动物营养学报 >

2015 , Vol. 27 >Issue 2: 559 - 568

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.02.028

研究简报 Short Communications

饲粮非植酸磷水平对39~46周龄黄羽肉种母鸡繁殖性能、胫骨指标和血浆生化指标的影响

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  • 广东省农业科学院动物科学研究所, 农业部华南动物营养与饲料重点实验室, 广东省动物育种与营养公共实验室, 广东省畜禽育种与营养研究重点实验室, 广州 510640
蒋守群(1971-), 女, 湖北天门人, 研究员, 硕士生导师, 博士, 主要从事家禽营养与饲料研究.E-mail:jsqun3100@hotmail.com

收稿日期: 2014-09-15

  网络出版日期: 2015-02-09

基金资助

国家肉鸡产业技术体系项目(CARS-42);国家公益性行业(农业)科研专项(200903006);广东省重点实验室建设支撑项目(2012A061100005);广东省直科研机构创新能力建设项目(2012B060600005)

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Effect of Dietary Non-Phytate Phosphorus Level on Reproduction Performance, Tibial Indexes and Plasma Biochemical Indexes of Yellow-Feathered Broiler Breeders Aged from 39 to 46 Weeks

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  • Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Public Laboratory of Animal Breeding and Nutrition, The Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China

Received date: 2014-09-15

  Online published: 2015-02-09

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摘要

本试验旨在研究不同非植酸磷(NPP)水平对39~46周龄黄羽肉鸡父母代种鸡繁殖性能、胫骨指标和血浆生化指标的影响,探讨该阶段适宜磷供给量.试验选用39周龄岭南黄羽肉鸡父母代种母鸡810只,根据体重和产蛋率分为5个组,每组6个重复,每重复27只鸡.组1为对照组,饲喂玉米-豆粕型基础饲粮(NPP水平为0.30%),组2、3、4和5饲粮分别在基础饲粮中添加不同水平的磷酸氢钙,使饲粮NPP水平分别为0.35%、0.40%、0.45%和0.50%,其他营养成分各组基本一致.试鸡限饲122 g/(只·d),自由饮水.试验期8周.结果表明:1)试验期内,NPP水平未显著影响试鸡平均日增重、平均日产蛋量、料蛋比、平均蛋重和破蛋率(P>0.05),显著影响了产蛋率和不合格蛋率(P<0.05),0.45%组产蛋率显著高于0.30%和0.40%组(P<0.05),0.40%组不合格蛋率显著低于其余4组(P<0.05).2)饲粮NPP水平显著影响了试鸡39~40周龄种蛋长径、蛋短径、蛋形指数和蛋壳强度(P<0.05),显著影响了45~46周龄种蛋蛋壳强度(P<0.05).3)NPP水平对种蛋孵化性能(受精率、孵化率、健雏率、健雏平均出壳重)无显著影响(P>0.05).4)饲粮NPP水平显著增加了试鸡脱脂胫骨粗灰分中钙、磷含量(P<0.05).5)0.40%和0.45%NPP组试鸡血浆甲状旁腺激素含量显著高于0.30%和0.35%组(P<0.05),0.50%组血浆降钙素含量显著高于其余4组(P<0.05). 综上,39~46周龄黄羽肉鸡父母代种母鸡饲粮NPP适宜水平为0.40%~0.45%,根据采食量计算得到每日NPP需要量为0.488~0.549 g.

关键词： 非植酸磷; 繁殖性能; 胫骨指标; 血浆甲状旁腺激素; 肉种母鸡

本文引用格式

蒋守群, 蒋宗勇, 郑春田, 丁发源, 阮栋 . 饲粮非植酸磷水平对39~46周龄黄羽肉种母鸡繁殖性能、胫骨指标和血浆生化指标的影响[J]. 动物营养学报, 2015 , 27(2) : 559 -568 . DOI: 10.3969/j.issn.1006-267x.2015.02.028

Abstract

This experiment was conducted to investigate the effects of dietary non-phytate phosphorus (NPP) level on reproduction performance, tibial indexes and plasma biochemical indexes of yellow-feathered broiler breeders aged from 39 to 46 weeks, and in order to determine the suitable phosphorus allowance of this phase. Eight hundred and ten 39-week-old parent Lingnan yellow-feathered broiler breeder hens were randomly assigned to 5 groups. Each group had 6 replicates with 27 birds per replicate. Group 1 was the control group, in which the birds were fed a corn-soybean meal basal diet with 0.30% NPP. Dietary NPP levels in groups 2 to 5 were adjusted to 0.35%, 0.40%, 0.45% and 0.50% from the basal diet, respectively; all other nutrient levels were identical. Birds were fed 122 g of diet per bird per day and watered ad libitum during the experimental period of 8 weeks. The results showed as follows: 1) dietary NPP level had no significant effects on average daily gain, average daily egg mass, the ratio of feed to egg, average egg weight, broken egg rate (P>0.05), had significant effects on laying rate and unqualified egg rate (P<0.05). Broiler breeders fed 0.45% NPP had a higher laying rate than those fed 0.30% and 0.40% NPP (P<0.05). Unqualified egg rate of 0.40% group was significantly lower than the other 4 groups (P<0.05). 2) There were significant influences of dietary NPP level on long diameter, short diameter, shape index, and eggshell strength of eggs produced during the period of 39 to 40 weeks (P<0.05), and eggshell strength of eggs from 45 to 46 weeks (P<0.05). 3) Dietary NPP level had no significant effect on hatching performance (fertilization rate, hatchability, salable chick rate and average salable chick birth weight) (P>0.05). 4) The contents of calcium and phosphorus in dry defatted tibial ash were significantly increased by dietary NPP supplementation (P<0.05). 5) The contents in plasma of parathyroid hormone was significantly higher in birds fed diets containing 0.40% and 0.45% NPP than in those of 0.30% and 0.35% NPP (P<0.05) and calcitonin was higher in birds fed 0.50% NPP than all other NPP levels (P<0.05). The results indicate that the optimal dietary NPP level for yellow-feathered broiler breeders aged from 39 to 46 weeks is 0.40% to 0.45%, equivalent to 0.488 to 0.549 g/d on the basis of calculated by feed intake.

Key words： non-phytate phosphorus; reproduction performance; tibial indexes; parathyroid hormone in plasma; broiler breeder hens

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