CAJ | 학술논문

试验研究了在玉米-豆粕型日粮中添加脂肪酶对肉鸡生产性能和肠道菌群的影响，为脂肪酶在饲料工业中的合理应用提供试验依据.选取1日龄健康AA肉鸡400只，随机分成对照组和3个试验组（添加0．01％、0．02％和0．03％的脂肪酶）进行研究.结果表明，与对照组相比，试验1组、2组和3组平均日增重均显著提高（P<0.05），试验3组前期和后期都提高最多，分别为5.63%和7.92%.试验组料肉比有明显下降，试验3组达到显著水平（P<0.05），前期和后期分别为3.82%和2.38%.4～6周龄试验组平均日采食量有提高的趋势（P＞0．05）.分析显示日粮中添加0．03％的脂肪酶效果最好.与对照组相比，各试验组都显著提高了肉鸡空肠乳酸菌数量（P＜0．05），分别增加了19．89％、9．17％、20．21％，各试验组之间乳酸菌数量差异不显著（P＞0．05）.
시험연구료재옥미-두박형일량중첨가지방매대육계생산성능화장도균군적영향，위지방매재사료공업중적합리응용제공시험의거.선취1일령건강AA육계400지，수궤분성대조조화3개시험조（첨가0．01％、0．02％화0．03％적지방매）진행연구.결과표명，여대조조상비，시험1조、2조화3조평균일증중균현저제고（P<0.05），시험3조전기화후기도제고최다，분별위5.63%화7.92%.시험조료육비유명현하강，시험3조체도현저수평（P<0.05），전기화후기분별위3.82%화2.38%.4～6주령시험조평균일채식량유제고적추세（P＞0．05）.분석현시일량중첨가0．03％적지방매효과최호.여대조조상비，각시험조도현저제고료육계공장유산균수량（P＜0．05），분별증가료19．89％、9．17％、20．21％，각시험조지간유산균수량차이불현저（P＞0．05）.
The effect of lipase enzyme on growth performance and intestinal flora of broilers of broilers are studied, providing the experimental basis for the reasonable application of lipase in the feed industry. Experiment chose 400 one-day health AA broilers,randomly allocated to 4 groups including control group and three test groups (added 0.01%,0.02% and 0.03% in the diets of the lipase). Compared with the control group,the broiler body weight of Group 1,Group 2,Group3 increased significantly(P<0.05). The Group 3 increased 5.63% and 7.92%in early period(1~21 d) and later period(22~42 d),while the feed conversion ratio decreased 3.82%and 2.38%(P<0.05) respectively. The growth performance of Group 3 adding the 0.03%lipase was best. Each treatment group significantly increased the Lactobacillus number in jejunum,compared with control group(P<0.05),increased by 19.89%,9.17%,20.21%,the Lactobacillus number difference between treatment groups was not significant.