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Japanese black bulls after 20 months of age through the performance test were conducted in order to clarify the effects of feeding control weighted roughage on the growth of their carcass traits. DG was not significantly changed, but feed efficiency was affected by the increase of roughage intake on the feeding control. 7 and 13-MLTA were not significantly changed between years. RT was decreasing after the change of feeding control. No significantly differences were observed for MS. SFT and IMFT of bulls on performance test were decreasing after the change of feed control system, and these rates of decrease were getting larger after performance test.
日本暖地畜産学会の論文