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首页> 外文期刊>Tropical Animal Health and Production >Effects of dietary restriction followed by high dietary energy or protein on compensatory growth of Ashanti Black x Large White crossbred weaner pigs
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Effects of dietary restriction followed by high dietary energy or protein on compensatory growth of Ashanti Black x Large White crossbred weaner pigs

机译：饮食限制，高饮食能量或高蛋白对阿散蒂黑×大白杂交断奶仔猪代偿性生长的影响

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The study determined the effect of re-alimenting dietary protein or energy on compensatory growth. Eighteen Ashanti Black x Large White crossbred weaner pigs (7.5 +/- 0.30 kg) were randomly assigned to one of three dietary treatments in a completely randomized design resulting in three replicate pens per treatment (n=3) and two pigs per pen. In the first treatment, pigs were fed ad libitum a diet containing 12.0 MJ/kg of metabolizable energy (ME) and 14.4 % crude protein (CP) (maintenance diet) for 56 days. In the second and third dietary treatments, pigs were fed the maintenance diet for the initial 28 days and then switched to a high protein (17.4 % dry matter (DM) CP; protein) or high (14.0 MJ/kg DM; energy) diet for the rest of the 28-day period. Dry matter intake and growth performance were similar (P=0.52) among treatments during the first 28 days of restrictive feeding, but pigs realimented with the protein diet achieved superior (P=0.004) DM intake, average daily gain (ADG), and feed efficiency than those fed the maintenance diet or re-alimented with the energy diet in the re-alimentation period. At the end of the entire 56-day period, pigs re-alimented with the protein diet had higher (P=0.01) live weight gains and ADG compared with those fed the maintenance diet or re-alimented with the energy diet, but DMintake was similar (P=0.66) among treatments. It was concluded that re-alimentation with protein rather than energy can improve compensatory growth of Ashanti Black x Large White crossbred weaner pigs.
机译：该研究确定了饮食中蛋白质或能量的补充对代偿性生长的影响。以完全随机设计将18只Ashanti黑色x大白杂交断奶仔猪（7.5 +/- 0.30 kg）随机分配到三种饮食处理中的一种，导致每种处理重复使用三只围栏（n = 3），每头隔离两只猪。在第一个治疗中，自由饲喂猪的日粮含有12.0 MJ / kg的代谢能（ME）和14.4％的粗蛋白（CP）（维持日粮），为期56天。在第二和第三次饮食治疗中，在开始的28天里给猪饲喂维持饮食，然后换成高蛋白（17.4％干物质（DM）CP;蛋白质）或高蛋白（14.0 MJ / kg DM;能量）的饮食。在28天的剩余时间内。在限制性饲喂的前28天，各处理中干物质的摄入量和生长性能相似（P = 0.52），但是采用蛋白质饮食的猪的DM摄入量，平均日增重（ADG）和饲料具有较高的（P = 0.004）。效率高于在维持饮食期间补充维持饮食或以能量饮食进行饮食的人。在整个56天的周期结束时，与饲喂维持饲粮或饲喂能量饲粮的猪相比，饲喂蛋白质饲喂的猪具有更高的（P = 0.01）体重增加和ADG，但DMintake治疗之间相似（P = 0.66）。结论是，用蛋白质而非能量进行再营养可以改善Ashanti Black x Large White杂交断奶仔猪的代偿性生长。

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