【摘要】 选择 6头经产、胎次相同或相近、产后 10～ 20天的中国荷斯坦牛，采用 3× 3重复拉丁方设计，研究脂肪酸钙对中国荷斯坦奶牛泌乳早期的干物质采食量、产奶量的影响。试验处理分别为：处理 A组为基础日粮；处理 B组为基础日粮＋ 200克脂肪酸钙；处理 C组为基础日粮＋ 400克脂肪酸钙。试验结果表明： (1)日添加 200克的 B组对干物质采食量没有影响 (P>0.05)；日添加 400克的 C组使干物质采食量显著下降，日干物质采食量比对照组下降了 1.2千克 (P<0.05)。 (2)B组日产奶量比对照组提高了 2.33千克 (P<0.05)， C组产奶量未得到显著提高 (P>0.05)； (3)日添加 200克脂肪酸钙经济效益显著，每头牛每天可增加纯收入 2.90元人民币； 400克组从经济效益分析每头每天亏损 0.92元人民币。更多还原

【Abstract】 Six pluriparous Chinese Holstein cows were used in a replicated 3× 3 Latin square design to determine the effects of fatty acid calcium salts on intake,lactation,and economic benefit during early lactation.Treatments were basal diet(A);basal diet plus 200g fatty acid calcium salts (B);basal diet plus 400g fatty acid calcium salts(C).The results showed as follows:The dry matter intake were not affected by adding 200g calcium salts(P>0.05);adding 400g calcium salts decreased the dry matter intake significantly (P<0.05) compared with A,the dry matter intake decreased 1.2Kg per day.Production of milk yield was increased 2.33Kg/d for the cows fed 200g fatty acid calcium salts(P<0.05),while production of milk yield was not significantly different for treatment C(P>0.05).The economic benefit was significant for treatment B,an increase of 2.90 Chinese yuan derived per day from per cow;but the treatment Clost 0.92 Chinese yuan.更多还原