Study On The Application Effects And Mechanisms Of The Various Biological Ecological Agents On The Layers

In this study two kinds of microbial ecological agents, which are confected by our lab, are compared with EM (Effective Microorganisms) used widely with application effect to offer scientific data for developing the microbial ecological agent with better results and holding property right.1. The application effects on layers were studied, the results as follow:(1) Employing microbial ecological agents could increase hens growth performance and the feed efficiency rate.(2) Employing microbial ecological agents could decrease morbid occur rate and dying rate.(3) Compared with the control group, three experiment groups (A, B, C)increased by 5.93%, 4.82%, 4.93% on laying ratio and decreased by 7.43%, 7.55%, 5.97% on feed/egg ratio and reduced by 33.51%, 26.12%> 26.23% on soft-shelled and broken egg ratio, having significant diversities (p<0.05); and improved egg weight, having no remarkable diversities (p>0.05).2. The preliminary mechanisms of microbial ecological agent were studied, the results as follow:(1) Compared with original material, the fermented feedstuffs had significant changes on the content of crude protein (P<0.05).(2) The content of total amino acids in fermented feedstuffs increased from 3.03% to 15.79%.(3) Microbial ecological agents had significant positive effects on the growth of immunity organs.