日粮中添加腐植酸钠对肉仔鸡成活率及生长性能的影响

Effects of Sodium Humate on Survival Rate and Growth Performance of Broiler Chickens

本试验旨在研究日粮中添加不同水平腐植酸钠对肉仔鸡成活率及生长性能的影响。选用1000只健康科宝商品肉仔鸡，随机分为5组，每组5个重复，每个重复40只鸡。对照组饲喂基础日粮，Ⅰ～Ⅳ组在基础日粮中分别添加黄霉素、1．0％腐植酸钠、2．0％腐植酸钠、1．0％腐植酸钠＋黄霉素。试验期49 d。结果表明，与对照组相比，各组肉仔鸡成活率均有明显提高，Ⅲ组平均日采食量显著提高（P〈0．05），Ⅱ、Ⅳ组平均日增重显著提高（P〈0．05），Ⅱ、Ⅲ、Ⅳ组料重比显著降低（P〈0．05）。综上所述，日粮中添加腐植酸钠可提高肉仔鸡的成活率，改善其生长性能，其中以添加1．0％腐植酸钠效果最佳，同时与黄霉素具有较好的配伍作用。

This study aimed to investigate the effects of adding different levels of sodium humate on survival rate and growthperformance of broiler chickens. One thousand Kebao healthy broiler chickens were selected and randomly divided into 5groups,with 5 replicates for each group and 40 chickens for each replicate. The chickens in control group were fed a basal diet,and the chickens in groups Ⅰ to Ⅳ were fed the basal diets supplemented with flavomyein, 1.0% sodium humate,2.0% sodiumhumate, 1.0 % sodium humate with flavomyein,respectively. The experiment lasted for 49 days. The results showed that com-pared with the control group, the survival rate of chickens was increased in experimental group, the average daily feed intake ingroup m was significantly increased （P〈0.05）,the average daily gain in groups Ⅲ and IV was significantly increased （P〈0.05） ,the feed/gain in groups Ⅱ ,Ⅲ and IV was significantly decreased （P〈0.05）. In conclusion,the basal diet supplementedwith sodium humate could improve the survival rate and growth performance of broiler chickens, and the optimal supplementallevel of sodium humate was 1.0% ,and flavomycin was used at the same time had the better effect.