褐煤中提取硝基腐植酸钠对生长育肥猪生长性能和饲料消化率的影响
갈매중제취초기부식산납대생장육비저생장성능화사료소화솔적영향
Effects of Nitro Humic Acid Natrium Extracted from Lignite on Growth Performance of Fattening Pig and Digestibility of Feedstuff
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