Supplementation of precision biotic leads to improved growth performance by modulating the microbiome of broiler chickens fed corn or wheat-based diets

IF 3.8 1区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Poultry Science Pub Date : 2024-10-29 DOI:10.1016/j.psj.2024.104451

C Bortoluzzi , M Segura-Wang , R Aureli , A Leduc , MA Iuspa , AJ Cowieson

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引用次数: 0

Abstract

The objective of the present study was to evaluate the effect of a precision biotic (PB; Symphiome®, dsm-firmenich) on the growth performance, nutrient digestibility, litter quality, blood uric acid (UA) concentration, cecal short-chain fatty acids (SCFA) concentration, and ileal and cecal microbiome of broiler chickens fed corn or wheat-based diets. One-day-old broiler chicks were placed in a completely randomized design (2 × 2 factorial scheme) in 4 treatments, 8 replicates/treatment, and 16 birds/replicate. The treatments were a corn or wheat and soybean meal-based diet without or with supplementation of 0.9 kg/MT of PB. All the birds were vaccinated against coccidiosis at the time of placement (Paracox 5). Growth performance was evaluated weekly and at the end of the experiment. At d 35, blood was collected to determine UA concentration and cecal content for SCFA concentration analysis. Ileal digesta was also collected for nutrient digestibility analysis, and ileal digesta and cecal content were collected for microbiome analysis. The data were submitted to two-way ANOVA (P ≤ 0.05), and LSM was used to separate the means in case of interaction. During the starter and grower phases of the study, a better body weight gain (P = 0.0008 and P = 0.04, respectively) was observed in birds fed wheat compared to corn-based diets. From 28 to 36 d of age, the supplementation of PB increased feed intake (P = 0.05), and tended (P = 0.06) to improve the feed conversion ratio by 4.3 points vs non-supplementated birds. Birds fed wheat-based diets had higher (P = 0.02) blood UA than corn based-diets fed birds, and the supplementation of PB led to a reduction (P = 0.02) of blood UA compared to non-supplemented birds. The supplementation of PB changed the abundance of core metabolic pathways of the microbiome, mostly related to protein metabolism, which led to a reduction in blood UA concentration and increase of cecal SCFA concentrations. In conclusion, by beneficially modulating the microbiome, the supplementation of PB was translated into improved growth performance of broiler chickens fed corn or wheat-based diets.

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通过调节以玉米或小麦为基础日粮的肉鸡的微生物群，补充精准生物制剂提高生长性能

本研究旨在评估精准生物制剂（PB；Symphiome®，dsm-firmenich）对饲喂玉米或小麦日粮的肉鸡的生长性能、营养物质消化率、粪便质量、血尿酸（UA）浓度、盲肠短链脂肪酸（SCFA）浓度以及回肠和盲肠微生物组的影响。在完全随机设计（2 × 2因子方案）中，将一天龄的肉用仔鸡分为 4 个处理，每个处理 8 个重复，每个重复 16 只。处理为不添加或添加每吨 0.9 千克 PB 的玉米或小麦和豆粕日粮。所有家禽在饲养时都接种了球虫病疫苗（Paracox 5）。每周和实验结束时对生长性能进行评估。第 35 天，收集血液以测定 UA 浓度，并收集盲肠内容物以分析 SCFA 浓度。还收集回肠消化物进行营养消化率分析，并收集回肠消化物和盲肠内容物进行微生物组分析。对数据进行双因素方差分析（P ≤ 0.05），如果存在交互作用，则使用 LSM 来分离均值。在研究的初生期和生长期，与玉米日粮相比，饲喂小麦日粮的家禽体重增加更快（分别为 P = 0.0008 和 P = 0.04）。从 28 日龄到 36 日龄，添加 PB 可提高采食量（P = 0.05），并且与未添加 PB 的鸟类相比，有提高饲料转化率 4.3 个百分点的趋势（P = 0.06）。饲喂小麦日粮的鸟类比饲喂玉米日粮的鸟类血液中的UA更高（P = 0.02），与未添加 PB 的鸟类相比，添加 PB 可降低血液中的 UA（P = 0.02）。补充 PB 改变了微生物组核心代谢途径的丰度（主要与蛋白质代谢有关），从而降低了血液中的 UA 浓度，增加了盲肠中的 SCFA 浓度。总之，通过对微生物组的有益调节，补充 PB 可改善以玉米或小麦为基础日粮的肉鸡的生长性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Poultry Science 农林科学-奶制品与动物科学

CiteScore

7.60

自引率

15.90%

发文量

审稿时长

94 days

期刊介绍： First self-published in 1921, Poultry Science is an internationally renowned monthly journal, known as the authoritative source for a broad range of poultry information and high-caliber research. The journal plays a pivotal role in the dissemination of preeminent poultry-related knowledge across all disciplines. As of January 2020, Poultry Science will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers. An international journal, Poultry Science publishes original papers, research notes, symposium papers, and reviews of basic science as applied to poultry. This authoritative source of poultry information is consistently ranked by ISI Impact Factor as one of the top 10 agriculture, dairy and animal science journals to deliver high-caliber research. Currently it is the highest-ranked (by Impact Factor and Eigenfactor) journal dedicated to publishing poultry research. Subject areas include breeding, genetics, education, production, management, environment, health, behavior, welfare, immunology, molecular biology, metabolism, nutrition, physiology, reproduction, processing, and products.