牛膝提取物对饲喂不同蛋白质日粮的肉鸡生长、消化率、微生物群、气体排放和肉质的影响

IF 2.7 3区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Journal of Animal Science and Technology Pub Date : 2024-05-01 Epub Date: 2024-05-31 DOI:10.5187/jast.2023.e60
Sharif Uddin Khan, Sung Bo Cho, In Ho Kim
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引用次数: 0

摘要

牛膝提取物(AJE)是一种具有抗炎、抗氧化和抗微生物特性的多功能产品。本研究旨在评估在标准日粮和低粗蛋白日粮中添加牛膝提取物对肉鸡生长性能、营养物质消化率、排泄物细菌数、排泄物有害气体排放量、胸脯肉品质和器官重量的影响。将 340 只一天龄的罗斯 308 肉鸡(初始体重(BW)为 43.10 ± 1.46 克,每个处理 5 个重复笼子,每个笼子 17 只鸡)随机分配到 4 个日粮处理组中的 1 个组,进行为期 35 天的试验。日粮根据肉鸡的三个日龄阶段提供。初生阶段的肉鸡饲喂基础日粮。第 8 天至第 35 天饲喂试验日粮。生长期(第 8-21 天)和育成期(第 22-35 天)饲喂肉鸡:标准粗蛋白 (SCP) 日粮和 LCP 日粮,分别添加 0.025% 和 0.05% 的 AJE。其中,SCP 和 LCP 日粮在第 8-21 天的 CP 分别为 21.50% 和 20.86%,在第 22-35 天的 CP 分别为 20.00% 和 19.40%。与添加或不添加 AJE 的 LCP 日粮相比,添加 0.025% AJE 的 SCP 日粮在育成期的体重增重(BWG)较高(p < 0.5),而在整个育成期的饲料转化率和体重增重有降低的趋势。此外,添加 0.025% AJE 的 SCP 日粮提高了干物质和氮的消化率。除 pH 值外,肉质参数无明显差异。有趣的是,在添加不同水平的 CP 和 AJE 后,发现向环境排放的 NH3 气体较少。因此,我们得出结论,在 SCP 日粮中添加 0.025% 的 AJE 可提高肉鸡的生长性能和营养消化率,同时降低粪便中 NH3 的排放量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Achyranthes japonica extract on growth, digestibility, microbiota, gas emission, and meat quality in broilers fed different protein diets.

Achyranthes japonica extract (AJE) is a multifuctional products that express anti-inflammatory, antioxidant and anti-microbial properties. This study was aimed to evaluate the effects of AJE addition to standard and low crude protein (LCP) diet on growth performance, nutrient digestibility, excreta bacterial count, excreta noxious gas emissions, breast meat quality, and organ weight of broiler chicken. A total of 340 one-day-old Ross 308 broilers [initial body weight (BW) of 43.10 ± 1.46 g, 5 replicate cages per treatment, and 17 birds per cage] were randomly distributed into 1 of 4 dietary treatment groups for a 35 day trial. The diets were provided based on three age stage of the broiler. In the starter stage broiler were fed basal diet. Experimental diet were fed to broiler from day 8 to 35. In growing (days 8-21) and finishing (days 22-35) stage broiler were fed: Standard crude protein (SCP) diet and LCP diet with 0.025% and 0.05% of AJE supplementation respectively. Here, the SCP and LCP diets were 21.50% and 20.86% CP during days 8-21 and 20.00% and 19.40% CP during days 22-35, respectively. The SCP diets with 0.025% AJE supplementation resulted in higher (p < 0.5) BW gain (BWG) at finishing stage and a tendency to lower feed conversion ratio and BWG in the overall period compared to LCP diets with or without AJE supplemenation. Moreover, dry matter and nitrogen digestibility were increased with SCP diet along with 0.025% of AJE. No significant difference was found in meat quality parameters except for pH. Interestingly, the NH3 gas emission to the environment was found to be less with different levels of CP and AJE supplementation. Therefore, we concluded that the addition of 0.025% AJE to the SCP diet improved broiler growth performance and nutrient digestibility with low fecal NH3 emissions.

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来源期刊
Journal of Animal Science and Technology
Journal of Animal Science and Technology Agricultural and Biological Sciences-Food Science
CiteScore
4.50
自引率
8.70%
发文量
96
审稿时长
7 weeks
期刊介绍: Journal of Animal Science and Technology (J. Anim. Sci. Technol. or JAST) is a peer-reviewed, open access journal publishing original research, review articles and notes in all fields of animal science. Topics covered by the journal include: genetics and breeding, physiology, nutrition of monogastric animals, nutrition of ruminants, animal products (milk, meat, eggs and their by-products) and their processing, grasslands and roughages, livestock environment, animal biotechnology, animal behavior and welfare. Articles generally report research involving beef cattle, dairy cattle, pigs, companion animals, goats, horses, and sheep. However, studies involving other farm animals, aquatic and wildlife species, and laboratory animal species that address fundamental questions related to livestock and companion animal biology will also be considered for publication. The Journal of Animal Science and Technology (J. Anim. Technol. or JAST) has been the official journal of The Korean Society of Animal Science and Technology (KSAST) since 2000, formerly known as The Korean Journal of Animal Sciences (launched in 1956).
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