Effects of temperature, dissolved oxygen, and their interaction on the growth performance and condition of rainbow trout (Oncorhynchus mykiss)

Jiang, Xuyang; Dong, Shuanglin; Liu, Rongxin; Huang, Ming; Dong, Kang; Jin, G.; Gao, Qinfeng; Zhou, Ye

doi:10.1016/j.jtherbio.2021.102928

“…for Rainbow trout(25 ºC -26 ºC)., according to some authors(Cherry et al, 1977;Hokanson et al, 1977). Also, the same conclusions were reached byJiang et al (2021), that increasing the temperature from 17 °C to 21 °C reduces the amount of feed consumed…”

supporting

confidence: 68%

Analysis of production and economics of Rainbow trout farming on two cage farms in Serbia and Bosnia and Herzegovina

Čanak¹,

Savić²,

Pavličević³

et al. 2022

Ekonomika poljoprivrede

0

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The subject of this paper is the analysis of conditions, production and economic results of Rainbow trout production on two cage farms in Serbia and Bosnia and Herzegovina. An analytical calculation of total costs was used to compare the economic results of trout farming. The aim is to compare the achieved production and economic results of Rainbow trout farming in cage farms in Serbia and Bosnia and Herzegovina, and to analyze the influencing factors. The analysis showed minor differences in the natural conditions, production results, and economic results. Both analyzed farms are characterized by strong fluctuations of water temperature during the year. Such natural conditions affect negatively both the production and the economic results of farming. The analysis showed that the production is economically viable on both farms if the value of production is calculated together with subsidies, ie premiums. Without subsidies, the fish farm in BiH is operating at a loss.

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“…Moreover, SOD mRNA expression [ 46 ] and brain, gill, liver, and/or muscle SOD and CAT activity levels [ 12 ] were higher in fish fed with quercetin diets. SOD, CAT, MDA, and GPx parameters play a significant role in antioxidant response in different stress conditions like pesticides [ 47 ], metals [ 48 ], high temperature [ 49 , 50 ], hypoxia [ 50 ], and cold temperature [ 51 ]. However, no study is available on the effects of quercetin on antioxidant capacity in fish under high-temperature stress conditions.…”

Section: Discussionmentioning

confidence: 99%

Quercetin Application for Common Carp (Cyprinus carpio): I. Effects on Growth Performance, Humoral Immunity, Antioxidant Status, Immune-Related Genes, and Resistance against Heat Stress

Armobin

¹

,

Ahmadifar

²

,

Adineh

³

et al. 2023

Aquaculture Nutrition

15

0

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This study was done to evaluate the effect of different quercetin levels on growth performance, immune responses, antioxidant status, serum biochemical factors, and high-temperature stress responses in common carp (Cyprinus carpio). A total number of 216 common carp with an average weight of 27.21 ± 53 g were divided into 12 tanks ( four treatments × three replications ) and fed 0 mg/kg quercetin (T0), 200 mg/kg quercetin (T1), 400 mg/kg quercetin (T2), and 600 mg/kg quercetin (T3) for 60 days. There were significant differences in growth performance, and the highest final body weight (FBW), weight gain (WG), specific growth rate (SGR), and feed intake (FI) were observed in T2 and T3 ( P < 0.05 ). Different quercetin levels significantly increased complement pathway activity (ACH50) and lysozyme activity both before and after heat stress ( P < 0.05 ). Catalase (CAT), glutathione peroxidase (GPx), and malondialdehyde (MDA) were significantly increased in fish exposed to heat stress, but fish fed with a supplemented diet with quercetin showed the lowest levels both before and after heat stress ( P < 0.05 ). Superoxide dismutase (SOD) levels were significantly enhanced in fish fed diets supplemented with quercetin in both phases ( P < 0.05 ). Different quercetin levels led to a significant decrease in alanine aminotransferase (ALT) and aspartate aminotransferase (AST) before and after the challenging test ( P < 0.05 ). Glucose and cortisol levels were significantly higher in the control group compared to the other treatments in both phases ( P < 0.05 ). The expression of glutathione peroxidase (GPx) and lysozyme was markedly upregulated in fish fed with quercetin-supplemented diets ( P < 0.05 ). No marked effects were observed for growth hormone (GR) and interleukin-8 (IL8) ( P > 0.05 ). In conclusion, dietary quercetin supplementations (400-600 mg/kg quercetin) improved growth performance, immunity, and antioxidant status and increased tolerance to heat stress.

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“…Digestive enzymes are secreted by digestive glands and involved in digestion for hydrocarbons, lipids, and cellulose into subunits which animals can absorb and use for energy (Trestrail et al, 2021). Studies report that digestive enzyme activities in mussels are signi cantly higher under proper conditions, like DO, diets, and temperatures (Bowyer et al, 2012;Jiang et al, 2021), demonstrating a positive effect on the digestive ability of aquatic organisms. In our study, digestive enzyme activities of H. cumingii were signi cantly decreased in 13℃ and 33℃ treatments, which suggested that low or high temperatures reduced the digestive e ciency of mussels.…”

Section: Discussionmentioning

confidence: 99%

Enzyme activities and gene expression in digestion and metabolism of Hyriopsis cumingii under different temperature and diet ration

Sun

¹

,

Liu

²

,

Li

³

et al. 2022

Preprint

0

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The traditional culture method of Hyriopsis cumingii is in urgent need of transformation, industrial aquaculture is a sustainable cultivation mode, and the control of environmental conditions and food is the basis and key. To evaluate combined effects of rations (high-ration, medium-ration, and low-ration) and temperatures (13 ± 0.2℃, 23 ± 0.2℃ and 33 ± 0.2℃) on digestion and metabolism of H. cumingii, a 3 × 3 factor comprehensive test was established. Levels of digestive enzymes like amylase (AMS), lipase (LPS), cellulase (CL), metabolic enzymes like glutamic pyruvate transaminase (GPT), glutamic oxaloacetate transaminase (GOT), pyruvate kinase (PK), hexokinase (HK), and metabolism-related genes like carnitine palmitoyltransferase-1 (CPT1), low-density lipoprotein receptor (LDLR) of mussels were analyzed during 21 days. Results showed levels of digestive and metabolic indicators remained stable in the medium-ration × 23℃ treatment, and were significantly (P < 0.05) higher than others on day 21. When exposed to low-ration, high-ration, 13℃ or 33℃, these biochemical indicators rose briefly and then significantly (P < 0.05) declined. Results suggested the medium-ration and 23℃ were the best diet quantity and temperature for H. cumingii. Short-term thermal, cold, semi-starving, and overfeeding treatments induced metabolic levels of mussels to meet the energy demand of anti-oxidative stress. However, long-term stress resulted in liver injury of H. cumingii, reduced the digestive and metabolic efficiency of the mussel, and affected its growth performance and health. This study has practical significance in exploring culture environment and feeding conditions, controlling breeding cost, and increasing the growth and yield in industrial aquaculture.

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Effects of temperature, dissolved oxygen, and their interaction on the growth performance and condition of rainbow trout (Oncorhynchus mykiss)

Cited by 38 publications

References 36 publications

Analysis of production and economics of Rainbow trout farming on two cage farms in Serbia and Bosnia and Herzegovina

Analysis of production and economics of Rainbow trout farming on two cage farms in Serbia and Bosnia and Herzegovina

Quercetin Application for Common Carp (Cyprinus carpio): I. Effects on Growth Performance, Humoral Immunity, Antioxidant Status, Immune-Related Genes, and Resistance against Heat Stress

Enzyme activities and gene expression in digestion and metabolism of Hyriopsis cumingii under different temperature and diet ration

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