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Optimum feeding frequency of juvenile largemouth bass (Micropterus salmoides) reared in in-pond raceway recirculating culture system
- Source :
- Fish Physiology and Biochemistry. 46:2197-2212
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- This study was conducted to determine the effects of feeding frequency on the growth, serum biochemical parameters, antioxidant status and hepatic growth hormone (GH), insulin-like growth factor I (IGF-I), lipoprotein lipase (LPL) and hepatic lipase (HL) gene expression levels of juvenile largemouth bass (Micropterus salmoides) reared in an in-pond raceway recirculating culture system (IPRS). Fish (initial body weight 5.0 ± 0.4 g) were hand-fed with a commercial diet under one of three different feeding frequency treatments (2, 3 or 4 meals/day) for 120 days. The results indicated that no significant differences were observed in the final body weight, weight gain and specific growth rate of fish fed different feeding frequencies on 30 days and 60 days (P > 0.05). Fish fed 2 times/day had higher growth than that fed 4 times/day on 90 days but had higher growth than those fed 3 and 4 times/day on 120 days. No significant differences were found in serum alanine aminotransferase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP) activities, total protein (TP), lysozyme and triglyceride (TG) content, hepatic total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-PX) activities and malondialdehyde (MDA) content among fish fed different feeding frequency (P > 0.05). Serum glucose (Glu) content and catalase (CAT) activity decreased, while total cholesterol (TC) content increased with increasing feeding frequency. Fish fed 2 times/day had higher hepatic total superoxide dismutase (T-SOD) than that fed 4 times/day on 60 days, 90 days and 120 days (P
- Subjects :
- Blood Glucose
Fish Proteins
food.ingredient
Physiology
Aspartate transaminase
Micropterus
Aquaculture
Aquatic Science
Biology
Biochemistry
03 medical and health sciences
Bass (fish)
chemistry.chemical_compound
food
Animal science
medicine
Animals
Insulin-Like Growth Factor I
030304 developmental biology
chemistry.chemical_classification
0303 health sciences
Lipoprotein lipase
Triglyceride
Superoxide Dismutase
Glutathione peroxidase
Lipase
04 agricultural and veterinary sciences
General Medicine
Catalase
biology.organism_classification
Animal Feed
Intestines
Lipoprotein Lipase
Cholesterol
Liver
chemistry
040102 fisheries
biology.protein
0401 agriculture, forestry, and fisheries
Bass
Hepatic lipase
medicine.symptom
Weight gain
Subjects
Details
- ISSN :
- 15735168 and 09201742
- Volume :
- 46
- Database :
- OpenAIRE
- Journal :
- Fish Physiology and Biochemistry
- Accession number :
- edsair.doi.dedup.....b2b86cc5e6ac0f1ab19aee189ad49a1a