Eeffction Of Chinese Herb Feed Additive On Performance And The Meat Quality Of Meat Duck

Six hundred healthy ducks(Beijing meat duck)of same-day-old were randomly allocated to either the Chinese herb group or the antibiotic/chemical compound drug group in the production of non-polluted meat duck.Each treatment group was replicated 6 times.To investigate the effect of natural plant feed additive on growth performance,experiments of feeding,slaughter and analysis of meat quality had been carried out.The results show:1.The effection of natural plant feed additives on the growth of meat duck.[1]The day weight-gain of ducks of 0～14-day-old,15～32-day-old and 0～32-day-old in the Chinese herb group increased respectively by 1.14% (P＞0.05),10.51%(P＜0.01)and 17.39%(P＜0.01)compared to that of ducks in the antibiotic/chemical compound drug group.The feed conversion rate (FCR)of 0～14-day-old ducks in the Chinese herb group was a little higher than the other.But the differences between the two groups were not significant.The FCR of 15～32-day-old and 0～32-day-old ducks in the Chinese herb group decreases by 16.5%(P＜0.01),11.74(P＜0.01) respectively compared to that of ducks in the antibiotic/chemical compound drug group.[2]Compared with the antibiotic group,the death rate had decreased 76.11% (P＜0.01)2.The effection of natural plant feed additives on the meat quality of duck.[3]Compared with those of the antibiotic/chemical compound group,physical and chemical characteristics of chest muscle including pH,color appearance, outflow ratio,tenderness and ripeness have no significant difference in ducks of the Chinese herb group.[4]Compared with the antibiotic group,the concentration of crude fat of the chest and thigh muscle in the Chinese herb group increased by 1.30% (P＞0.05),25.84%(P＜0.05)respectively;the muscle fiber diameter increased by 8.03%(P＞0.05),and decreased by 5.97%(P＞0.05)respectively. Water contents decreased by1.14%(P＞0.05)and 3.52%(P＞0.05).Crude protein increased by 1.03%(P＞0.05)and amino acid increased by 3.05%(P＞0.05)[5]The sum of saturated,the concentration of polyunsaturated fatty acid and essential fatty acid increased 1.71%(P＞0.05),5.64%(P＞0.05)and 6.88%(P＞0.05)respectively;the monounsaturated fatty acid decreased 3.92%(P＞0.05);the concentration of delicious amino acid increased by 0.5 (P＞0.05),essential amino acid increased 0.20(P＞0.05)respectively.In conclusion,natural plant feed additives mainly containing Hippophae rhamnoides Linn.ssp yunnanensis,Safflower,Diospyros KaKi and Ginkgo biloba can be applied in meat duck production.Compared with the feedstuff containing Zinc Bacitracin Powder, it can apparently decrease death rate,increase day weight-gain,the feed conversion rate and intermuscular crude fatty content,accelerate the growth and development. The plan feed additives have much similar effect on improving the meat quality...