CAJ | 학술논문

为研究肉种鸡日粮中添加紫花苜蓿对其生产性能和养分消化率的影响，本试验选用体重1.8 kg左右、15周龄的白羽肉种鸡30只，采用单因素完全随机试验设计，按照体重相近原则平均分为2个组。其中A组为对照组，饲喂基础日粮；B组为试验组，饲喂基础日粮+5%紫花苜蓿。结果表明，A组和B组间肉种鸡初体重差异不显著（P＞0.05）；由于采用限饲喂养，因此两组间在日采食量方面的差异不显著（P＞0.05）；B组与A组相比，日增重显著降低（P ＜0.05）；B组料重比略高于A组，但差异不显著（P ＞0.05）。 B组与A组相比，干物质消化率差异不显著（P ＞0.05）；A组粗脂肪、磷、粗蛋白质的消化率均略高于B组，但差异不显著（P＞0.05）；B组粗纤维和粗灰分的消化率均略高于A组，但差异不显著（P＞0.05）；B组钙的消化率与A组相比，显著降低（P＜0.05）。
위연구육충계일량중첨가자화목숙대기생산성능화양분소화솔적영향，본시험선용체중1.8 kg좌우、15주령적백우육충계30지，채용단인소완전수궤시험설계，안조체중상근원칙평균분위2개조。기중A조위대조조，사위기출일량；B조위시험조，사위기출일량+5%자화목숙。결과표명，A조화B조간육충계초체중차이불현저（P＞0.05）；유우채용한사위양，인차량조간재일채식량방면적차이불현저（P＞0.05）；B조여A조상비，일증중현저강저（P ＜0.05）；B조료중비략고우A조，단차이불현저（P ＞0.05）。 B조여A조상비，간물질소화솔차이불현저（P ＞0.05）；A조조지방、린、조단백질적소화솔균략고우B조，단차이불현저（P＞0.05）；B조조섬유화조회분적소화솔균략고우A조，단차이불현저（P＞0.05）；B조개적소화솔여A조상비，현저강저（P＜0.05）。
This study aimed to investigate the effects of adding alfalfa in broiler breeder diets on production perfor-mance and nutrient digestibility.30 white feather broiler breeders with 1.8 kg body weight of 15-week-old were selected and divided into two groups as single factor and completely randomized design,in accordance with the principles of similar weight.Group A (control)was the basal diet;Group B (the experimental group)was 5% alfalfa + basal diet.The results showed that the differences between group A and group B in weight of broiler breeder body was not significant in the pre-vious period (P>0.05).The differences in terms of feed intake between the two groups were not significant as a result of feed restriction(P > 0.05);average daily gain of group B was significantly decreased(P < 0.05),compared with group A;feed conversion ratio of group B was slightly higher than that of group A,but the difference was not significant(P>0.05). The differences of the dry matter digestibility were not significant between group A and group B (P > 0.05);P,fat and crude protein digestibility of group A were slightly higher than those of group B,but the difference was not significant(P>0.05).Crude fiber and crude ash digestibility of group B were slightly higher than those of group A,but the difference was not significant(P>0.05);calcium digestion rate of group B was significantly lower than that of group A(P<0.05).