Lohmann Select Leghorn-lite 和 Shaver Heritage White Leghorn 母鸡在饲喂含有未磨碎和磨碎燕麦壳的日粮时的反应比较

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-05 DOI:10.1139/cjas-2024-0005

A. Mills, Anderson N. Maina, E. Kiarie

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引用次数: 0

摘要

给 57 周龄的 Lohmann Select Leghorn- Lites（LSL）和 44 周龄的 Shavers Heritage White Leghorns（SHW）饲喂标准商业饲料（对照组）或对照组与细（FOH）或粗（COH）燕麦壳按 80:20 重量比的混合物，饲喂 28 天。在产蛋指数（EP）和采食量（FI）方面，品系与日粮之间没有交互作用（P>0.05），日粮也没有影响。然而，LSL母鸡的FI与SHW母鸡相似（P>0.05），但EP高于SHW母鸡（P>0.05）。在表观毛重（ARGE）和胗重方面，没有观察到品系与日粮的交互作用（P>0.05）。然而，与饲喂燕麦壳的母鸡相比，对照组母鸡的表观毛重（ARGE）更高，胗的重量更轻（P<0.01）。此外，COH雌鸡与FOH雌鸡相比，ARGE更高，胗更重。与 LSL 母鸡相比，SHW 母鸡的空肠隐窝深度更大（P=0.011）。品系和日粮对盲肠消化道短链脂肪酸（SFCA）的交互作用（P=0.041）表明，燕麦壳可降低 LSL 蛋鸡的 SCFA，但对 SHW 蛋鸡没有影响。总之，尽管年龄存在差异，但与前辈相比，现代母鸡能够适应摄入富含不溶性纤维的结构材料，而不会对产蛋量和采食量产生负面影响。

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Comparative responses of Lohmann Select Leghorn-lite and Shaver Heritage White Leghorn hens when fed diets containing unground and ground oat hulls

A standard commercial mash (control), or a mixture of control and fine (FOH) or coarse (COH) oat hulls at a ratio of 80:20 wt/wt were fed to 57-wk old Lohmann Select Leghorn- Lites (LSL) and 44-wk old Shavers Heritage White Leghorns (SHW) for 28 days. There was no (P>0.05) strain and diet interaction or diet effects on egg production indices (EP) and feed intake (FI). However, LSL hens had similar (P>0.05) FI but higher (P>0.05) EP than SHW. There was no strain and diet interaction observed on apparent retention of gross energy (ARGE) and gizzard weight (P>0.05). However, the control hens had higher ARGE, and lighter gizzards compared to oat hull-fed hens (P<0.01). In addition, COH hens had higher ARGE and heavier gizzards compared to FOH hens. The SHW hens exhibited greater jejunal crypt depth (P=0.011) compared to LSL hens. An interaction (P=0.041) between strain and diets on ceca digesta short chain fatty acids (SFCA) was such that oat hulls reduced SCFA in LSL but not in SHW hens. In conclusion, despite differences in age, relative to predecessors the modern hen is adaptable to ingestion of structural material rich insoluble fibre without negative impact on egg production and feed intake

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.