Pulse Brain · Growing Health Evidence Index
Peer-reviewed

A systematic review and meta-analysis of the effects of inclusion of microalgae in dairy cows' diets on nutrient digestibility, fermentation parameters, blood metabolites, milk production, and fatty acid profiles

Soumaya Boukrouh; Fadoua Karouach; Soufiane El Aayadi; Bouchra El Amiri; Hornick Jean-Luc; Abdelaziz Nilahyane; Abdelaziz Hirich

Archives animal breeding/Archiv für Tierzucht · 2026

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Summary

Abstract. Recently, microalgae have been used as protein supplements to improve the productivity of dairy cows. However, the results are inconsistent among different studies. Thus, the aim of this study was to assess the effects of dietary microalgae incorporation on animal performance. The effect of microalgae was assessed by examining the raw mean differences (RMDs) between the treatment (with microalgae) and control (without microalgae) diets using a random-effect model. Heterogeneity was evaluated through meta-regression and subgroup analyses using microalgae species, inclusion level, days in milk, experimental duration, and cow breed as covariates. Microalgae supplementation decreased the intake of dry matter (DM), organic matter, and neutral detergent fiber (NDF). NDF digestibility i

Source type
Peer-reviewed study
DOI
10.5194/aab-69-101-2026
Catalogue ID
NRmo3d4gae-07k
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