Effect of dietary vitamin C on non-specific immunity and mRNA expression of three heat shock proteins (HSPs) in juvenile Megalobrama amblycephala under pH stress

Wan, Jinjuan; Ge, Xianping; Liu, Bo; Xie, Jun; Cui, Suli; Zhou, Ming; Xia, Silei; Chen, Ruli

doi:10.1016/j.aquaculture.2014.08.043

Cited by 65 publications

(53 citation statements)

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“…The nutrients required for maximum growth under laboratory conditions are known as the nutrient requirement of fish (NRC, ). Feed without vitamin C reduces growth of the cultured animals because it is an essential nutrient and must be exogenously supplied (Dabrowski, ; NRC, ; Wan et al., ). Similarly, in the present study, the inclusion of various levels of vitamin C in the diets significantly affected the growth performance of the fishes.…”

Section: Discussionmentioning

confidence: 99%

Dietary ascorbic acid requirement for growth of striped catfish,Pangasianodon hypophthalmus(Sauvage, 1878) juveniles

et al. 2017

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A sixty-day feeding trial was conducted to determine the ascorbic acid (AA) requirement for growth of striped catfish, Pangasianodon hypophthalmus juveniles. Seven isonitrogenous and iso-energetic (370 g protein per kg and 19.6 MJ/kg) purified diets were prepared with different levels of ascorbic acid such as control (0), T 1 (17.5), T 2 (35), T 3 (70), T 4 (175), T 5 (350) and T 6 (700) mg ascorbic acid (L-ascorbyl-2-polyphosphate) equivalent per kg diet. Fish with a mean body weight of 3.2-3.4 g were stocked (fifteen fish per tank) in triplicates following a completely randomized design. Each group was fed to satiation twice a day for 60 days. Significant differences were observed in growth, survival, body composition and metabolic enzymes activities with different dietary ascorbic acid levels. Maximum weight gain, specific growth rate (SGR) and protein efficiency ratio (PER) were found in fishes fed with 35 mg AA per kg diet, supported by best feed conversion. Fish fed a diet containing vitamin C had the highest activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP) compared to those fed with vitamin C-depleted diets.In this study, based on using broken-line regression analysis, the dietary vitamin C requirement for growth of P. hypophthalmus juveniles was estimated to be in the range of 46-76 mg AA per kg, depending on the criterion used, growth and liver storage.Our results will be helpful for the formulation of cost-effective ascorbic acid incorporated diets for striped catfish, P. hypophthalmus. K E Y W O R D Sascorbic acid, growth, L-ascorbyl-2-polyphosphate, Pangasianodon hypophthalmus, vitamin C requirement | INTRODUCTIONVitamin C (ascorbic acid) is considered as one of the essential nutrients required for growth and immunity in fish (Asaikkutti, Bhavan, Vimala, Karthik, & Cheruparambath, 2016;Dabrowski, 2000;Khan, Zuberi, & Ullah, 2015;Lim & Lovell, 1978; NRC, 2011;Pimpimol, Phoonsamran, & Chitmanat, 2012;Xu et al., 2016). Ascorbic acid (AA) has an extensive role in the enhancement of growth, collagen synthesis, iron metabolism, haematology, reproduction, stress physiology, wound healing and immune response in fish (Albrektsen, Lie, & Sandnes, 1988;Anbarasu & Chandran, 2001;Halver, Smith, Tolbert, & Baker, 1975;Roberts, Davies, & Pulsford, 1995). Many of the farmed fishes, such as ictalurids, cichlids and cyprinids, cannot synthesize vitamin C de novo because they do not contain the enzyme, L-gulono-1,4-lactone oxidase (Chatterjee, 1973;Dabrowski, 1994;Moreau, Dabrowski, & Sato, 1999;Xie, Niu, Zhang, & Bao, 2006;Yamamoto, Sato, & Ikeda, 1978). Ascorbic acid is soluble in water, and thus, leaching of this vitamin from feeds can be a serious issue (Abdelghany, 1996; Hilton, Cho, Brown, & Slinger, 1979; Hilton, & Slinger, 1977;Soliman, Jauncey, & Roberts, 1986). Wilson and Moreau (1996) reported that AA is not stable in the native form as 50 mg/kg of the supplemental AA will be destroyed during the feed manufacturing process. Therefore, accur...

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Section: Discussionmentioning

confidence: 99%

Dietary ascorbic acid requirement for growth of striped catfish,Pangasianodon hypophthalmus(Sauvage, 1878) juveniles

et al. 2017

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“…In fish fed ascorbic acid, there was an increased expression of hepatic HSP60 and HSP70 which was associated with increased tolerance against an induced pH environmental stress. 47 In human studies, administration of ascorbic acid increases HSP70 levels in muscle cells. However, it did not significantly alter the HSP70 content in lymphocytes.…”

Section: 36mentioning

confidence: 99%

Heat acclimation: Gold mines and genes

Schneider

2016

Temperature

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The underground gold mines of South Africa offer a unique historical setting to study heat acclimation. The early heat stress research was conducted and described by a young medical officer, Dr. Aldo Dreosti. He developed practical and specific protocols to first assess the heat tolerance of thousands of new mining recruits, and then used the screening results as the basis for assigning a heat acclimation protocol. The mines provide an interesting paradigm where the prevention of heat stroke evolved from genetic selection, where only Black natives were recruited due to a false assumption of their intrinsic tolerance to heat, to our current appreciation of the epigenetic and other molecular adaptations that occur with exposure to heat.

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“…Pacific white shrimp ( Litopenaeus vannamei ), with high economic value and conspicuous characteristics (rapid growth and euryhaline peculiarity), has become one of the most popular shrimp species cultured worldwide during the recent years, especially in China (Chiu, Guu, Liu, Pan, & Cheng, ; Zhou, Wu, Liang, & Gu, ). However, the deterioration of aquatic environment, caused by infaust factors, such as climate changes, environmental pollutants, disease, and over‐stocking, has arisen along with the rapid development of fishery worldwide (Le Moullac & Haffner, ; Qian et al., ; Wan et al., ). Although shrimp are well adapted to cope with environmental changes, such as salinity, temperature, dissolved oxygen and pH changes (Brito, Chimal, & Rosas, ; Castille & Lawrence, ; Chen & Lai, ; Rosas et al.…”

Section: Introductionmentioning

confidence: 99%

Growth performance, haematological parameters, antioxidant status and salinity stress tolerance of juvenile Pacific white shrimp (Litopenaeus vannamei ) fed different levels of dietary myo -inositol

et al. 2018

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A 10‐week growth trial was run to evaluate effects of myo‐inositol (MI) on growth performance, haematological parameters, antioxidative capacity and salinity stress tolerance of Litopenaeus vannamei. Six practical diets supplemented with graded levels of MI (designated as MI0, MI600, MI1200, MI2400, MI 3600 and MI4800 for 448.8, 974.2, 1568.0, 2810.6, 3835.5 and 4893.6 mg/kg diet, respectively) were fed to six replicate groups of L. vannamei (mean initial body weight 0.63 ± 0.00 g). The results showed that significant increment of growth performance was observed in shrimp fed MI600 diet than those fed MI1200 diet. Lipid concentration in whole body of the shrimp fed MI600 diet was significantly increased. Shrimp fed MI0 diet had lower total protein (TP) as compared to shrimp fed the MI‐supplemented diets (except MI4800 diet). In general, lower activities of antioxidant enzymes and higher malondialdehyde (MDA) content in haemolymph and hepatopancreas were recorded in shrimp fed MI0 diet, compared to those fed the MI‐supplemented diets. Reduced survival after 7‐h salinity stress was present in shrimp fed MI0 diet as compared to those fed MI4800 diet. Dietary MI requirement for glutathione peroxidase activity of L. vannamei was 2705 mg/kg diet.

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Effect of dietary vitamin C on non-specific immunity and mRNA expression of three heat shock proteins (HSPs) in juvenile Megalobrama amblycephala under pH stress

Cited by 65 publications

References 51 publications

Dietary ascorbic acid requirement for growth of striped catfish,Pangasianodon hypophthalmus(Sauvage, 1878) juveniles

Dietary ascorbic acid requirement for growth of striped catfish,Pangasianodon hypophthalmus(Sauvage, 1878) juveniles

Heat acclimation: Gold mines and genes

Growth performance, haematological parameters, antioxidant status and salinity stress tolerance of juvenile Pacific white shrimp (Litopenaeus vannamei ) fed different levels of dietary myo -inositol

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