A diet with 10% lipid-extracted Nannochloropsis oculata meal was well tolerated by adolescent male rabbits, which showed similar final body weight, serum urea nitrogen, blood glucose, and organ histology in comparison with rabbits fed a control diet. Finishing wethers maintained similar growth performance and carcass characteristics (longissimus muscle area, dressing percentage, marbling score, hot carcass weight, and subcutaneous adipose depth) when fed up to 20% de-fatted algal biomass on a dry matter basis as a protein replacement, in comparison with wethers (male sheep) fed a control diet. In a study that examined effects of supplementing dietary dry matter with de-fatted Lithothamnium calcareum meal in Holstein cows, up to 1% algal meal in the diet mediated venous acid–base
balance after acidosis induction, but did not improve the tract digestibility or growth performance of the cows.