CAJ | 학술논문

试验研究了在低能日粮中，添加不同剂量复合酶对肉鸡血液指标和微生物菌群的影响。试验将320只1日龄AA+肉鸡分为4组，每组8个重复，每个重复10只。第Ⅰ组为正对照组，饲喂常规饲粮；第Ⅱ组为负对照组，配方中增加了杂粕和麦类原料的用量，同时降低ME 210 kJ/kg；第Ⅲ组和第Ⅳ组为常规剂量加酶组和高剂量加酶组，即分别在负对照组饲粮的基础上添加0.02%和0.2%复合酶，试验期为42 d。结果表明，负对照组甲状腺素显著低于其它3组(P<0.05)；高剂量加酶组胰岛素含量显著高于其它3组(P<0.05)；肉鸡其它各血清激素含量在4种不同日粮处理组之间未见显著性差异(P>0.05)。不同剂量的复合酶制剂对肉鸡空肠中大肠杆菌数没有显著性影响(P>0.05)，两个加酶组乳酸杆菌数显著高于两个对照组(P<0.05)。研究表明，饲粮中添加0.02%和0.2%复合酶对肉鸡血清激素含量和微生物菌群均具有很好的改善作用。
시험연구료재저능일량중，첨가불동제량복합매대육계혈액지표화미생물균군적영향。시험장320지1일령AA+육계분위4조，매조8개중복，매개중복10지。제Ⅰ조위정대조조，사위상규사량；제Ⅱ조위부대조조，배방중증가료잡박화맥류원료적용량，동시강저ME 210 kJ/kg；제Ⅲ조화제Ⅳ조위상규제량가매조화고제량가매조，즉분별재부대조조사량적기출상첨가0.02%화0.2%복합매，시험기위42 d。결과표명，부대조조갑상선소현저저우기타3조(P<0.05)；고제량가매조이도소함량현저고우기타3조(P<0.05)；육계기타각혈청격소함량재4충불동일량처리조지간미견현저성차이(P>0.05)。불동제량적복합매제제대육계공장중대장간균수몰유현저성영향(P>0.05)，량개가매조유산간균수현저고우량개대조조(P<0.05)。연구표명，사량중첨가0.02%화0.2%복합매대육계혈청격소함량화미생물균군균구유흔호적개선작용。
The experiment was conducted to investigate the effect of low energy diets supple-mented with different dosage of compound enzyme on the serum hormones concentration and mi-crobial community of broilers. Three hundred and twenty broilers (1 day-old) were randomly as-signed to four treatments with eight replicates of ten broilers each. The positive control (PC) treatment was fed a corn-soybean meal diet. The diet of negative control (NC) treatment was re-duced by ME 210 kJ/kg, and the content of miscellaneous meal and wheat was increased in this treatment. The conventional dose of enzyme(CDE) and super dose of enzyme(SDE) treat-ment were respectively fed the NC diet with different dosages of compound enzyme 0.02% and 0.2%. The trial lasted for 42 d. The results showed that the thyroxine of broilers fed the NC treatment was significantly lower than other three treatments(P<0.05); the insulin of broilers fed the SDE diet was significantly higher than the other three treatments(P<0.05). No significant dif-ferences were observed in the serum hormones concentration of broilers fed different diets(P>0.05). As for Lactobacillus of microbial com-munity, two added enzyme treatments were significantly higher than the NC and PC treat-ment(P<0.05). No significant differences in E. Coli. were observed(P>0.05). The experiment proved that the serum hormones concentration and microbial community of broilers were im- proved significantly as the broilers fed the diet containing complex enzyme at the level of 0.02%and 0.2%.