood protein.