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【摘要】 |
为研究日粮不同能量和蛋白质水平对乌金猪肌肉组织能量代谢的影响,试验选取体重约15 kg的乌金猪108头,随机分为6组,下设3个重复,每个重复6头,在15～30,>30～60,>60～100 kg体重阶段分别饲喂不同能量和蛋白质水平日粮,能量水平为:高消化能(HE,14.22 MJ/kg)、中消化能(ME,12.89 MJ/kg)和低消化能(LE,11.74 MJ/kg),蛋白水平为:高蛋白质(HP,18%,16%,14%)、中蛋白质(MP,16%,14%,12%)和低蛋白质(LP,14%,12%和10%),在体重30,60,100 kg体重时分批屠宰,取血液、肝脏及肌肉组织样品,测定血糖、肝糖原、肌糖原和肌肉中乳酸的含量及肌肉中乳酸脱氢酶、钠钾ATP酶(Na+K+-ATP酶)和钙镁ATP酶(Ca2+Mg2+-ATP酶)的活性。结果表明,乌金猪血糖、肝糖原、肌糖原和肌肉中乳酸的含量及肌肉中乳酸脱氢酶、Na+K+-ATP酶和Ca2+Mg2+-ATP酶的活性随日粮能量和蛋白质水平的升高而升高;在60 kg体重时,高能量和高蛋白质日粮组乌金猪上述各项指标均明显升高(P<0.05),在100 kg体重时,高能量和高蛋白... |
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【英文摘要】 |
The aim of the study was to investigate the effects of dietary energy and protein levels on energy metabolism of muscle tissue in Wujin pigs.One hundred and eight Wujin pigs were randomly allotted into six groups fed diet containing different energy or protein levels.There were eighteen pigs in each group with three replicates which contained six pigs for each replicate.The dietary energy and protein levels were high energy(HE,14.22 MJ/kg),medium energy(ME,12.89 MJ/kg) and low energy(LE,11.74 MJ/kg),high pr... |
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