嗜酸乳杆菌后生元对初产蛋鸡生产性能、血液指标和鸡蛋品质的影响

doi:10.16431/j.cnki.1671-7236.2024.11.017

摘要/Abstract

摘要： 【目的】本研究旨在揭示饲粮添加嗜酸乳杆菌后生元(Lactobacillus acidophilus post-biotic,LAPB)对初产蛋鸡生产性能、血液指标和鸡蛋品质的影响。【方法】试验采用单因子试验设计，选取216只23周龄健康海兰褐蛋鸡，随机分入3个处理组，每处理6个重复，每重复12只鸡。对照组饲喂基础饲粮，试验组分别饲喂添加0.1%和0.2% LAPB的基础饲粮。预饲1周，正式试验期8周，每天记录产蛋情况，每周结料，计算生产性能。在第4和8周，每重复采集5枚鸡蛋，测定鸡蛋品质。试验结束时，每重复随机选取1只蛋鸡，采集血样，测定血常规和血清生化指标。【结果】与对照组相比，饲粮添加0.1%或0.2% LAPB增加了初产蛋鸡的平均蛋重、平均日产蛋重(P＜0.05)，降低了料蛋比(P＜0.05)，提高了蛋黄颜色、浓稀蛋白比和蛋白高度(P＜0.05)，对血常规指标无影响(P＞0.05)，增加了血清中总蛋白、总胆固醇、甘油三酯、高密度脂蛋白和低密度脂蛋白含量(P＜0.05)；其中，0.1%添加水平增加了蛋鸡血清肌酐含量(P＜0.05)，降低了谷草转氨酶活力(P＜0.05)。【结论】饲粮添加0.1%或0.2% LAPB可有效改善初产蛋鸡的生产性能和鸡蛋品质，并且能调节脂肪代谢，增强肝肾健康、机体免疫力和抗氧化性能，推荐使用量为0.1%。

关键词: 嗜酸乳杆菌; 后生元; 初产蛋鸡; 生产性能; 蛋品质

Abstract: 【Objective】 The purpose of this study was to reveal the effect of dietary supplementation with Lactobacillus acidophilus post-biotic (LAPB) on the production performance,blood indexes and egg quality of laying hens in the initial laying stage. 【Method】 A total of 216 23-week-old healthy Hy-line Brown laying hens were randomly divided into 3 treatment groups,with 6 replicates and 12 chickens per replicate.The control group was fed a basal diet,and the experimental groups were fed the basal diet supplemented with 0.1% or 0.2% LAPB,respectively.One week was used for feed adaption.The formal feeding period was 8 weeks.The egg production was recorded every day,and the feed intake was recorded weekly.At weeks 4 and 8,5 eggs were collected per replicate for egg quality determination.At the end of the feeding,one layer per replicate was selected for blood samples collection,and then blood routine and serum biochemical indexes were measured. 【Result】 Compared with control group,the addition of 0.1% or 0.2% LAPB in diets significantly increased the average egg weight and average daily egg mass (P<0.05),reduced the feed-to-egg ratio (P<0.05),improved the egg yolk color,thick/thin albumen ratio and albumen height (P<0.05),had no effect on blood routine indicators (P>0.05),and increased the contents of total protein,total cholesterol,triglycerides,high-density lipoprotein and low-density lipoprotein in serum (P<0.05),among which,the 0.1% addition level increased the serum creatinine content and reduced the activity of aspartate aminotransferase of laying hens in the initial laying stage (P＜0.05). 【Conclusion】 Dietary addition of 0.1% or 0.2% LAPB could effectively improve the production performance and egg quality of laying hens in the initial laying stage,and regulate fat metabolism,enhance liver and kidney health,immunity and antioxidant capacity,and the recommended dosage was 0.1%.

Key words: Lactobacillus acidophilus; post-biotic; laying hens in the initial laying stage; production performance; egg quality

中图分类号:

S816.7

邱凯, 官小凤, 桑杨, 刘志云, 刘国华. 嗜酸乳杆菌后生元对初产蛋鸡生产性能、血液指标和鸡蛋品质的影响[J]. 中国畜牧兽医, 2024, 51(11): 4824-4832.

QIU Kai, GUAN Xiaofeng, SANG Yang, LIU Zhiyun, LIU Guohua. Effects of Lactobacillus acidophilus Post-Biotic on Production Performance, Blood Indexes and Egg Quality of Laying Hens in the Initial Laying Stage[J]. China Animal Husbandry and Veterinary Medicine, 2024, 51(11): 4824-4832.

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