Study On The Effect On Egg Quality Of Xianju Under The Semi-Natural Conditions And Earthworm Feeding Mode

In this experiment we study for effect on egg quality of Xian Ju under the semi-natural mode andearthworm feeding mode, and primarily analyze the mechanism, make certain the semi-natural modeand earthworm feeding mode to produce the quality eggs. The experiment includes two departments,Part first: We choose200layers which are good healthy and180weeks old from Xian,ju. The200layers were randomly divided into two groups, and every group includes100layers, First group usingthe ladder cage, with same ventilation and lighting (natural light and artificial illumination) conditions,via free choice and free drinking. The Second groups fed under semi natural conditions, Fed thebasal diet, and fed supplementary feeding at18:00every day. The first7d of each test period was anadjustment period and the following28d was for sample collection. Part second: we select200layers ofXian,ju which210weeks old, which were resemble on weight,ratio of egg Production and depart theminto2overlaps randomly. One group fed on routine forge; the other add2kg earthworm. Theexperiment started from1th of May and ended on1th of July. The results showed that: there was somesignificant difference in egg quality on semi-natural and caged way. Semi-natural layers were betterthan caged layer: the egg production,hen day egg production,egg weight,water content wereimproved35.89%,52.75%,12.40%,5.83%(P<0.01),feed intake was improved2.40%(P<0.05),however egg ratio was reduced36.18%(P<0.01), the difference is extremely notability. SemiNatural layers were higher than caged layer: the crude protein,crude fat,crude ash,total amino acidwere improved5.25%,8.87%,63.82%,43.23%(P<0.05),especily Glu is higher by38.58%, thedifference is notability. Semi-natural layers were lower than caged layers in water content of egg whiteand water content of egg yolk: caged layers were improved9.52%,7.94%(P<0.05), the difference isnotability. Semi natural layers were better egg yolk colors, which were0.9higher than caged layers.The content of cholesterol in egg yolk is lower than the caged layers11.02%(P<0.05), the difference isnotability.the content of phosphor lipid in egg yolk is higher than caged layers9.44%, the egg yolkfatty/egg weight was higher than caged layers12.54%(P<0.05), the difference is notability.there wasthe trend to improve the content of protein in the egg-white,the content of calcium and phosphorus inthe egg and egg yolk weight/egg weight.There was no significant difference in other aspects between semi-natural layers and caged layers. There was significant to reduce feed intake,ratio of eggproduction and the content of cholesterol in egg yolk which was fed with earthworm.But there was nosignificant effect in the other aspects. The results:1, Feed model can improve egg quality, semi-natuallayers can produce better egg which have better egg yolk color,higher phospholipid and lowercontent of cholesterol in the egg yolk., Especily has better economic benefits.2, Fill meshes can affectegg quality: in this experiment the layers which fed with earthworm can notabily reduce the content ofcholesterol in the egg yolk.