动物营养学报 >

2014 , Vol. 26 >Issue 3: 812 - 818

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.03.034

研究简报 Short Communications

团头鲂饲料磷需要量

  • 刘汉超 ,
  • 叶元土 ,
  • 蔡春芳 ,
  • 姚林杰 ,
  • 陈科全 ,
  • 黄雨薇 ,
  • 龚志
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  • 苏州大学基础医学与生物科学学院, 苏州 215123

收稿日期: 2013-09-24

  网络出版日期: 2014-03-04

基金资助

公益性行业（农业）科研专项（201003020）

收起

Phosphorus Requirement of Bluntnose Black Bream

  • LIU Hanchao ,
  • YE Yuantu ,
  • CAI Chunfang ,
  • YAO Linjie ,
  • CHEN Kequan ,
  • HUANG Yuwei ,
  • GONG Zhi
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  • College of Preclinical Medicine and Biological Science, Soochow University, Suzhou 215123, China

Received date: 2013-09-24

  Online published: 2014-03-04

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摘要

本试验旨在研究饲料中不同磷水平对团头鲂生长性能及体组成不同部位中磷含量的影响，以确定团头鲂饲料中磷的需要量。选取480尾平均初始体重为35 g的团头鲂为试验对象，随机分为6个试验组，每组4个重复，每个重复20尾，试验期为85 d。采用半纯化饲料，以磷酸二氢钙为磷源，设置磷水平为3.8、6.9、10.1、13.2、16.4、19.5 g/kg共6个梯度的试验饲料。结果表明：1）团头鲂试验中饲料磷水平为13.2 g/kg的试验组增重率显著高于其他各组（P<0.05）；2）饲料磷水平对团头鲂的成活率、全鱼粗蛋白质和粗脂肪含量无显著影响（P>0.05），且磷水平为3.8 g/kg试验组全鱼粗灰分含量显著低于其他组（P<0.05）；3）随着饲料磷水平的提高，团头鲂全鱼、鳞片、脊椎骨、鳃盖骨磷含量显著上升（P<0.05），饲料磷水平对全鱼、鳞片、脊椎骨、鳃盖骨磷含量显著影响（P<0.05）。在本试验条件下，饲料磷水平不仅影响团头鲂的生长性能，还影响全鱼及组织中磷含量。通过一元二次模型拟合分析得出，团头鲂获得最大生长的饲料磷需要量为12.98~13.18 g/kg。

关键词： 团头鲂; 磷; 需要量; 生长

本文引用格式

刘汉超 , 叶元土 , 蔡春芳 , 姚林杰 , 陈科全 , 黄雨薇 , 龚志 . 团头鲂饲料磷需要量[J]. 动物营养学报, 2014 , 26(3) : 812 -818 . DOI: 10.3969/j.issn.1006-267x.2014.03.034

Abstract

In order to estimate the dietary phosphorus requirement of bluntnose black bream (Megalobrama amblycephala), the effects of dietary phosphorus level on growth performance, body composition and contents of phosphorus in different tissues of bluntnose black bream were studied. A total of 480 bluntnose black breams with an average initial body weight of 35 g were randomly divided into 6 groups with 4 replicates per group and 20 bluntnose black bream per replicate. The experiment lasted for 85 days. Using semi-purified diet, six experimental diets containing different phosphorus levels (3.8, 6.9, 10.1, 13.2, 16.4 and 19.5 g/kg) were formulated with Ca(H2PO4)2 as the phosphorus source. The results showed as follows: 1) weight gain rate was significantly increased in experimental group with 13.2 g/kg phosphorus compared with that in the other groups (P<0.05); 2) the survival rate, contents of crude protein and ether extract in whole body were not significantly affected by dietary phosphorus level (P>0.05), and the ash content in experimental group with 3.8 g/kg phosphorus was significantly lower than that in other groups (P<0.05); 3) with dietary phosphorus level increasing, phosphorus content in whole body, vertebra, opercle and scale was significantly increased (P<0.05). Dietary phosphorus level had significant effects on phosphorus content in whole body, muscle, vertebra, opercle and scale (P<0.05). In conclusion, under the conditions of this experiment, not only growth performance, but also contents of phosphorus in whole body and tissues are affected by dietary phosphorus level. Quadratic model analysis results show that the optimum dietary phosphorus requirements for maximum growth of bluntnose black bream is 12.98~13.18 g/kg.

Key words： bluntnose black bream; phosphorus; requirement; growth

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