摘要
用微生态制剂将饲料充分发酵，发酵料按20％、30％、40％、50％、60％、70％、80％、90％、100％的比例与未发酵料混合全过程饲喂海兰蛋鸡，并设只饲喂未发酵料的对照组。分别在免疫传染性喉气管炎疫苗和新城疫Ⅳ系苗后测定T细胞在淋巴细胞中的比例和抗体水平。在此次试验中对照组与试验组及试验组闻免疫器官重量差异不显著，这一点与以往的试验结果有所差异，但是T细胞在淋巴细胞中的比例和抗体水平上试验组与对照组却存在显著差异，这方面与以往试验结果相符。另外发现各处理组鸡蛋中脂肪含量和胆固醇含量差异显著，发酵饲料占总饲料量80％-100％时胆固醇含量下降到最低；对鸡蛋内蛋白质、干物质重和蛋重进行了测定，结果各处理组闻其含量差异不显著；发酵饲料的脂肪含量和胆固醇含量都显著下降。但是随着发酵饲料比例的增大，蛋鸡的生产性能降低，全部饲喂发酵饲料的产蛋率比对照组下降了40％，甚至有的鸡只不产蛋，同时有较多的啄羽现象出现。
The experiment aims at finding out what role EM will play on content of cholesterol in eggs and what role EM will play on the immune of chickens.. Feed fermented fully with EM was mixed with the unfermented feed with percent of 20% ,30% ,40% ,50% ,60% ,70%, 80% ,90% ,100% to feed Hy-Line White Egg variety. The control was feed by unfermented feed. The results showed that the content of fat and cholesterol of the 80% ,90%, 100% groups were significantly lower than those in control group（ P 〈 0.05 ） ; the content of protein, dry ingredient and weight of eggs have no differences among all groups;the content of fat and cholesterol in feed fermented were significantly lower than unfermented feed and the antibody and T. cell of the 50% - 100% groups were significantly higher than those in control group（ P 〈 0.05 ）. The immune organ of chickens has no difference among a11 groups ,it is different with other people＇ s experiment. But ff the percent of the ferment is too high, the output of egg will descend.
出处
《西南农业学报》
CSCD
2007年第3期529-533,共5页
Southwest China Journal of Agricultural Sciences
