乌蒙半细毛羊“锌缺乏症”的研究

doi:10.16431/j.cnki.1671-7236.2019.06.014

摘要/Abstract

摘要：

试验旨在研究乌蒙半细毛羊"锌缺乏症"的病因。在赫章县兴发养殖场选取20只锌（Zn）缺乏的乌蒙半细毛羊作为试验组，在威宁县凉水沟种羊场选取20只健康的乌蒙半细毛羊作为对照组。采用电感耦合等离子体原子发射光谱法分析土壤、牧草和动物血液及肝脏中微量元素的含量，应用全自动血细胞分析仪测定血液参数，应用全自动生化分析仪测定血清生理生化指标。结果发现，试验牧场土壤及牧草中锌含量均极显著低于对照牧场（P<0.01）；试验组乌蒙半细毛羊血液和肝脏中Zn含量极显著低于对照组（P<0.01），两组间其他元素含量均无显著差异（P>0.05）；试验组乌蒙半细毛羊血液中红细胞数（RBC）、淋巴细胞（LY）和中性粒细胞（NE）均极显著低于对照组（P<0.01）；血清中超氧化物歧化酶（SOD）、谷胱甘肽过氧化物酶（GSH-Px）和过氧化氢酶（CAT）、乳酸脱氢酶（LDH）、碱性磷酸酶（AKP）活性均极显著低于对照组（P<0.01），丙二醛（MDA）含量极显著高于对照组（P<0.01），而两组间血红蛋白（Hb）、红细胞压积（PCV）、白细胞数（WBC）、血清尿素氮（BUN）含量和谷草转氨酶（AST）、谷丙转氨酶（ALT）、谷氨酰转肽酶（γ-GT）活性均无显著差异（P>0.05）。综上所述，乌蒙半细毛羊"锌缺乏症"主要由土壤和牧草锌含量过低引起，且在日粮中添加适量的硫酸锌可以防治乌蒙半细毛羊"锌缺乏症"的发生。

关键词: 乌蒙半细毛羊; 土壤和牧草; 生理生化指标; 皮肤角化不全; 锌缺乏

Abstract:

This experiment was to study the etiology of zinc (Zn) deficiency in the Wumeng Semi-fine wool sheep.20 Zn-deficient Wumeng Semi-fine wool sheep were selected from Xingfa farm in Hezhang county as the experimental group,and 20 healthy Wumeng Semi-fine wool sheep were selected from Liangshuigou sheep farm in Weining county as the control group.Mineral concentrations were determined by inductively coupled plasma atomic emission spectroscopy in soil,forage and in tissue of Wumeng Semi-fine wool sheep.The blood parameters and biochemical indexes were determined on automatic hematology analyzer and biochemical kit.The results showed that Zn content in the soil and forage from the experimental pasture was extremely significantly lower than those of control area (P<0.01).Zn contents in the blood and liver in affected Wumeng Semi-fine wool sheep was extremely significantly lower than those of control group (P<0.01).There were no significant difference in other elements between two groups (P>0.05).The numbers of RBC,LY and NE in blood from affected Wumeng Semi-fine wool sheep were extremely significantly lower than those of control group (P<0.01).The levels of SOD,GSH-Px,CAT,LDH and AKP in serum from the affected Wumeng Semi-fine wool sheep were extremely significantly lower than those of control group (P<0.01).The content of MDA from affected animals were extremely significantly higher than that of control group (P<0.01),but there were no marked differences on the numbers of Hb,PCV,WBC,the content of BUN and the activities of AST,ALT and γ-GT between the two groups (P>0.05).In conclusion,the main symptoms of Wumeng Semi-fine wool sheep were "Zn deficiency" which mainly caused by low Zn content in soil and herbage.Adding proper amount of zinc sulfate in the diet could prevent and protection the disease of Wumeng Semi-fine wool sheep.

Key words: Wumeng Semi-fine wool sheep; soil and forage; physiological and biochemical indexes; parakeratosis of skin; Zn deficiency

中图分类号:

S826

宋春洁, 霍宾, 吴婷, 申小云. 乌蒙半细毛羊“锌缺乏症”的研究[J]. 《中国畜牧兽医》, 2019, 46(6): 1677-1684.

SONG Chunjie, HUO Bin, WU Ting, SHEN Xiaoyun. Study of Zinc Deficiency in the Wumeng Semi-fine Wool Sheep[J]. , 2019, 46(6): 1677-1684.

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