Abstract
This study aimed to evaluate the growth performance and fin regeneration rates of zebrafish fed with diets containing levels of vitamin C (Vit C). A basal practical diet was formulated to test six levels of Vit C supplementation (0, 75, 150, 300, 600 and 1,200 mg kg−1). A total of 504 juvenile zebrafish were distributed into thirty-six 8-L aquaria, constituting an experimental design with six treatments and six replicates. After 60 days of feeding, growth performance was evaluated. To analyse the regeneration rates of the caudal fin, 18 fish of each treatment were anesthetized and had part of their fins amputated. To determine the regenerated portion on Days 5, 10 and 15 postamputation, six fish of each treatment were subjected to image analysis. The average weight gain, specific growth rate, feed conversion ratio and final length were positively affected (p < .05) by Vit C supplementation. The diets with higher dietary concentrations of Vit C presented the best results regarding tissue regeneration. Based on the broken-line regression analysis, it is concluded that the Vit C nutritional requirement for the maximum growth and tissue regeneration of zebrafish juveniles fed with practical diets for 60 days were 188.7 and 897.4 mg kg−1 diet, respectively.
Aquaculture Nutrition, Volume 27, Issue S1, Page 115-123, December 2021. Leer más
Related posts:
Fermented soybean meal can partially replace fishmeal and improve the intestinal condition of goldfish juveniles reared in a biofloc system
Effects of Apple Polyphenols and Taurine on Growth Performance, Tissue Morphology, and Lipid and Glucose Metabolism in Rice Field Eel (Monopterus albus) Fed High Oxidized Fish Oil
The Effects of Different Levels of Potassium Diformate and Calcium Diformate on Growth, Digestion Enzyme Activity, Antioxidant Capacity, Intestinal Flora, Stress Markers, and Some Serum Biochemical Analytes in Juvenile Beluga Huso huso
High Levels of Vitamin A in Plant‐Based Diets for Gilthead Seabream (Sparus aurata) Juveniles, Effects on Growth, Skeletal Anomalies, Bone Molecular Markers, and Histological Morphology
Modulation of growth, skin mucus and serum immunities, and disease resistance of Nile tilapia fed host‐associated probiotic (Lactobacillus paracasei l61‐27b)
Improvement of growth, nutrient utilization and haemato‐immunological parameters in rohu, Labeo rohita (Hamilton) using Bacillus tequilensis (KF623287) through diets or as water additive