肉鸡耐受性研究中微生物饲料添加剂的功效与安全性评估

Efficacy and Safety Assessment of Microbiological Feed Additive for Chicken Broilers in Tolerance Studies.

作者信息

Kupryś-Caruk Marta, Michalczuk Monika, Chabłowska Beata, Stefańska Ilona, Kotyrba Danuta, Parzeniecka-Jaworska Marta

机构信息

Department of Fermentation Technology, prof. W. Dąbrowski Institute of Agricultural and Food Biotechnology, 02-532 Warsaw, Poland.

Department of Specific Animal Breeding, Faculty of Animal Sciences, Warsaw University of Life Sciences, 02-786 Warsaw, Poland.

出版信息

J Vet Res. 2018 Mar 30;62(1):57-64. doi: 10.1515/jvetres-2018-0008. eCollection 2018 Mar.

DOI:10.1515/jvetres-2018-0008

PMID:29978128

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5957462/

Abstract

INTRODUCTION

One aim of the study was to evaluate the impact when added to feed of the two potentially probiotic strains of lactic acid bacteria (LAB) K KKP 593/p and KKP 825 on production performance, health, and the composition of gut microbiota. The complementary aim was to assess the safety of these strains in broiler rearing.

MATERIAL AND METHODS

A total of 500 one-day-old Ross 308 chicks were divided into four groups. The experimental factor was the admixture of bacterial preparation to the feed at different doses: the recommended maximum dose, a dose ten times higher, the recommended minimum dose, and a zero dose for the control group not receiving bacteria.

RESULTS

Addition of bacteria to the diets did not have a significant effect on the final body weight, final body weight gain, nor total feed intake or feed conversion. However, lactic acid bacteria had a positive effect on chicken health. Mortality among chickens fed with LAB was reduced. Moreover, LAB feeding inhibited the growth of spp. and in the intestines. There were no significant differences in chicken performance by dose of bacteria in the feed. The group dosed with LAB ten times higher than the recommended maximum did not demonstrate changes in biochemical or haematological parameters of blood compared to the remaining groups.

CONCLUSION

Feeding chicken broilers with two potentially probiotic LAB strains is safe and impacts animal health positively.

摘要

引言

本研究的一个目的是评估两种潜在的益生菌乳酸菌（LAB）菌株KKP 593/p和KKP 825添加到饲料中对生产性能、健康状况和肠道微生物群组成的影响。另一个目的是评估这些菌株在肉鸡饲养中的安全性。

材料与方法

总共500只1日龄的罗斯308雏鸡被分为四组。实验因素是将细菌制剂以不同剂量添加到饲料中：推荐最大剂量、高十倍的剂量、推荐最小剂量，以及不给细菌的对照组的零剂量。

结果

在日粮中添加细菌对最终体重、最终体重增加、总采食量或饲料转化率均无显著影响。然而，乳酸菌对鸡的健康有积极影响。饲喂乳酸菌的鸡的死亡率降低。此外，饲喂乳酸菌抑制了肠道中某些菌属的生长。饲料中细菌剂量对鸡的生产性能没有显著差异。与其他组相比，饲喂比推荐最大剂量高十倍的乳酸菌的组在血液生化或血液学参数方面没有表现出变化。