the present study was conducted to investigate the clinical effects and possible side effects of yarrow extract ( achillea millefolium l.) as feed additive on biochemical blood parameters and growth performance of rainbow trout ( oncorhynchus mykiss ). fishes were treated with 0 (control), 0.1, 0.5 and 1% of yarrow extract for 30 days. plasma alanine aminotransferase (alt), aspartate aminotrans...

It has been established that the blood test is one of quick methods assessing physiological state body under action exogenous stimuli, what important when testing new feed additives in pig feeding. Studies morphological parameters showed feeding young pigs with starter additive “Activo” helped to increase red cells and hemoglobin level. Thus, content second group increased by 7.5 % compared con...