张燕 吴锦波 何世明 余春林 王蓉芳 苏元君 杨小林 李星亮 牟桑

摘要 为研究阿坝藏鸡蛋品质特性，并为阿坝藏鸡专门化品系选育工作等提供科学依据，试验选取阿坝藏鸡3个品系的鸡蛋，对鸡蛋的物理性质及全蛋氨基酸组成和含量进行测定，并以FAO/WHO氨基酸模式为评价标准，对阿坝藏鸡鸡蛋的营养价值进行评价。结果表明，阿坝藏鸡鸡蛋均含有17种氨基酸;必需氨基酸和鲜味氨基酸含量较高;氨基酸组成能满足理想氨基酸模式。这说明阿坝藏鸡鸡蛋氨基酸种类齐全，营养价值均衡。

关键词 阿坝藏鸡;氨基酸;蛋品质;营养评价

中图分类号 S-879.3  文献标识码 A  文章编号 0517-6611（2021）11-0091-03

doi：10.3969/j.issn.0517-6611.2021.11.024

开放科学（资源服务）标识码（OSID）：

The Quality and Amino Acid Composition Analysis，Nutritional Evaluation of Eggs of Aba Tibetan Chicken

ZHANG Yan，WU Jin-bo， HE Shi-ming et al

（Institute of Animal Science and Technology of Aba Tibetan and Qiang Autonomous Prefecture， Hongyuan，Sichuan 624402）

Abstract In order to explore the egg quality characteristics of Aba Tibetan chicken and provide scientific basis for the strain selection and breeding of Aba Tibetan chicken， the eggs were selected from three strains of Aba Tibetan chicken， and the physical properties， the composition and content of amino acids in the whole egg were determined. FAO/WHO amino acid model was used as the evaluation standards， the nutritional values of  Aba Tibetan chicken eggs were evaluated. The results showed that 17 kinds of amino acids were detected in all eggs of Aba Tibetan chicken.The eggs were rich in essential amino acids and flavor amino acids;the amino acid composition satisfied the ideal amino acid pattern. It was suggested that the eggs of Aba Tibetan had a complete variety of amino acids and had higher nutritional values.

Key words Aba Tibetan chicken;Amino acid;Egg quality;Nutritional evaluation

阿坝藏鸡主要分布于海拔1 400～3 500 m的高山峡谷地带，位于大渡河流域上游地区、岷江上游的黑水河流域地区和涪江流域上游地区，是川西北高原地区珍贵的遗传资源。它能适应恶劣多变的高寒气候环境，体型匀称，性情活泼、好斗，抗病力强，是发展我国青藏高原地区家禽养殖业的优良地方鸡品种。

笔者对阿坝藏鸡3个品系鸡蛋氨基酸含量进行了测定和比较，以期为阿坝藏鸡的保护、选育和开发利用提供依据。

1 材料与方法

1.1 试验材料

试验所用藏鸡蛋来自阿坝藏鸡核心育种场，采用笼养方式养殖，定时饲喂，管理条件、饲粮配方相同。

饲料营养成分含量如下：粗蛋白≥16.0%，粗纤维≤6.0%，钙3.2%～4.4%，总磷≥0.5%，氯化钠0.3%～0.8%，粗灰分≤15.0%，蛋氨酸0.3%～0.9%，水分≤14.0%。

添加植酸酶1 000 U/kg、总磷按标准的85%执行。原料组成为玉米、豆粕、磷酸氢钙、石粉、氯化钠、L-赖氨酸盐酸盐、复合预混合饲料、植酸酶等。……