当归补血散对高龄蛋鸡生产性能及蛋品质的影响

Effects of Dangguibuxuesan on production performance and egg quality of aged laying hen

120只390日龄海兰褐蛋鸡,随机分为4组。以日粮中分别添加0.5%、1%、1.5%剂量的当归补血散饲喂Ⅰ、Ⅱ、Ⅲ组鸡群,Ⅳ组为对照组。连续给药15 d。分别观察各组每天的产蛋率、日产蛋量等生产性能指标;于第8、15、22、30天各组随机收集10枚蛋测蛋品质指标。结果:试验组Ⅱ、Ⅲ的产蛋率比对照组提高了8.80%(P<0.01)、4.99%(P<0.05);日产蛋量均与对照组差异极显著(P<0.01),分别提高了12.12%、6.82%;料蛋比与对照组相比降低了12.46%(P<0.01)、11.42%(P<0.05)。Ⅱ组的蛋形指数与对照组有显著提高(P<0.05);Ⅰ和Ⅱ组的蛋壳厚度与对照组有显著提高(P<0.05)。其余指标与对照组差异不大(P>0.05)。结论:1%剂量可以明显提高高龄蛋鸡的生产性能和蛋品质。

120 390-day-old aged laying hens were devided into 4 groups （Group I , lI, gI, IV ） and fed with basal diet supplemented with 0.5 %, 1.0 %, 1.5 % Dangguibuxuesan.The experiment lasted 15 days.The performance indexs including the laying rate and egg weight were studied. The results indicated that the laying rate in Group II and III were 8.80 % （P 〈 0.01） and 4.99 %（P 〈 0.05）,the day-egg weigh were 12.12 % and 6.82 % higher than that of the control group（P 〈 0.01）respectively;the feed conversion rate of group II and group III were 12.46 %（P 〈 0.01 ） and 11.42 %（P 〈 0.05） less than that of the control group.The egg-shaped index of group II was higher than that of the control group（P 〈 0.05） ;the eggshell thickness in group I and group II were higher than that of the control group（P 〈 0.05）.No significant difference in other indexs was observed among the groups （P 〉 0.05）.In conclusion,Dangguibuxuesan at the dosage of 1.0 % could obviously improve the performance and the egg quality of aged laying hens.