Effects of Phytase Enzyme Supplementation to Hazelnut Meal Based Diets on Growth Performance and Nutrient Digestibility of Siberian sturgeon (Acipenser baerii Brand, 1869)

• Published in: Tarım Bilimleri Dergisi
• Main Authors: Karabuluk, Huriye Arıman, Kurtoğlu, İlker Zeki, Köse, Özay
• Other Authors: Ziraat Fakültesi
• Format: Article in Journal/Newspaper
• Language: English
• Published: Ankara Üniversitesi 2021
• Subjects: Phytase; Plant protein; Sturgeon; Acipenser baerii; Siberian sturgeon
• Online Access: https://hdl.handle.net/20.500.12575/75124; https://doi.org/10.15832/ankutbd.663532

This research was carried out to determine that the effects of diets containing 30% hazelnut meal and different proportions of phytase enzymes on the growth performance of Siberian sturgeon (Acipenser baerii) (initial mean weight, 960.23 ± 0.55 g). The trial diets consisted of feeds supplemented with 0.25 g kg-1 (G2), 0.50 g kg-1 (G3), and 1.00 g kg-1 (G4) phytase enzyme, and with no enzyme added to the control group (G1), respectively. Experiment groups were performed in 3 replicates and trials were carried out for 90 days. As a result, adding phytase enzyme to feeds contain 30% hazelnut meal was found to have a positive effect on the weight gain (WG, g), the protein efficiency ratio (PER), feed conversion ratio (FCR), and specific growth rate (SGR, %). Growth performance was found to be more successful in all groups fed feeds supplemented with phytase enzyme compared to the G1 group (P<0.05). The G4 was the best group than the others statistically (P<0.05). In terms of the digestibility effect of enzyme added groups, the highest total digestion rate (77.14 ± 0.07%) was obtained in the G4 enzyme group and the lowest total digestibility (74.32 ± 0.02%) was estimated in the G1.