虫草饲料添加剂对蛋鸭生产性能及鸭蛋品质的影响

Effects of Cordyceps Feed Additive on Production Performance and Egg Quality of Laying Ducks

[目的]观察虫草饲料添加剂"虫草欣康"对蛋鸭的生长性能、产蛋率及鸭蛋品质的影响。[方法]选择270只处于产蛋期的蛋鸭,随机分为3组。对照组饲喂基础日粮,试验I组饲喂含0.1%虫草添加剂的基础日粮,试验II组饲喂含0.4%虫草添加剂的基础日粮。试验期28 d。试验期间,定期观察记录蛋鸭的体重和生长状况,检测鸭蛋外部品质和营养指标。[结果]与对照组相比,试验I和II组蛋鸭体重略有增加,产蛋率分别提高1.07%和2.15%,蛋重分别提高3.95%和4.16%,料蛋比分别降低了2.54%和4.23%;鸭蛋蛋形、蛋壳厚度稳定;在试验I和II组,鸭蛋蛋白质含量分别提高了5.55%和17.15%,胆固醇含量分别下降了11.79%和42.14%,卵黄中IgY含量分别提高了13.20%和27.97%,卵磷脂含量分别提高了5.13%和11.69%。[结论]虫草饲料添加剂能够增加蛋鸭的体重,提高蛋鸭产蛋率以及鸭蛋品质。

[Objective] To investigate effects of Cordyceps feed additive on growth performance,laying rate and egg quality of laying ducks.[Method] A total of 270 healthy ducks in laying period were randomly divided into three groups,90 ducks in each group.The ducks in the control group,group I and group II were fed common basal diet,basal diet containing 0.1% Cordyceps feed additive and basal diet containing 0.4% Cordyceps feed additive,respectively.The trial lasted for 28 d.During the whole trial,the ducks were weighed and the growth of ducks was observed at an interval of 7 d.The exterior quality and the nutritive indexes of duck eggs were determined.[Result] After experiment,the body weights of ducks in the group I and group II were increased and higher than that in the control group.In the group I and group II,the laying rate was increased by 1.07%and 2.15%,respectively;the egg weight was increased by 3.95% and 4.16%,respectively;and the feed to egg ratio was decreased by 2.54% and 4.23%,respectively.The egg shape and egg shell thickness were stable and consistent between control group and experimental group.The protein content of the duck eggs in the group I and group II was increased by 5.55% and 17.15%,respectively;the cholesterol content was decreased by 11.79% and 42.14%,respectively;the IgY level was increased by 13.20% and 27.97%,respectively;and the lecithin content was increased by 5.13% and 11.69%,respectively.[Conclusion] The Cordyceps feed additive can increase the body weight and laying rate of laying ducks and improve the quality of duck eggs.