Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (10): 3305-3315.doi: 10.11843/j.issn.0366-6964.2022.10.004

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Research Advances on Low-Protein Diets of Laying Hens

QIU Kai,CHANG Xinyu,CHE Yanzhuo,WANG Jing,ZHANG Haijun,QI Guanghai,WU Shugeng*   

  1. Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2022-01-07 Online:2022-10-23 Published:2022-10-26

Abstract: Scarcity of feed protein source and nitrogen emission pollution are important problems in poultry industry. For this reason, low-protein diets for laying hens came into being in recent years and was gradually widely used. Low-protein diets of laying hens in recent studies were mainly formulated according to the standard ileal digestible amino acid content of feedstuffs, in order to reduce protein resources consumption, feeding cost, and nitrogen emission. Here, the theoretical basis of low-protein diet and its research progress in laying hens were briefly reviewed, aiming to improve the application of low-protein diet in laying hens.

Key words: laying hens, low-protein diets, amino acid balance, energy balance, functional amino acid, albumen quality

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