稻壳粉和玉米芯中微量元素的测定及应用
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摘要
采用电感耦合等离子体质谱法(ICP-MS)对沈阳某地区稻壳粉与玉米芯进行元素分析,二者均含有Ca、P、Na、Mg、Se、Zn、Mn、K、Cu、Fe等微量元素,方法回收率在90.4%～108%之间。将稻壳粉和玉米芯中部分微量元素与瘦肉型生长育肥猪饲料国家标准进行对比发现,稻壳粉及玉米芯中均含有瘦肉型生长育肥猪饲料所需微量元素,但Ca、P、Na、Mg、Se、Zn含量均低于国家标准。稻壳粉中,K、Fe含量略低,Cu含量达标,但Mn元素含量远远高出国家标准,摄入过多会导致中毒现象发生;玉米芯中,K、Cu、Fe、Mn元素含量均可达到国家标准。因此,在进行饲养瘦肉型生长育肥猪时,应选用玉米芯来进行喂养,同时可添加含有Ca、P、Na、Mg、Se、Zn元素的营养物质进行辅助喂养。
Inductively coupled plasma mass spectrometry(ICP-MS) was used for elemental analysis of rice husk powder and corn cob in a certain area of Shenyang. There are many trace elements such as Ca, P, Na, Mg, Se, Zn, Mn, K, Cu, Fe,etc. in both of them. The recovery rate of the method is between 90.4% and 108%. Compare some trace elements in rice husk powder and corncob with the nutrient requirements of lean type growing-finishing pigs ad libitum in the national standard. Both rice husk powder and corn cob contain trace elements needed for lean type growing-finishing pigs ad libitum. But the contents of Ca, P, Na, Mg, Se and Zn are all lower than the national standard. The content of K and Fe in rice husk powder are slightly lower, and the content of Cu is up to standard, but the content of Mn is more higher than the national standard, and excessive intake will lead to manganese poisoning. The contents of K, Cu, Fe and Mn in corn cob can reach the national standard. Therefore, corn cob should be selected for feeding lean type growing-finishing pigs. At the same time, nutrients containing Ca, P, Na, Mg, Se and Zn can be added for supplementary feeding.
Inductively coupled plasma mass spectrometry(ICP-MS) was used for elemental analysis of rice husk powder and corn cob in a certain area of Shenyang. There are many trace elements such as Ca, P, Na, Mg, Se, Zn, Mn, K, Cu, Fe,etc. in both of them. The recovery rate of the method is between 90.4% and 108%. Compare some trace elements in rice husk powder and corncob with the nutrient requirements of lean type growing-finishing pigs ad libitum in the national standard. Both rice husk powder and corn cob contain trace elements needed for lean type growing-finishing pigs ad libitum. But the contents of Ca, P, Na, Mg, Se and Zn are all lower than the national standard. The content of K and Fe in rice husk powder are slightly lower, and the content of Cu is up to standard, but the content of Mn is more higher than the national standard, and excessive intake will lead to manganese poisoning. The contents of K, Cu, Fe and Mn in corn cob can reach the national standard. Therefore, corn cob should be selected for feeding lean type growing-finishing pigs. At the same time, nutrients containing Ca, P, Na, Mg, Se and Zn can be added for supplementary feeding.
引文
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[8]熊晓燕,訾乃涛.饲用酶制剂载体的选择和使用[J].饲料工业,2010,31(18):25-28.
[2]陈曾曾,王凤,闫永建.锰中毒动物模型研究与应用进展[J].中国职业医学,2017,44(2):224-226,230.
[3] Yoh Kikuchihara, Hajime Abe, Takeshi Tanaka, et al. Relationship between brain accumulation of manganese and aberration of hippocampal adult neurogenesis after oral exposure to manganese chloride in mice[J].Toxicology, 2015, 331.
[4]修昆,何建国.玉米芯颗粒粉替代稻壳粉作为饲料预混料载体、兽药载体优势的分析[J].现代畜牧兽医,2006(12):3-6.
[5]张振伟,石绘陆,叶勇.玉米芯在当前畜牧业生产中的应用[J].畜牧与饲料科学,2012,33(8):58-59.
[6]孙笑非,王保华,王文娟,等.不同载体对一株枯草芽孢杆菌制剂质量的影响[J].饲料研究,2015(7):30-32.
[7]张沛,杨国辉,魏丽娟,等.稻壳粉固态发酵生产蛋白饲料的工艺研究[J].中国饲料,2015(8):25-27,38.
[8]熊晓燕,訾乃涛.饲用酶制剂载体的选择和使用[J].饲料工业,2010,31(18):25-28.