Microalgae as feed additives in poultry: A review on the health-promoting effects

IF 4.6 2区生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Algal Research-Biomass Biofuels and Bioproducts Pub Date : 2024-10-01 DOI:10.1016/j.algal.2024.103733

Sofie Van Nerom , Bert Coleman , Renée De Baets , Filip Van Immerseel , Johan Robbens , Evelyne Delezie

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Abstract

This review explores the effects of the inclusion of microalgal biomass in feed on the health of poultry (broilers and laying hens). Microalgae have emerged as a promising feed additive, valued not only for their rich nutritional profile, but also for their bioactive substances. Bioactive compounds, such as phenolics, polyunsaturated fatty acids, oligosaccharides and carotenoids, exhibit antioxidant, anti-inflammatory, antibacterial, and antiviral functions, which hold promise for promoting poultry health. With the ban on prophylactic antibiotic use in feed, microalgal biomass emerges as an innovative feed additive to enhance growth performance and prevent health issues in poultry. This review extensively explains the critical health parameters of poultry, including histology of the intestinal tract, intestinal permeability, immunity, antioxidant status and prebiotic effects on the intestinal microbiome. Furthermore, it offers valuable insights into the inclusion of microalgae in poultry feed, promoting these health parameters. It concludes with suggestions for further research and practical recommendations on how to improve poultry health using microalgal biomass.

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微藻作为家禽饲料添加剂：健康促进作用综述

本综述探讨了在饲料中添加微藻生物质对家禽（肉鸡和蛋鸡）健康的影响。微藻已成为一种前景广阔的饲料添加剂，其价值不仅在于其丰富的营养成分，还在于其生物活性物质。酚类、多不饱和脂肪酸、低聚糖和类胡萝卜素等生物活性化合物具有抗氧化、抗炎、抗菌和抗病毒功能，有望促进家禽健康。由于禁止在饲料中使用预防性抗生素，微藻生物质成为一种创新的饲料添加剂，可提高家禽的生长性能并预防健康问题。这篇综述广泛阐述了家禽的关键健康参数，包括肠道组织学、肠道渗透性、免疫力、抗氧化状态以及益生菌对肠道微生物组的影响。此外，它还就在家禽饲料中添加微藻以促进这些健康参数提供了有价值的见解。报告最后就如何利用微藻生物质改善家禽健康提出了进一步研究的建议和实用性建议。

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来源期刊

Algal Research-Biomass Biofuels and Bioproducts BIOTECHNOLOGY & APPLIED MICROBIOLOGY-

CiteScore

9.40

自引率

7.80%

发文量

332

期刊介绍： Algal Research is an international phycology journal covering all areas of emerging technologies in algae biology, biomass production, cultivation, harvesting, extraction, bioproducts, biorefinery, engineering, and econometrics. Algae is defined to include cyanobacteria, microalgae, and protists and symbionts of interest in biotechnology. The journal publishes original research and reviews for the following scope: algal biology, including but not exclusive to: phylogeny, biodiversity, molecular traits, metabolic regulation, and genetic engineering, algal cultivation, e.g. phototrophic systems, heterotrophic systems, and mixotrophic systems, algal harvesting and extraction systems, biotechnology to convert algal biomass and components into biofuels and bioproducts, e.g., nutraceuticals, pharmaceuticals, animal feed, plastics, etc. algal products and their economic assessment