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Effects of diet pellets with different concentrate-roughage ratios on rumen fermentation parameters and microorganism abundance in weaned bull calves
YANG Hong-Bo, LIU Hong, ZHAN Jin-Shun, LIN Miao, ZHAO Guo-Qi
Acta Prataculturae Sinica . 2015, (12): 131 -138 .  DOI: 10.11686/cyxb2015022

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