不同铁源对吉富罗非鱼生长及表观消化率的影响  

Effects of different iron sources on the growth of and apparent digestibility Oreochromis niloticus

作　　者：王进[1,2] 刘恒见 黄峰[1,2] 韩金林[1,2] 

机构地区：[1]武汉轻工大学动物营养与饲料科学湖北省重点实验室,武汉430023 [2]淡水水产健康养殖湖北省协同创新中心,武汉430070

出　　处：《淡水渔业》2014年第4期105-108,共4页Freshwater Fisheries

基　　金：罗非鱼现代产业技术体系建设项目(CARS-49);2010年公益性行业(农业)科研专项项目(201003020)

摘　　要：为观察不同铁源对吉富罗非鱼(Oreochromis niloticus)生长及表观消化率的影响,试验以初重6.79 g左右的吉富罗非鱼为饲养对象,采用酪蛋白、糊精为主要原料制成半精制日粮,分别添加铁含量相等(100 mg/kg饲料)的硫酸亚铁、氯化铁、氯化亚铁、柠檬酸亚铁、卟啉铁,饲喂吉富罗非鱼70 d。结果显示,在铁含量相等(100 mg/kg饲料)的半精制日粮中添加氯化亚铁,吉富罗非鱼的增重率显著(P<0.05)高于其它四种铁源。以增重率为指标,吉富罗非鱼日粮中适宜以氯化亚铁作为添加铁源。In order to study the effects of diets with different iron sources on the growth performance and apparent digesti -bility in Oreochromis niloticus, the O.niloticus with approximate initial weight of 6.79 g were fed with daily diets varied of 5 iron sources for 70 days under water circulating system .The daily diets were mainly formulating by casein and dextrin with the same Fe amount level （100 mg/kg） from different iron sources, ferrisulphas （FeSO4· 7H2O）, ferric chloride （FeCl3· 6H2O）, ferrous chloride （FeCl2· 4H2O）, ferrous citrate（Fe3（C6H3O7）2· 6H2O） and ferroporphyrin （C34H32 ClFeN4O4） respectively.The results indicated that the weight gain rate （WGR） of O.niloticus fed under the daily diet with ferrous chloride was significantly higher than that under the other four groups （P〈0.05）.Considered WGR as a mainly indicator , the ferrous chloride should be the most suitable iron source added to daily diet for O.niloticus.

关 键 词：铁源 吉富罗非鱼( OREOCHROMIS niloticus) 生长 表观消化率 

分 类 号：S965.125.373[农业科学—水产养殖]