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《》 1991-01
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Xu Tingsheng ( Department of Animal Husbandry and Veterinary ) Jiang Yizou (Animal Husbandry Station, Yongji County, Jilin )  
The production peformence targets of the five varieties of broiler GO(Gobb), AA( Arbor Acres), HU ( Hubbard ) , CH ( Chunky ) and NR ( Norin501 ) were determined in this trial, It shows that all the breed's production levels are high during the test period ( 0-9 week ) The top absolute increase liveweight is Go's ( 3393.22g) , the top ration of 9 week's liveweght to birthweight is HU's(88.15), CH has a most strong resisting power to disease and it's survival rate is 97.9%, And AA's Food C.rate is highest ( male 2.15, famale 2.24), NR is a developing breed and all the indxes are lower than other's, Synthesizing all kinds of target, it shows that the breed's quality grade (from high to low ) is as follows. GO→CH→AA→HU→NR
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