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| 秦川牛高档牛肉产量的分子标记研究 | |
| 引用本文： | 孙维斌,陈 宏,雷雪芹.秦川牛高档牛肉产量的分子标记研究[J].西北农林科技大学学报(社会科学版),2003,31(4):67-70. |
| 作者姓名： | 孙维斌 陈 宏 雷雪芹 |
| 作者单位： | 1. 西北农林科技大学,动物科技学院,陕西省农业分子生物学重点实验室,陕西,杨陵,712100 2. 西北农林科技大学,动物科技学院,陕西省农业分子生物学重点实验室,陕西,杨陵,712100;徐州师范大学,生物技术研究所,江苏,徐州,221009 3. 河南科技大学,河南,洛阳,471000 |
| 基金项目： | 国家“8 63”计划项目 ( 2 0 0 1AA2 43 0 5 2 )，国家自然科学基金项目 ( 3 0 0 70 5 5 1)，杨凌示范区专项基金 ( 99KG8)，农业部留学回国人员活动基金 ( 1999-12 D)，西北农林科技大学青年基金资助项目 ( 0 80 8) |
| 摘 要： | 以 IGFBP- 3基因作为侯选基因 ,对秦川牛群体中 IGFBP- 3位点与秦川牛高档牛肉产量的关系进行了分析。结果发现 ,不同基因型对秦川牛高档牛肉产出率有一定影响 ,AA、AB及 BB型个体的屠宰率、净肉率及西冷、牛柳、眼肉和嫩肩肉的产率逐渐降低 ,但差异不显著 (P>0 .0 5 ) ;AA型个体的眼肌面积大于 BB型个体 (P<0 .0 5 ) ,AB型和 BB型个体胴体脂肪含量高于 AA型个体 (P<0 .0 1) |
| 关 键 词： | 秦川牛 高档牛肉产量 胰岛素样生长因子结合蛋白-3(IGFBP-3)基因 PCR-RFLPs |
| 文章编号： | 1671-9387(2003)04-0067-04 |
| 收稿时间： | 2002/12/18 0:00:00 |
| 修稿时间： | 2002年12月18 |
Polymorphisms of insulin-like growth factor binding protein-3 gene and its associations with several carcass traits in Qinchuan Cattle |
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| SUN Wei bin ,CHEN Hong ,LEI Xue qin ,ZHANG Fu qian ,LEI Chu zhao ,LI Rui biao ,ZHANG Ying han ,ZAN Lin sen.Polymorphisms of insulin-like growth factor binding protein-3 gene and its associations with several carcass traits in Qinchuan Cattle[J].Journal of Northwest Sci-Tech Univ of Agr and,2003,31(4):67-70. | |
| Authors: | SUN Wei bin CHEN Hong LEI Xue qin ZHANG Fu qian LEI Chu zhao LI Rui biao ZHANG Ying han ZAN Lin sen |
| Institution: | SUN Wei bin 1,CHEN Hong 1,2,LEI Xue qin 3,ZHANG Fu qian 1,LEI Chu zhao 1,LI Rui biao 1,ZHANG Ying han 1,ZAN Lin sen 1 |
| Abstract: | In this study,DNA samples from 13 Qinchuan cattle (Bos taurus) were analyzed with PCR RFLPs This locus showed three genotypes,namely AA,AB and BB after electrophoresis.Frequencies of the genotype AA,AB,BB and allele A,B were 0.69,0.31,0 and 0.845,0.155,respectively.This polymorphic locus of IGFBP 3 gene was at Hardy Weinberg equilibrium ( P >0.05).The genotypes of AA,AB,BB slightly affected high quality beef cutting of Qinchuan cattle.Striplion percentage,Tenderloin percentage,Ribeye percentage and Tender shoulder percentage were decreased with the genotypes of AA,AB and BB in Qinchuan cattle,but it was not significant ( P >0.05).Average ribeye area in individuals of AA genotype was significantly higher than that in individuals of BB genotype ( P <0.05),and beef fat content in individuals of genotype AB and BB was significantly higher than that in individuals of AA genotype ( P <0.01). |
| Keywords: | Qinchuan cattle high quality beef cutting yield insulin like growth factor binding protein 3 (IGFBP 3) gene DNA polymorphism |
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