Coated Vitamin A：Effects on Ruminal Fermentation Characteristics and Nutrient Apparent Digestibility of Dairy Cows
JIN Lu, YAN Sumei, BAO Hongyun, GONG Jian, SUN Juan, SHI Huiyu, LI Junliang
Chinese Journal of Animal Nutrition . 2014, (7): 1968 -1974 .  DOI: 10.3969/j.issn.1006-267x.2014.07.031

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