0~4周龄云岭红肉鸡赖氨酸适宜需要量的研究  

Study on suitable lysine requirement of Yunling red chicken aged 0~4 weeks

作　　者：章雨竹 钟兴文 华雪妃 孔凡虎 杜光英 甘文斌 陶冶 陶琳丽[1] ZHANG Yu-zhu;ZHONG Xing-wen;HUA Xue-fei;KONG Fan-hu;DU Guang-ying;GAN Wen-bin;TAO Ye;TAO Lin-li

机构地区：[1]云南农业大学动物科学技术学院,云南省动物营养与饲料重点实验室,云南昆明650201 [2]云南省兽药饲料检测所,云南昆明650201 [3]云南省饲料工业协会,云南昆明650201

出　　处：《饲料研究》2021年第3期34-38,共5页Feed Research

基　　金：云南省重大科技专项项目“高原优质肉鸡产业工程化技术研发集成与示范推广(项目编号:2016ZA008)”;国家自然科学基金项目“云南地方鸡肌肉化学成分近红外特征光谱产生机理及校正模型研究(项目编号:31760487)”;云南省现代农业产业技术体系建设项目“云南省禽蛋产业技术体系建设(项目编号:2017KJTX0017)”。

摘　　要：试验通过分析饲粮不同赖氨酸水平对云岭红肉鸡生长性能、氮沉积率及血液生化指标的影响,确定云岭红肉鸡饲粮赖氨酸的适宜需要量。采用单因素试验设计,将180只健康状况良好、体重相近的1日龄云岭红肉鸡随机分为5个处理组,每组3个重复,每个重复12只鸡。5组试验鸡饲喂的饲粮赖氨酸水平分别为0.85%、0.95%、1.05%、1.15%、1.25%。结果表明:赖氨酸水平对试验鸡的期末体重、全期增重、平均日增重及料重比有显著影响(P<0.05),当赖氨酸水平为1.15%时期末体重最大739.21 g,全期增重最大701.66 g,平均日增重最大24.19 g,料重比最低1.68。不同赖氨酸水平对丝氨酸、甘氨酸和组氨酸的表观代谢率影响显著(P<0.05)。对血清总氨基酸和血清尿素氮影响显著(P<0.05)。研究表明,0~4周龄云岭红肉鸡适宜赖氨酸水平最适量为1.15%。The optimum dietary lysine requirement for Yunling red chicken was determined by analyzing the effects of different dietary lysine levels on growth performance, nitrogen deposition rate and blood biochemical indexes of Yunling red chicken. Using a single factor test design, 180 one-day-old Yunling red chickens with good health and similar body weight were randomly divided into five treatment groups with three replications in each treatment. Each repeat was12 chickens, and the dietary lysine levels of the five groups of chicken were 0.85%, 0.95%, 1.05%, 1.15% and 1.25%. The results showed that under the test conditions, different lysine levels had significant effects on final body weight, wholeperiod weight gain, average daily gain and feed-to-gain ratio of tested chickens(P<0.05). When lysine level was 1.15%,the maximum body weight was 739.21 g, the maximum whole-period weight gain was 701.66 g, the average daily gain was 24.19 g, and the lowest feed to gain ratio was 1.68. It had significant effect on the apparent metabolic rate of serine,glycine and histidine(P<0.05). It had significant effect on serum total amino acids and serum urea nitrogen(P<0.05). The experiment indicated that the suitable lysine requirement of Yunling red chicken at the age of 4 weeks was 1.15%.

关 键 词：云岭红肉鸡 赖氨酸需要量 生长性能 氮沉积率 血液生化 

分 类 号：S831[农业科学—畜牧学]