CAJ | 학술논문

本研究旨在探讨低蛋白日粮对生长猪生长性能和腹泻率的影响。试验选取初始体重为16kg左右的三元（杜×长×大）健康生长猪66头，采用单因子试验设计，分为对照组和试验组，每组设3个重复，每个重复11头；对照组日粮按照NRC（1998）推荐营养需要量配制，试验组在NRC推荐日粮粗蛋白水平上降低3.8个百分点，试验期30d。结果表明，试验组日增重比对照组增加了23．4g，提高幅度为4．6％（P〈0．05）；料肉比降低了0．22，降低幅度为10．8％（P〈0．05）；试验组腹泻率与对照组相比，有下降趋势，但无显著性差异（P〉0．05）。说明使用低蛋白日粮能提高生长猪的生长性能和饲料转化率，并在一定程度上能减少仔猪腹泻。
본연구지재탐토저단백일량대생장저생장성능화복사솔적영향。시험선취초시체중위16kg좌우적삼원（두×장×대）건강생장저66두，채용단인자시험설계，분위대조조화시험조，매조설3개중복，매개중복11두；대조조일량안조NRC（1998）추천영양수요량배제，시험조재NRC추천일량조단백수평상강저3.8개백분점，시험기30d。결과표명，시험조일증중비대조조증가료23．4g，제고폭도위4．6％（P〈0．05）；료육비강저료0．22，강저폭도위10．8％（P〈0．05）；시험조복사솔여대조조상비，유하강추세，단무현저성차이（P〉0．05）。설명사용저단백일량능제고생장저적생장성능화사료전화솔，병재일정정도상능감소자저복사。
This experiment was conducted to study the effect of low protein diet on growth performance and diarrhea rate in growing pigs. Sixty-six crossed-bred （Duroc ×Landrace ×Yorkshine） pigs, weighing an average of 16 kg, were randomly assigned to two dietary treatments with three replicates and eleven pigs with each pen. The groups received basic diet and trial diet respectively. The basic diets were formulated in accordance with NRC （Nutrient requirements of swine）（1998） nutritional requirements, while the trial diet protein level was 0.38% lower than the protein requirement of NRC（1998）, with adding essential amino acid. The feeding trial lasted for 30 days. The results showed that low protein diet raised the daily gain （ADG） and reduced F/G （Feed/Gain） significantly （P〈0.05）, but there were no significant effect on diarrhea rate （P〉0.05）. These results indicated that low protein diet can improve the performance of pigs and the utilization ratio of forage.