三种益生菌对罗曼粉壳蛋鸡蛋品质的影响

Effect of three dietary supplementations of probiotic bacteria on egg quality and egg cholesterol concentrations of Lehmann Pink layers

为探究三种草科鸡源益生菌（枯草芽孢杆菌、植物乳杆菌和戊糖片球菌）对鸡蛋蛋品质的影响．选用1日龄480羽罗曼粉壳蛋鸡，随机分为4组，每组3个重复，每个重复40只鸡，对照组（CP）饲喂基础饲粮，试验组在基础饲粮的基础上分别添加枯草芽孢杆菌（Bacillus subtills，BS）、植物乳杆菌（Lactobacillus plantarum，LP）和戊糖片球菌（Pediococcu spentosaceus，PP），活菌数大于10 7CFU／g．220日龄测定600枚鸡蛋的蛋品质：与对照组相比，饲料中添加植物乳杆菌（LP）能加深蛋黄颜色2．91％（P〈0．05）．戊糖片球菌（PP）与对照组相比，蛋黄颜色加深了1．68％（P〈0．05）．BS组与对照组相比，平均蛋黄重增加了4．09％（P〈0．05）；蛋壳平均厚度增加了9．64％（P〈0．05）；蛋重增加了3．22％（P〈0．05）．在改善蛋品质整体效果上，枯草芽孢杆菌优于植物乳杆菌，植物乳杆菌优于戊糖片球菌，而益生菌对蛋黄胆固醇的影响并不稳定．本试验为微生态制剂在蛋鸡生产上的应用与推广提供了科学依据．

This experiment was conducted to investigate the impact of Caoke chicken probiotics （Bacillus subtitles, Lactobacillus plantarum and Pediococcus pentosaceus） on egg quality. Four hundred and eight- y new-born chicks of Lohmann Pink layers were randomly divided into 4 groups with 3 replicats. The control group was fed the basic diet （CP）. And the experimental groups were added （Bacillus subtitles, BS）, （Lactobacillus plantarum, LP） , and （ Pediococcus pentosaceus, PP）, respectively. The average amount of bacteria was no less than 107 CFU per day. The eggs quality analysis of 600 eggs of Two hun- dred and twenty-day-old Lohmann Pink layers breed hens demonstrated as followed. Compared with the control group, There was a significant increase the yolk color of group LP at 2.91%（P〈0.05）, and of group PP, the increase was 1.68% （P〈0.05）. The average weight of the yolk of BS was higher than CP by 4. 09% （P〈0.05）, the average shell thickness thicker by 9.64% （P〈0. 05）, and the egg weight of BS than CP 3.22 % higher （P〈0.05）. All analysis showed that egg quality traits are significantly affect- ed by three different groups of probiotics. Bacilli subtilize （BS） performs better than Lactobacillus plantarum （LP）, and Lactobacillus plantarum （LP） performs better than Pediococcus pentosaceus （PP）. But all the three supplementation had no significant effect on cholesterol concentrations of eggs. This study provided basic information for putting the probiotic into allocation of egg production.