摘要
通过在奶牛日粮中添加β-胡萝卜素制剂,用高效液相色谱测定奶牛血液和乳中的β-胡萝卜素质量浓度。研究不同β-胡萝卜素制剂添加水平对奶牛血液和乳中胡萝卜素质量浓度的影响。结果表明,在添加β-胡萝卜素第60天,奶牛血液中胡萝卜素的质量浓度变化为:基础日粮+300 mg/d β-胡萝卜素添加组(Ⅱ)比基础日粮对照组(I)增加了38.55,差异显著(P<0.05);基础日粮+600mg/d β-胡萝卜素添加组(Ⅱ)比对照组I增加了99.24﹪,差异极显著(P<0.01);基础日粮+900 mg/d β-胡萝卜素添加组(Ⅳ)比对照组增加了122.85%,差异极显著(P<0.01)。Ⅱ、Ⅲ、IV组奶牛牛乳中β-胡萝卜素的质量浓度在添加胡萝卜素第60天,分别比对照组(I)增加了63.27%,148.46%,262.29%,差异均极显著(P<0.01)。
The effect ofβ-carotene supply level on β-carotene contents in blood and milk of dairy cows was studied by high performance liquid chromatography （HPLC）.The results showed that：after adding β in blood of group Ⅱwhich was treated with basal feed＋300 mg/d β-carotene in daily feed of cows for 60 days, the contents of β-carotene carotene increased 38.55% compared with that of group I which was treated with basal feed （P〈0.05）;the contents of β-carotene in blood of group m ,basal feed＋600 mg/d β-carotene,increased 99.24%compared with that of group I （P〈0.01）;the contents of β-carotene in blood of group IV,basal feed＋900 mg/d β-carotene,increased 122.85% compared with group Ⅰ （P〈0.01）.After adding β-carotene for 60 days,the β-carotene content in milk of group Ⅱ ,group Ⅲ ,group Ⅳ improved 63.27%, 148.46% and 262.29% compared with comparison group I,respectively.
出处
《中国乳品工业》
CAS
北大核心
2008年第9期35-37,46,共4页
China Dairy Industry
关键词
奶牛
血液
牛乳
Β-胡萝卜素
高效液相色谱
dairy cows
blood
milk
B-carotene
high performance hquid chromatography（HPLC）
