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猪锌的缺乏和过量的危害

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猪锌的缺乏和过量的危害

发布日期:2016-08-10 17:33 来源:http://www.zdslgs.com 点击:

猪锌的需要量受饲料中钙、磷、铁、铜、植酸等的影响。仔猪对锌的吸收率在40%~60%之间。造成猪锌不足的原因很多,主要有料中锌有效含量过低和近年来高铜的使用;蛋氨酸和半胱氨酸也会加快体内锌的外排;肝病也会造成锌不足。
Pig zinc needs to be affected by calcium, phosphorus, iron, copper, acid and other effects in the feed. The absorption rate of zinc in piglets was between 60% and 40%. There are many reasons for the deficiency of zinc in pigs. The effective content of zinc in the main material is too low and the use of high copper in recent years; methionine and cysteine will also accelerate the efflux of zinc in the body; liver disease can also cause zinc deficiency.
因此猪很易出现锌缺乏,尤其刚断奶的仔猪。日粮中缺锌,仔猪主要表现为:(1)食欲和生长率显着降低。(2)患不完全角化症:皮肤和食道的上皮细胞变厚或过度角化,表现为皮肤发炎、结痂、脱毛、呕吐、腹泻、营养不良。(3)骨骼变形:缺锌时软骨形成受阻,骨骼中磷酸酶活性降低,导致骨骼发育不良,长骨变短增厚。
Therefore, pigs are prone to zinc deficiency, especially in newly weaned piglets. Zinc deficiency in the diet of piglets, mainly as follows: (1) appetite and growth rate was significantly lower. (2) suffer from incomplete keratosis: skin and esophageal epithelial cells become thick or hyperkeratosis, manifested as skin inflammation and scar tissue, hair loss, vomiting, diarrhea, malnutrition. (3) skeletal deformation: the zinc deficiency on cartilage formation is blocked, the phosphatase activity in skeletal reduced, leading to skeletal dysplasia, long bone becomes short thickening.
锌不足会给仔猪带来危害,锌过量同样会给仔猪带来危害。过量的锌可致仔猪的胸腺、骨髓、及脾脏的T、B淋巴细胞DNA、RNA和蛋白质下降,降低细胞的增殖力,使外周血粒细胞、腹腔巨嗜细胞吞噬杀菌力下降(朱建津,1996)。
Zinc deficiency will bring harm to the piglets, zinc excess will also bring harm to the piglets. An excess of zinc can cause piglet thymus, bone marrow and spleen T, B lymphocyte DNA, RNA and protein decreased cell proliferation is reduced, so that the outer peripheral blood granulocyte and macrophage cell decreased phagocytic bactericidal (Jian Jin Zhu, 1996).
过量锌可致铁、铜继发性缺乏,造成仔猪贫血和生长缓慢。但生产实际中一般不会出现锌过量引起的中毒,因为锌的正常生理需要量与中毒量之间的范围很大,猪可耐受正常量的20~30倍,且饲料中含锌过量能使仔猪厌食,从而可避免过量锌造成对机体的危害。
Excessive zinc can lead to iron, copper secondary deficiency, resulting in Piglet Anemia and slow growth. But production practice in general will not be caused by too much zinc poisoning, because zinc normal physiological needs between quantity and poisoning scope, pigs can be 20 to 30 times the normal tolerance, and feed in the zinc excess could make piglets anorexia, so as to avoid harm to the body caused by excessive zinc.
本文由众粮饲料向大家友情奉献.更多有关的知识请点击: http://www.zdslgs.com/我们将倾情为您解答.
In this article, we will give you more information about the food from all the food and fodder. Please click: http://www.zdslgs.com/ we will give you the answer.

相关标签:4%猪预混料

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