饲粮钙水平对7~11周龄临武鸭生长性能、胫骨发育及血清生化指标的影响

李闯; 黄璇; 蒋桂韬; 王向荣; 张旭; 戴求仲

doi:10.3969/j.issn.1006-267x.2015.12.028

动物营养学报 >

2015 , Vol. 27 >Issue 12: 3871 - 3877

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.12.028

研究简报 Short Communications

饲粮钙水平对7~11周龄临武鸭生长性能、胫骨发育及血清生化指标的影响

李闯 ,
黄璇 ,
蒋桂韬 ,
王向荣 ,
张旭 ,
戴求仲

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湖南省畜牧兽医研究所动物营养与饲养技术研究室, 长沙 410131

收稿日期: 2015-06-18

网络出版日期: 2015-12-14

基金资助

现代农业技术体系建设专项资金(CARS-43-39)

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Effects of Dietary Calcium Level on Growth Performance, Tibia Development and Serum Biochemical Indices of Linwu Ducks Aged from 7 to 11 Weeks

LI Chuang ,
HUANG Xuan ,
JIANG Guitao ,
WANG Xiangrong ,
ZHANG Xu ,
DAI Qiuzhong

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Department of Animal Nutrition and Feeding Technology, Hunan Institute of Animal Science and Veterinary Medicine, Changsha 410131, China

Received date: 2015-06-18

Online published: 2015-12-14

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摘要

本试验旨在研究饲粮钙水平对7~11周龄临武鸭生长性能、胫骨发育及血清生化指标的影响。选择48日龄健康、体重相近的临武鸭母鸭270只,随机分成5组,每组6个重复,每个重复9只鸭。饲粮以石粉为钙源,分别设置0.60%、0.70%、0.80%、0.90%和1.00% 5个钙水平。试验期28 d。结果表明:1)随着饲粮钙水平增加,试验鸭平均日增重表现出先增加后降低的趋势,料重比先降低后升高;0.90%钙水平组平均日增重最大,料重比最低。饲粮钙水平对试验鸭生长性能无显著影响(P>0.05)。2)饲粮钙水平对试验鸭胫骨指标均无显著影响(P>0.05),0.70%钙水平组胫骨灰分含量最高,0.80%钙水平组胫骨折断力最大。3)饲粮钙水平对试验鸭血清钙、磷含量无显著影响(P>0.05),但血清碱性磷酸酶活性随着饲粮钙水平的升高而显著降低(P<0.05)。综合生长性能和胫骨指标,饲粮0.60%钙水平即可满足7~11周龄临武鸭生长需要;以血清碱性磷酸酶活性为评价依据,通过回归分析并求导得到7~11周龄临武鸭血清碱性磷酸酶活性最低时对应的钙需要量为0.996%。

关键词： 临武鸭; 生长性能; 胫骨发育; 血清生化指标

本文引用格式

李闯 , 黄璇 , 蒋桂韬 , 王向荣 , 张旭 , 戴求仲 . 饲粮钙水平对7~11周龄临武鸭生长性能、胫骨发育及血清生化指标的影响[J]. 动物营养学报, 2015 , 27(12) : 3871 -3877 . DOI: 10.3969/j.issn.1006-267x.2015.12.028

Abstract

The experiment was conducted to investigate the effects of dietary calcium level on growth performance, tibia development and serum biochemical indices of Linwu ducks aged from 7 to 11 weeks. A total of 270 forty-eight-day-old female Linwu ducks were randomly allocated to 5 groups with 6 replicates per group and 9 ducks per replicate. The basal diet supplemented with different levels of limestone to ensure dietary calcium level up to 0.60%, 0.70%, 0.80%, 0.90% and 1.00%, respectively. The results showed as follows:1) with the increase of dietary calcium level, the average daily gain showed first increased and then decreased, the ratio of feed to gain was decreased first and then increased, the average daily gain in 0.90% calcium level group was the highest, and the ratio of feed to gain was the lowest. However, dietary calcium level had no effects on growth performance of ducks(P>0.05). 2) Dietary calcium level had no effect on all the tibia indexes(P>0.05), and the ash content of tibia was the highest in 0.70% calcium level group, and the maximum of tibia broking strength in 0.80% calcium level group was the highest. 3) Dietary calcium level had no effect on serum calcium and phosphorus content of ducks(P>0.05). Increasing dietary calcium level significantly reduced serum alkaline phosphatase activity(P<0.05). According to the growth performance and tibia indices, 0.60% calcium level can meet the growth needs of Linwu ducks aged from 7 to 11 weeks. With serum alkaline phosphatase activity as the basis for evaluation, through the regression analysis and derivation to get the lowest serum alkaline phosphatase activity and the corresponding calcium requirement is 0.996%.

Key words： Linwu ducks; growth performance; tibia development; serum biochemical indices

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