Effects of Dietary Niacin Supplemental Level on Laying Performance, Egg Quality and Plasma Biochemical Indexes of Ducks during the Early Laying Period
WANG Shuang, ZHANG Hanxing, RUAN Dong, CHEN Wei, LIN Yingcai
Chinese Journal of Animal Nutrition . 2014, (7): 1807 -1813 .  DOI: 10.3969/j.issn.1006-267x.2014.07.012

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