有机锌在对斑点叉尾鮰饲料中的应用

wangshangchu

   Aquaculture

Volume 133, Issue 1, 15 May 1995, Pages 73–82

Chelated zinc reduces the dietary zinc requirement of channel catfish, Ictalurus punctatus

Tippawan Paripatananont,

Richard T. Lovellfile:///C:\Users\tianyi\AppData\Local\Temp\ksohtml\wps_clip_image-14716.png

Department of Fisheries and Allied Aquacultures, Auburn University, Auburn, AL 36849 USA

Abstract

The dietary zinc requirements of year-1 channel catfish were determined with an egg-white-based purified diet and with a soybean-meal-based practical diet, each supplemented with serial concentrations of zinc methionine (ZnMet) or zinc sulfate heptahydrate (ZnS). In the egg white diet, supplemental dietary zinc requirements, determined by broken-line regression analysis, for ZnMet and ZnS for maximum weight gain were 5.58 and 18.94 mg/kg, respectively, and for maximum bone zinc deposition were 6.58 and 19.91 mg/kg, respectively. In the soybean meal diet, supplemental dietary zinc requirements for ZnMet and ZnS for maximum weight gain were 5.91 and 30.19 mg/kg, respectively, and for maximum bone zinc deposition were 12.82 and ≥ 80 mg/kg, respectively. The relative bioavailabilities of ZnMet, with ZnS as the standard, were 352% for weight gain and 305% for bone zinc deposition in the egg white diet, and 482% for weight gain and 586% for bone zinc deposition in the soybean meal diet. This experiment showed that ZnMet has approximately 3 times the potency of ZnS in a purified diet and 4–5 times the potency of ZnS in a practical diet containing phytic acid for meeting the dietary zinc requirements of channel catfish.

Keywords： Zinc methionine; Zinc sulfate; Ictlaurus punctatus; Growth fish; Bone zinc deposition

  有机锌可以降低斑点叉尾鮰对日粮锌的需求

Tippawan Paripatananont, Richard T. Lovell  奥本大学

摘要

为了研究1龄斑点叉尾鮰对日粮锌的需求量，在蛋清基础纯化日粮和大豆基础实用日粮中，分别添加不同浓度的蛋氨酸锌和七水硫酸锌。以最大增重为评价指标，通过折线回归分析，在蛋清基础纯化日粮中蛋氨酸锌和硫酸锌的最适添加量分别为5.58和18.94mg/kg。以最大骨锌沉积为评价指标，则分别为6.58和19.91mg/kg。以最大增重为评价指标，通过折线回归分析，在大豆基础实用日粮中蛋氨酸锌和硫酸锌的最适添加量分别为5.91和30.19mg/kg。以最大骨锌沉积为评价指标，则最适添加量分别为12.82和≥ 80 mg/kg。以增重和骨锌沉积为评价标准，在蛋清日粮中蛋氨酸锌相对硫酸锌的生物学利用率分别为352%、305%。在大豆日粮组中蛋氨酸锌相对硫酸锌的生物学利用率分别为482%、586%。本试验显示，为满足斑点叉尾鮰对日粮锌的需求，在纯化日粮中蛋氨酸锌的效价约是硫酸锌的3倍，而在含有植酸的实用日粮中蛋氨酸锌的效价约是硫酸锌的4-5倍。

关键字：蛋氨酸锌；硫酸锌；斑点叉尾鮰；鱼增重；骨锌沉积

      在此分享有英文文献翻译的同时，还是希望大家能相互交流和讨论在水产饲料中使用氨基酸螯合锌的心得！比如应用效果！

007畜牧

欢迎您多发

wangshangchu

007畜牧 发表于 2013-11-15 17:17
欢迎您多发

关键还是希望有专家能讨论讨论

007畜牧

wangshangchu 发表于 2013-11-18 09:28
关键还是希望有专家能讨论讨论

不过有机锌的确是好东西，就看配方师的把握了