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首页> 外文期刊>Italian journal of animal science >Effect of genotype, sex and slaughter weight on veal Longissimus muscle area measured by ultrasound and planimeter
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Effect of genotype, sex and slaughter weight on veal Longissimus muscle area measured by ultrasound and planimeter

机译：超声和平面仪测量基因型，性别和屠宰体重对小牛经肌的面积的影响

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The aim of this research was to determine effect of genotype (Holstein, Simmental and their crossbreeds), sex and slaughter weight groups (SW1=150-160kg and SW2=190-200kg) on veal Longissimus muscle area (LMA). Between the 12th and the 13(th) rib, two ultrasound LMA (ULMA) images were taken from each animal and carcass LMA (CLMA) traced on transparent foil was measured by planimeter. For both measures, Simmental calves had larger LMA than Holstein (P<0.001) and crossbreeds (P<0.05). Male and female calves did not differ significantly in ULMA and CLMA. Calves of SW2 group had larger LMA (P<0.0001) than SW1 group. High correlation coefficient between ULMA and CLMA was determined in this research. Veal LMA was significantly affected by genotype and slaughter weight. According to high correlation coefficients, ultrasound can be useful in estimating carcass traits of cattle at early age.
机译：这项研究的目的是确定基因型（荷尔斯泰因，西门塔尔及其杂交品种），性别和屠宰体重组（SW1 = 150-160kg和SW2 = 190-200kg）对小牛肉Longissimus肌肉面积（LMA）的影响。在第12肋和第13肋之间，从每只动物中拍摄了两个超声LMA（ULMA）图像，并通过平面仪测量了在透明箔片上绘制的car体LMA（CLMA）。对于这两种措施，西门塔尔小牛的LMA均大于荷斯坦（P <0.001）和杂种（P <0.05）。雄性和雌性犊牛在ULMA和CLMA中没有显着差异。 SW2组的犊牛比SW1组的LMA大（P <0.0001）。这项研究确定了ULMA和CLMA之间的高相关系数。小牛肉LMA受基因型和屠宰体重的影响很大。根据高相关系数，超声可用于估算早期牛的car体性状。

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