The Effects Of Capsicum,Alicin And Several Herbs On The Bacteria-Inhibiting In Vitro And The Growth Performance Of Broilers

In this paper, Capsicum powder Alicin several kinds of herbs and plants exiting mainly in Xinjiang are studied singly and in groups about their inhibiting effects on E.colK S.typhimuriunK S.aureus and B.subtilis by the method of drug-soaked paper (All of the bacteria grow on Nutrient Agar No.3 and S.aureus also grow on Staphylococcus Medium 110) and their effects on the growth and health performance of broilers. Several initial conclusions are as follows:Capsicum has inhibiting effect on S.typhimurium (MIC(minimum inhibiting concentration): 12.5%) and S.aureus (Staphylococcus Medium 110) (MIC: 12.5%).Alicin has great inhibiting effect on E.coli (MIC: 12.5%) . S.typhimurium (MIC:3.13% S.aureus (MIC:<1.57%), S.aureus (Staphylococcus Medium 110) (MIC:1.57%) and B.subtilis (MIC:3.13%).In the bacteria-inhibiting experiment of single-herbs, The following herbs are strongly effective in inhibiting corresponding bacteria. Bark of Chinese Corktree root of Baikal Skullcap and Taraxacum mongolicum Hand -Mazz on E.coli (MIC: 1.57%); Root of Membranous MilkvetclK Indigowoad root on S.typhimurium (MIC:3.13%); Rhubarb Smoked Plunu root of Baikal Skullcap on S.aureus (Staphylococcus Medium 110) (MIC:1.57%,<1.57%,<<1.57%); Ash bark on B.subtilis (MIC:<1.57%).As for the plants existing mainly in Xinjiang, the following ones are effective in inhibiting corresponding bacteria. Liquorice rhizome on E.coli (MIC: 12.5%); Liquorice rhizome and the upper part of herb of alabrous Grazyweed on S.typhimurium (MIC:25%); The root of herb of alabrous Grazyweed on S.aureus (Staphylococcus Medium 110) (MIC:12.5%).In the bacteria-inhibiting experiment of herbs in groups, the following groups have strong inhibiting effect on corresponding bacteria. Group 2 and Group 8 on E.coli (MIC:3.13%); Group 6 on S.typhimurium (MIC:3.13%); Group 10 on S.aureus (MIC:3.13%); Group 9 and Group 10 on S.aureus (Staphylococcus Medium 110) (MIC:<<1.57%). The inhibiting effect of Group 9 and Group 10 on S.aureus (Staphylococcus Medium 110) is much stronger than the sum of their members' single inhibiting effect on the same bacteria , which tells us that coordinating effect exits in the experiment.0.5%Capsicum powder 0.01% Alicin . 2% herbs of Group A 3.2% herbs of Group B in their corresponding feed can respectively increase the weight of broilers8.45% , 5.65% 7.15%, 0.64%more than control group (P<0.01); Compared with control group, they repectively change the intake of broilers -3.06% , -6.28% . -7.95% 9.99%; They also repectively change the feed conversion efficiency of broilers -11.47% -11.9% -14.04%, 9.35%. From the above results ,we can conclude that these herbs can improve the growth performance of broilers to different extent.