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    束刚, 李威, 高萍, 王丽娜, 王松波, 张守全, 吴同山, 李岩, 江青艳, 朱晓彤. 蓝塘猪与长白猪正反交F1代胴体性状和肉品质的比较[J]. 华南农业大学学报, 2015, 36(5): 1-6. DOI: 10.7671/j.issn.1001-411X.2015.05.001
    引用本文: 束刚, 李威, 高萍, 王丽娜, 王松波, 张守全, 吴同山, 李岩, 江青艳, 朱晓彤. 蓝塘猪与长白猪正反交F1代胴体性状和肉品质的比较[J]. 华南农业大学学报, 2015, 36(5): 1-6. DOI: 10.7671/j.issn.1001-411X.2015.05.001
    shu
    SHU Gang, LI Wei, GAO Ping, WANG Lina, WANG Songbo, ZHANG Shouquan, WU Tongshan, LI Yan, JIANG Qingyan, ZHU Xiaotong. A comparison of the carcass trait and meat quality of the reciprocal hybrid F1 generations of Lantang and Landrace pigs[J]. Journal of South China Agricultural University, 2015, 36(5): 1-6. DOI: 10.7671/j.issn.1001-411X.2015.05.001
    Citation: SHU Gang, LI Wei, GAO Ping, WANG Lina, WANG Songbo, ZHANG Shouquan, WU Tongshan, LI Yan, JIANG Qingyan, ZHU Xiaotong. A comparison of the carcass trait and meat quality of the reciprocal hybrid F1 generations of Lantang and Landrace pigs[J]. Journal of South China Agricultural University, 2015, 36(5): 1-6. DOI: 10.7671/j.issn.1001-411X.2015.05.001
    shu

    蓝塘猪与长白猪正反交F1代胴体性状和肉品质的比较

    A comparison of the carcass trait and meat quality of the reciprocal hybrid F1 generations of Lantang and Landrace pigs

      摘要
    • 摘要:
      目的 分别以蓝塘猪作为父本和母本与长白猪杂交，比较其F1代胴体和肉品质的差异.
      方法 以广东地方品种蓝塘猪与外来品种长白猪为模型，采用正反交试验分别获得杂交F1代，即蓝×长猪和长×蓝猪，并采用相同日粮饲养至180日龄，比较蓝×长猪和长×蓝猪的生长性能.试验结束后每个品种分别选择接近平均体质量的8头肥育猪(公母各半)，屠宰测定其胴体性状，并分析背最长肌的肉品质性状和肌球蛋白重链mRNA表达水平差异.
      结果和结论 蓝×长猪和长×蓝猪的胴体性状无明显差异.但从肉品质来看，蓝×长猪的肌内脂肪含量显著高于长×蓝猪，而且公猪显著高于母猪(P＜0.05).蓝×长猪花生四烯酸(C20: 4)的比例显著高于长×蓝猪，但杂交后代肌纤维类型和肌苷酸含量均无显著差异.2品种和性别间MyHC-Ⅰ、MyHC-Ⅱa、MyHC-Ⅱb和MyHC-Ⅱx基因mRNA表达均无显著差异.由上述结果可知，以蓝塘猪为父本、长白猪为母本得到的杂交F1代肌内脂肪含量和花生四烯酸比例均较高，说明蓝×长猪可能具有更优的肉品质和营养价值.

       

      Abstract:
      Objective This study investigated the carcass trait and meat quality of the F1 generation of a Chinese indigenous pig breed Lantang and a typical lean pig breed Landrace.
      Method Each group contained 8 pigs with 4 males and 4 females.These pigs were fed with the same diet to 180 days of age and slaughted to compare the carcass trait, meat quality and myosin heavy chain mRNAs expression in longis-simus dorsi muscles.
      Result and conclusion There were no significant differences of carcass trait between Lantang × Landrace pigs and Landrace × Lantang pigs.As for the meat quality, the intramuscular fat of longissimus dorsi muscle in Lantang × Landrace pigs was significantly higher than that in Landrace × Lantang pigs.The intramuscular fat of longissimus dorsi muscle in barrows was also significantly higher than that in sows.According to the fatty acids profile in longissimus dorsi muscle, it could be found that the Lantang × Landrace pigs had a higher percentage of arachidonic acid(C20: 4)than Landrace × Lantang pigs.However, no significant differences of the fiber type and inosine monophosphate content in longissimus dorsi muscle were found among the F1 generations.Further more, the mRNA expression of My-HC-Ⅰ, MyHC-Ⅱa, MyHC-Ⅱb or MyHC-Ⅱx genes in longissimus dorsi muscle showed no significant differences between breeds, genders and breed × gender.These results demonstrate that the Lantang × Landrace pigs have a higher intramuscular fat and arachidonic acid concent, which suggest that the Lantang × Landrace pigs may have a better meat quality and nutrient value.

       

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