| 瘦肉猪抗应激品系的选育与配套研究 |
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| 引用本文： | 帅起义,熊远著,邓昌彦.瘦肉猪抗应激品系的选育与配套研究[J].西北农业学报,2012,21(2):1-6. |
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| 作者姓名： | 帅起义 熊远著 邓昌彦 |
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| 作者单位： | 华中农业大学动物科技学院,武汉,430070 |
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| 基金项目： | 国家高新技术研究发展计划专项，国家科技支撑计划，公益性行业(农业)科研专项 |
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| 摘 要： | 采用分子标记辅助选择与常规育种技术相结合,以湖北白猪Ⅳ系为基础,培育抗应激品系.经过5个世代的选育,应激敏感基因已彻底清除；品系的各项经济性状达到并超过育种目标的要求.后备公母猪6月龄体质量分别为104.04 kg和97.83 kg,达90 kg日龄分别为164.76 d和169.42 d,活体背膘厚为1.59 cm和1.50 cm；经产母猪产仔数达12.82～12.86头；同胞测定猪达90 kg日龄166.61 d,饲料利用率2.76:1,胴体瘦肉率61.32％.以抗应激品系为母本,与高瘦肉率的皮特蓝、杜洛克公猪杂交,生产“皮×抗”、“杜×抗”杂优商品猪,达90 kg体质量日龄分别为156.59 d和160.35 d,饲料利用率分别为2.33:1和2.34:1,瘦肉率分别为64.09％和64.64％,肌内脂肪分别为2.56％和3.12％,是理想的杂优商品猪生产配套组合.
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| 关 键 词： | 抗应激品系 选育 瘦肉率 氟烷基因 |
Selection and Cross Combination Study on the Anti stress Lean Pig Line |
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| SHUAI Qiyi,XIONG Yuanzhu and DENG Changyan.Selection and Cross Combination Study on the Anti stress Lean Pig Line[J].Acta Agriculturae Boreali-occidentalis Sinica,2012,21(2):1-6. |
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| Authors: | SHUAI Qiyi XIONG Yuanzhu and DENG Changyan |
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| Institution: | (College of Animal Science,Huazhong Agricultural University,Wuhan 430070,China) |
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| Abstract: | Anti-stress lean pig line was bred by the combination use of molecular-assisted-selection and conventional breeding techniques with Hubei white pig as the basic population.After systematic breeding of 5 generations,stress-sensitive gene has been completely removed.Various economic traits of the anti-stress lean pig line have been reached and exceeded the breeding goal.For boar and gilts of anti-stress line,the body mass at the age of 6 months were 104.04 kg and 97.83 kg and the age reaching 90 kg was 164.76 d and 169.42 d with backfat thickness 1.59 cm and 1.50 cm respectively;and litter size of sows 12.82-12.86 heads.The age reaching 90 kg of sib test was 166.61d with feed conversion rate 2.76,and lean percentage in the carcass was 61.32%.The anti-stress line as female parents,the age reaching 90 kg of hybrids of "Pietrain×Kang" and " Duroc×Kang" was 156.59 d and 160.35 d with feed conversion rate 2.33 and 2.34,lean percentage 64.09% and 64.64%,and intramuscular fat 2.56% and 3.12%,respectively.The results showed that these hybrids were superior cross combinations for pig reproduction. |
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| Keywords: | Anti-stress line Selection Lean meat percentage Hal gene |
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