ISSUE FOCUS FEED & ADDITIVE MAGAZINE September 2024 61 creasing administration doses of Orego-Stim Forte, thus supporting the antibacterial activity of OEO and QS. A significant difference was observed between the control and Orego-Stim Forte diet at 3.5kg/t (D3), which demonstrates the efficacy of Orego-Stim Forte for in vivo scenarios. THCs tended to be higher in the groups supplemented with Orego-Stim Forte, thus indicating more efficient elimination of bacteria from the haemolymph of shrimp fed Orego-Stim Forte. Phenoloxidase, an enzyme that catalyses the shrimp's natural antioxidative system, tended to be higher in the groups previously fed Orego-Stim Forte. Additionally, this trial resulted in a return-on-investment (ROI) ratio calculated at >8:1 to a shrimp producer when using Orego-Stim Forte at 3.5kg per tonne of feed. THE GROWTH PERFORMANCE ENHANCING EFFECTS OF PHYTOGENIC FEED ADDITIVES In fish, several studies have examined the beneficial effects of supplementing OEO and QS to improve growth rate, mainly via improving the intestinal histomorphometry and increasing activities of digestive enzymes. The dietary inclusion of OEO and QS across a multitude of fish and shrimp species has demonstrated efficacy in increasing villus size and quantity, thus improving intestinal absorption surface area and nutrient utilisation. The improved intestinal histomorphometry may be attributable to antimicrobial activity of OEO and QS, causing a reduction of harmful bacteria and consequently, reducing mucosal damage. The activities of endogenous digestive enzymes are often used as a benchmark for determining the digestive capacity and nutritional status of fish. Supplementing OEO and QS in O. niloticus and C. carpio diets have successfully demonstrated a significant improvement in the stimulation of amylase, lipase, and protease activity, which resulted in improved growth indices for both species. Ballan wrasse (Labrus bergylta), as cleaner fish, are viewed as a sustainable and effective manageVisit www.anpario.com or email orego-stim@anpario.com Interested? High quality eubiotic composed of 100% natural oregano essential oil & saponins. Cost Effective, Natural Solution to Support Gut Health & Performance.
RkJQdWJsaXNoZXIy MTUxNjkxNQ==