| 内蒙古4种家畜乳硒含量测定及评价 |
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| 引用本文： | 刘晓齐,郭军,刘雨佳,高玎玲.内蒙古4种家畜乳硒含量测定及评价[J].畜牧与饲料科学,2022,43(1):98-103. |
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| 作者姓名： | 刘晓齐 郭军 刘雨佳 高玎玲 |
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| 作者单位： | 内蒙古农业大学食品科学与工程学院,内蒙古 呼和浩特 010018 |
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| 基金项目： | 国家自然科学基金地区科学基金项目(31760489)。 |
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| 摘 要： | 目的] 探明内蒙古4种家畜乳的硒含量水平。方法] 从内蒙古东北部到西部8个旗县采集双峰驼、蒙古马、萨能山羊和荷斯坦牛4种家畜代表性混合乳样48份,涉及188头（只/匹）动物个体乳样。利用原子荧光光谱法测定乳硒含量,并对乳硒含量的地区和畜种差异进行统计学分析和比较。结果] 4种家畜乳硒含量存在地区差异：阿拉善左旗双峰驼乳硒含量（5.96±0.41）μg/kg]约为鄂温克族自治旗双峰驼乳硒含量（2.89±0.12）μg/kg]的2倍;呼和浩特市荷斯坦牛乳硒含量（8.74±0.22）μg/kg]约为鄂温克族自治旗荷斯坦牛乳硒含量（2.26±0.41）μg/kg]的3.8倍;正蓝旗蒙古马乳硒含量（6.65±0.57）μg/kg]约为鄂温克族自治旗蒙古马乳硒含量（1.02±0.42）μg/kg]的6.5倍;同在西部区,杭锦旗萨能山羊乳硒含量为（8.95±1.32）μg/kg],略高于五原县萨能山羊乳硒含量（6.28±0.80）μg/kg],但二者差异不显著（P>0.05）。家畜种类不同乳中硒含量也存在差异：双峰驼、萨能山羊和荷斯坦牛的乳硒含量整体高于蒙古马;萨能山羊乳硒含量显著（P<0.05）高于蒙古马乳。4种家畜乳硒含量数据都较为离散,提示乳中硒含量不仅存在跨东西部地区的差异,还可能存在局部地质丰度效应,也可能与外来饲草料和舔砖等有关。结论] 内蒙古家畜乳硒含量整体较低,并存在东北部显著低于中西部地区的现象;富硒饲养是内蒙古地区养殖业和乳品加工业高品质发展的一个有效途径。
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| 关 键 词： | 硒 乳 双峰驼 蒙古马 山羊 荷斯坦牛 |
| 收稿时间： | 2021-12-27 |
Determination and Evaluation of Milk Selenium Level of Four Livestock in Inner Mongolia |
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| LIU Xiao-qi,GUO Jun,LIU Yu-jia,GAO Ding-ling.Determination and Evaluation of Milk Selenium Level of Four Livestock in Inner Mongolia[J].Animal Husbandry and Feed Science,2022,43(1):98-103. |
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| Authors: | LIU Xiao-qi GUO Jun LIU Yu-jia GAO Ding-ling |
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| Institution: | College of Food Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China |
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| Abstract: | Objective] To explore selenium level of livestock milk in Inner Mongolia. Method] A total of 48 mixed milk representative samples that involves 188 individual animals of Bactrian camel, Mongolian horse, Saanen goat and Holstein cow, were collected from 8 banners/counties from the northeast to the west part of Inner Mongolia Autonomous Region. Selenium was determined by atomic fluorescence spectrometry, and statistical analysis and comparison were conducted. Result] There were extremely significant regional differences on selenium content among each of the four livestock milk in Inner Mongolia: selenium in Bactrian camel milk from Alagxa Left Banner（5.96±0.41） μg/kg] was twice higher than that of Ewenki Autonomous Banner （2.89±0.12） μg/kg], selenium in Holstein cow milk from suburb of Hohhot City （8.74±0.22） μg/kg] was about 3.8 times higher than that of Ewenki Autonomous Banner （2.26±0.41） μg/kg], while, selenium in Mongolian horse milk from Zhenglan Banner（6.65±0.57）μg/kg] was 6.5 times higher than that of Ewenki Autonomous Banner（1.02±0.42） μg/kg]. In the west part of Inner Mongolia, selenium of goat milk from Hanggin Banner（8.95±1.32） μg/kg] slightly higher than Wuyuan County （6.28±0.80） μg/kg] but without significant differences （P>0.05）. Selenium in different animal milk also were significantly different. Generally, Bactrian camel, Saanen goat and Holstein cow had higher milk selenium level. Selenium level of Saanen goat milk was significantly higher than that of Mongolian horse milk （P<0.05）. Selenium data were all very much dispersed, implies that the selenium in milk not only has west to east regional differences, but also has local geographical abundance effect, may also influenced by foreign feed and forage, and salt blocks as well. Conclusion] In Inner Mongolia, selenium level of livestock milk is generally lower, and milk selenium of northeastern part was significantly lower than that in central and western part. Selenium-rich feeding is an effective way to high quality development for the dairy livestock farming and dairy processing industry as well. |
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| Keywords: | selenium milk Bactrian camel Mongolian horse goat Holstein cow |
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