脂肪酸钙对中国荷斯坦牛干物质采食量产奶量及经济效益影响的研究  

Studies on the Effects of Supplementing Energy Additives (Fatty Acid Calcium Salts) on Intake,Lactation, and Economic Benefit of Chinese Holstein Cows in Early Lactation

作　　者：刘丰琴[1] 高婕 李建国[1] 江富华[1] 

机构地区：[1]河北农业大学动物科技学院,保定市071001 [2]河北省保定牛奶场,071001

出　　处：《中国奶牛》2000年第6期25-27,共3页China Dairy Cattle

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。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.

关 键 词：脂肪酸钙 中国荷斯坦牛 干物质采食量 产奶量 

分 类 号：S823.5[农业科学—畜牧学] S816.4[农业科学—畜牧兽医]