日粮阴阳离子平衡对绵羊瘤胃挥发性脂肪酸和血液指标的影响  

Effects of Dietary Cation-anion Balance on Rumen Volatile Fatty Acids and Blood Indexes in Sheep

作　　者：杨赵伟[1] 刘大森[1,2] 隋美霞[1] 王宇星[1] 刘海霞[1] 任燕锋[1] 

机构地区：[1]东北农业大学动物营养研究所,哈尔滨150030 [2]东北农业大学理学院,哈尔滨150030

出　　处：《动物营养学报》2010年第3期769-774,共6页CHINESE JOURNAL OF ANIMAL NUTRITION

摘　　要：本试验旨在研究日粮阴阳离子平衡(DCAB)对绵羊瘤胃挥发性脂肪酸和血液指标的影响。选用(45±3)kg的杂交羊(东北细毛羊×小尾寒羊)4只,采用4×4拉丁方试验设计,分别饲喂DCAB为+239.16、+104.37、-0.83和-127.59mEq/kgDM的日粮。结果表明,DCAB对绵羊尿液pH有极显著的影响(P<0.01);对瘤胃挥发性脂肪酸的浓度和比例影响不显著(P>0.05),但DCAB最高和最低组瘤胃挥发性脂肪酸浓度均较低;对绵羊血糖、血清非酯化脂肪酸、高密度脂蛋白和低密度脂蛋白含量影响不显著(P>0.05),但DCAB最高和最低组甘油三酯浓度较低(P<0.05);对胰岛素、胰高血糖素、生长激素、三碘甲腺原氨酸和甲状腺素影响不显著(P>0.05)。结果提示,DCAB对绵羊脂肪代谢相关的血液指标有一定的影响。The experiment was conducted to study the effects of dietary cation-anion balance （DCAB） on rumen volatile fatty acids and blood indexes in sheep. Four crossed-bred （Northeast fine sheep×Small tail Han sheep） sheep with an average weight of （45±3） kg were used in a 4×4 Latin square design. The groups received the same basal diet with different DCAB as ＋239.16,＋104.37,-0.83 and -127.59 mEq/kg DM. The results showed that DCAB significantly affected pH in urine of sheep （P〈0.01）; there were no significant effects on the ratio of volatile fatty acids （P〈0.05）,however,the highest DCAB and the lowest DCAB groups had lower concentration of volatile fatty acids; there were no significant effects on the concentration of glucose （GLU）,nonesterified fatty acid （NEFA）,high density lipoprotein （HDL） and low density lipoprotein （LDL） in serum （P〈0.05）,however,the highest DCAB and the lowest DCAB groups had lower concentration of triglyceride （TG）; there were no significant effects on the concentration of insulin （INS）,glucagon （IRG）,growth hormone （GH）,triiodothyronine （T3） and tetraiodothyronine （T4） （P〉0.05）. In conclusion,these results indicated that DCAB could improve blood indexes about the metabolism of fat in sheep.

关 键 词：日粮阴阳离子平衡 脂肪代谢 甘油三酯 

分 类 号：S826[农业科学—畜牧学]