锰氨基酸复合物对肉鸡生长性能、肉质、胸肌和骨骼发育的影响

IF 1.6 3区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE British Poultry Science Pub Date : 2024-10-01 Epub Date: 2024-07-12 DOI:10.1080/00071668.2024.2346640
L Li, M Ma, G Zuo, J Xiao, J Chen, X He, Z Song
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引用次数: 0

摘要

1.本研究旨在探讨日粮中补充锰(Mn)氨基酸复合物对肉鸡生长性能、锰沉积、肉质、胸肌和骨骼发育的影响。.将 504 只一天龄的雄性 Arbor Acres 肉鸡随机分为 7 个处理:对照日粮(CON;基础日粮,不额外添加锰)、锰日粮(MnN 为 Numine®-Mn;CON + 40、80、120 或 160 毫克锰/千克)、锰-S 组(MnS;CON + 120 毫克锰/千克,以 MnSO4-H2O 计)、锰-A 日粮(MnA,以水解羽毛粉中的锰计;CON + 40 毫克锰/千克,以 MnA 计)。各饲养阶段不同日粮的平均日增重(ADG)和采食量(ADFI)无明显差异(P > 0.05)。日粮中 MnN 的添加量对开食期和整个生长期的 FCR 有四次方影响,80 mg/kg 时 FCR 最低(p p 45 min 和 pH24 h,乳房肌肉剪切力、滴水损失和压力损失降低(p MYOD 表达在第 21 d,SOD 表达在第 42 d,乳房肌肉中 MuRF1 和 Atrogin-1 mRNA 水平在第 42 d 降低)。转录组分析表明,MnN对肌肉发育的调节作用显著地丰富了信号通路,如粘附、ECM-受体、MAPK、mTOR和AMPK。此外,膳食 MnN 会明显影响胫骨长度和生长板的发育(p SOX-9、Runx-2、Mef2c、TGF-β、Ihh、Bcl-2 和 Beclin1,降低 Bax 和 Caspase-3 (p
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Effect of manganese amino acid complexes on growth performance, meat quality, breast muscle and bone development in broilers.

1. This study was conducted to investigate the effects of dietary supplementation of manganese (Mn) amino acid complexes on growth performance, Mn deposition, meat quality, breast muscle and bone development of broilers.2. A total of 504, one-day-old male Arbor Acres broilers were randomly divided into seven treatments; control diet (CON; basal diet, no extra Mn addition), manganese diet (MnN as Numine®-Mn; CON + 40, 80, 120 or 160 mg Mn/kg), manganese-S group (MnS; CON + 120 mg Mn/kg as MnSO4·H2O), manganese-A diet (MnA as Mn from hydrolysed feather meal; CON + 40 mg Mn/kg as MnA).3. There were no significant differences for average daily gain (ADG) or feed intake (ADFI) among diets during the feed phases (p > 0.05). The FCR in the starter and over the whole period were quadratically affected by dietary MnN dosage and gave the lowest FCR at 80 mg/kg (p < 0.05). The Mn content of thigh muscle, jejunum, heart, pancreas, liver and tibia increased linearly with MnN addition (p < 0.05).4. For meat quality, MnN significantly increased colour (a*), pH45 min and pH24 h, reduced shear force, drip loss and pressure loss of breast muscle (p < 0.05).5. Moreover, MnN significantly upregulated MYOD expression at d 21 and SOD expression at d 42, decreased MuRF1 and Atrogin-1 mRNA level at d 42 in breast muscle. Transcriptome analysis revealed that the regulating effect of MnN on muscle development significantly enriched signalling pathways such as adhesion, ECM-receptor, MAPK, mTOR and AMPK. Furthermore, dietary MnN significantly affected tibia length and growth plate development (p < 0.05) and promoted growth plate chondrocytes by increasing SOX-9, Runx-2, Mef2c, TGF-β, Ihh, Bcl-2 and Beclin1 and decreasing Bax and Caspase-3 (p < 0.05) expression which affect longitudinal tibial development.6. In conclusion, Mn amino acid complexes could improve growth performance, tissue Mn deposition, breast muscle development, meat quality and bone development.

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来源期刊
British Poultry Science
British Poultry Science 农林科学-奶制品与动物科学
CiteScore
3.90
自引率
5.00%
发文量
88
审稿时长
4.5 months
期刊介绍: From its first volume in 1960, British Poultry Science has been a leading international journal for poultry scientists and advisers to the poultry industry throughout the world. Over 60% of the independently refereed papers published originate outside the UK. Most typically they report the results of biological studies with an experimental approach which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: anatomy, embryology, biochemistry, biophysics, physiology, reproduction and genetics, behaviour, microbiology, endocrinology, nutrition, environmental science, food science, feeding stuffs and feeding, management and housing welfare, breeding, hatching, poultry meat and egg yields and quality.Papers that adopt a modelling approach or describe the scientific background to new equipment or apparatus directly relevant to the industry are also published. The journal also features rapid publication of Short Communications. Summaries of papers presented at the Spring Meeting of the UK Branch of the WPSA are published in British Poultry Abstracts .
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