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      2. 鄂通兩頭烏與通城豬生長、胴體、肉質性狀及血液生理生化指標的比較
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        國家自然科學基金重大項目(31790414); 國家科技支撐計劃項目(2015BAD03B02)


        Comparative analysis of growth,carcass,meat quality traits and blood physiological and biochemical indexes of Etong Two-End-Black and Tongcheng pigs
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          摘要:

          為評價以通城豬為母本與瘦肉型大白豬雜交培育的新品種鄂通兩頭烏的培育效果,對鄂通兩頭烏和通城豬進行同期對比試驗,測定生長性狀、胴體性狀(胴體長、背膘厚、眼肌面積和瘦肉率等)、肉質性狀(肉色、滴水損失、大理石紋和肌內脂肪含量等)以及血液生理生化指標。結果顯示,鄂通兩頭烏日增重((596.27±90.24)g/d)極顯著高于通城豬((513.28±90.31) g/d,P<0.01),瘦肉率(49.56%±2.21%)極顯著高于通城豬(43.47%±1.39%,P<0.01),背膘厚((34.73±0.94) mm)極顯著低于通城豬((38.80±0.96) mm,P<0.01);通城豬大理石紋評分與肌內脂肪含量分別為3.47±1.16、3.45%±1.11%,與通城豬相比,鄂通兩頭烏肉質性狀中除了肌內脂肪含量(2.72%±0.87%)有降低外,其他肉質性狀指標均無顯著性差異;兩品種僅部分血液生理生化指標有顯著差異。結果表明,鄂通兩頭烏在保留通城豬優良肉質性狀的同時其生長和胴體性狀得到了有效改良。

          Abstract:

          Tongcheng pig is an excellent representative of local pig breeds in China. It has the advantages of good motherhood,tolerance to roughage,and tender,juicy and delicious meat,but it also has the problems of slow growth,thick back fat and low lean meat rate. Therefore,in order to make use of the good meat quality of Tongcheng pig and improve its disadvantageous traits,the lean meat type large white pig was introduced to cultivate a new breed of Etong Two-End-Black. To evaluate the breeding effect of Etong Two-End-Black(Tongcheng pig female×lean-meat large white male),the growth traits,carcass traits(carcass length,backfat thickness,loin eye area,percentage of lean meat,etc.),meat quality traits(meat color,dripping loss,marbling and intramuscular fat content,etc.) and blood physiological and biochemical indexes were measured in Etong Two-End-Black and Tongcheng pigs. The results showed that the daily gain of the Etong Two-End-Black pig was (596.27±90.24) g/d,which was significantly higher than that of the Tongcheng pig ((513.28±90.31) g/d,P<0.01). The lean meat percentage of Etong Two-End-Black was 49.56%±2.21%,which was significantly higher than that of Tongcheng(43.47%±1.39%,P<0.01). The backfat thickness of Etong Two-End-Black was (34.73±0.94) mm,which was significantly lower than that of Tongcheng ((38.80±0.96) mm,P<0.01). The Marbling score and intramuscular fat content of Tongcheng were 3.47±1.16 and 3.45%±1.11%,respectively. There were no significant differences in other meat quality traits between the two breeds,except for intramuscular fat content (2.72%±0.87%),which was lower in Etong Two-End-Black. In addition,only part of the blood physiological and biochemical indexes between the two breeds were significant different. The results illustrated that Etong Two-End-Black has improved the growth and carcass traits while retaining the excellent meat quality traits of Tongcheng pigs. Therefore,the study can provide scientific basis for further popularization and utilization of Etong Two-End-Black.

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        付明,徐三平,吳平波,余新良,張宇,王文君,李勝,鄭建保,徐學文,張靜,彭中鎮,劉榜.鄂通兩頭烏與通城豬生長、胴體、肉質性狀及血液生理生化指標的比較[J].華中農業大學學報,2020,39(5):35-40

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        • 收稿日期:2020-03-03
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        • 在線發布日期: 2020-10-05
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