Effects of substituting soybean meal with fermented rapeseed meal mixture on the growth performance, slaughter performance, meat quality, blood biochemical indices and intestinal barrier function in Langshan Chickens.

IF 3.8 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Zhaochen Wang, Tong Xing, Lin Zhang, Liang Zhao, Feng Gao
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引用次数: 0

Abstract

This study aimed to explore the effects of substituting soybean meal with a mixture of solid-state fermented rapeseed meal, apple pomace, and wheat bran on the growth performance, slaughter performance, meat quality, blood biochemical indices and intestinal barrier function of Langshan chickens. A total of 144 30-day-old Langshan chickens with similar body weights were randomly divided into three treatment groups, with six replicates per group and eight chickens per replicate: the control group (CON) was fed a corn-soybean meal basal diet, while the rapeseed meal mixture group (RSM) and the fermented rapeseed meal mixture group (FRSM) were fed diets substituting 5 % of soybean meal with rapeseed meal mixture and fermented rapeseed meal mixture, respectively. The trial lasted from 30 to 58 days of age. The results showed that compared to the CON group, the RSM group exhibited no significant changes in average daily feed intake (ADFI), average daily gain (ADG) and feed to gain ratio (F/G) (P > 0.05); the dressing percentage, half-eviscerated yield and eviscerated yield decreased (P < 0.05); the pH24h and yellowness of breast muscle increased (P < 0.05); the crypt depth of the jejunum decreased, and the villus height/crypt depth ratio increased (P < 0.05); the serum D-lactic acid content decreased (P < 0.05). Compared to the CON group, the FRSM group exhibited no significant changes in ADFI, ADG and F/G (P > 0.05); the eviscerated yield increased (P < 0.05); the serum glucose and uric acid levels decreased (P < 0.05); the crypt depth of the jejunum decreased, and the villus height/crypt depth ratio increased (P < 0.05); the serum D-lactic acid content decreased (P < 0.05). Furthermore, compared to the RSM group, the FRSM group exhibited no significant changes in ADFI, ADG and F/G (P > 0.05); the dressing percentage, half-eviscerated yield and eviscerated yield increased (P < 0.05); the pH24h of breast muscle decreased; the serum glucose and uric acid levels decreased (P < 0.05).In conclusion, RSM reduced the slaughter performance of Langshan chickens, while FRSM improved their slaughter performance. Both RSM and FRSM improved the jejunal morphology and intestinal permeability in Langshan chickens. In conclusion, fermentation improved the feed value of the rapeseed meal mixture; replacing part of the soybean meal diet with fermented rapeseed meal mixture helped improve the slaughter performance and intestinal barrier of Langshan chickens.

发酵菜籽粕混合物替代豆粕对兰山鸡生长性能、屠宰性能、肉质、血液生化指标和肠道屏障功能的影响
本研究旨在探讨用固态发酵菜籽粕、苹果渣和麦麸的混合物替代豆粕对兰山鸡生长性能、屠宰性能、肉质、血液生化指标和肠道屏障功能的影响。将 144 只体重相近的 30 日龄谅山鸡随机分为 3 个处理组,每组 6 个重复,每个重复 8 只鸡:对照组(CON)饲喂玉米-豆粕基础日粮,菜籽粕混合物组(RSM)和发酵菜籽粕混合物组(FRSM)分别饲喂以菜籽粕混合物和发酵菜籽粕混合物替代 5%豆粕的日粮。试验从 30 天龄持续到 58 天龄。结果表明,与 CON 组相比,RSM 组的平均日采食量(ADFI)、平均日增重(ADG)和料增重比(F/G)均无显著变化(P > 0.05);拌料率、半开膛率和开膛率均下降(P < 0.05);胸肌 pH24h 值和黄度升高(P < 0.05);空肠隐窝深度降低,绒毛高度/隐窝深度比升高(P < 0.05);血清 D-乳酸含量降低(P < 0.05)。与CON组相比,FRSM组的ADFI、ADG和F/G无显著变化(P > 0.05);开裂率增加(P < 0.05);血清葡萄糖和尿酸水平降低(P < 0.05);空肠隐窝深度降低,绒毛高度/隐窝深度比增加(P < 0.05);血清D-乳酸含量降低(P < 0.05)。此外,与 RSM 组相比,FRSM 组的 ADFI、ADG 和 F/G 无显著变化(P > 0.05);拌料率、半开膛率和开膛率增加(P < 0.05);胸肌 pH24h 值降低;血清葡萄糖和尿酸水平降低(P < 0.05)。RSM和FRSM都改善了兰山鸡的空肠形态和肠道渗透性。总之,发酵提高了菜籽粕混合物的饲料价值;用发酵菜籽粕混合物替代部分豆粕日粮有助于改善兰山鸡的屠宰性能和肠道屏障。
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来源期刊
Poultry Science
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
0
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.
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