Dietary thiamin requirement of fingerling<i>Channa punctatus</i>(Bloch) based on growth, protein gain, liver thiamin storage, RNA/DNA ratio and biochemical composition

Zehra, Saman; Khan, Mukhtar A.

doi:10.1111/anu.12638

Cited by 20 publications

(3 citation statements)

References 35 publications

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“…Intensive culture of this species is limited due to the non‐availability of nutritionally adequate commercial feeds. Though several contributions exist on protein (Jindal, Yadava, Jain, & Gupta, ; Zehra & Khan, ), vitamin (Abdel‐Hameid, Khan, & Abidi, ; Zehra & Khan, , , , , ) and mineral (Abdel‐Hameid, Zehra, & Khan, ), requirements of C. punctatus , there is no publication exists on dietary isoleucine needs of fingerling C. punctatus . Hence, this study was conducted to evaluate the requirement and effects of isoleucine concentrations on growth, carcass composition, haematological and antioxidant enzyme status in C. punctatus .…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary isoleucine level on growth, protein retention efficiency, haematological parameter, lysozyme activity and serum antioxidant status of fingerlingChanna punctatus(Bloch)

Sharf

Khan

2020

Aquacult Nutr

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Isoleucine requirement of fingerling Channa punctatus (6.74 ± 0.09 g) was estimated by feeding seven trial diets (450 g/kg CP, 14.73 kJ/g DE) containing 3.8, 7.5, 11.3, 15.1, 19.3, 23.2 and 27.4 g/kg of isoleucine for 12 weeks. Growth and haematological parameters increased with the increasing concentrations of dietary isoleucine up to 16 g/kg. Carcass protein and fat increased significantly with the increasing concentrations of dietary isoleucine up to 16 g/kg and then stabilized. Moisture content showed reverse trend to that of carcass fat. Hepatosomatic index was found to be highest at 4 g/kg of dietary isoleucine. Viscerosomatic index and condition factor increased significantly with increasing levels of isoleucine up to 16 g/kg dry diet. Serum protein, lysozyme and superoxide dismutase activities were also found to increase significantly up to 16 g/kg dry diet. Significant reduction in alanine aminotransferase and aspartate aminotransferase activities was observed by increasing concentrations of dietary isoleucine up to 16 g/kg. Based on quadratic regression analysis of absolute weight gain, feed conversion ratio, protein retention and isoleucine retention efficiencies against varying concentrations of isoleucine, the optimum isoleucine requirement ranging between 17.95 and 18.39 g/kg dry diet, corresponding to 39.88–40.86 g/kg dietary protein, is recommended for maximizing growth of C. punctatus.

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Section: Introductionmentioning

confidence: 99%

Effect of dietary isoleucine level on growth, protein retention efficiency, haematological parameter, lysozyme activity and serum antioxidant status of fingerlingChanna punctatus(Bloch)

Sharf

Khan

2020

Aquacult Nutr

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“…Huang et al (2015) observed maximum weight gain at a thiamine level of 44.66 mg/kg, where the carbohydrate content was 35.6% in diets for L. vannamei, which is higher than in the current study. It was found that when dietary thiamine levels are inadequate, carbohydraterich diets deplete the body's reserves more rapidly than diets rich in fats and proteins (Zehra and Khan 2018).…”

Section: Discussionmentioning

confidence: 99%

Dietary thiamine requirement of Pacific white shrimp, Litopenaeus vannamei

Wijemanna,

Lee

2023

Preprint

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This study investigated the dietary thiamine (vitamin B1) requirement of Pacific white shrimp (Litopenaeus vannamei) for optimal growth performance, feed utilization, and innate immunity. Six test diets were formulated to contain 3.32, 20.8, 38.7, 60.2, 80.7, and 108 mg/kg of graded thiamine levels (designated as T0, T20, T40, T60, T80, and T100, respectively). A total of 360 shrimp (6.03 ± 0.03 g) were randomly assigned into 24 acryl tanks (240 L) to be quadruplicated per treatment, and feeding was done in six equal portions daily for 58 days. The T20 diet fed group exhibited significantly higher growth performance compared to shrimp fed T0 and T100 diets. Feed conversion ratio and protein efficiency ratio were not significantly different among experimental groups. A significantly higher phenoloxidase activity was exhibited in T20 dietary group than T0 and T100 groups. Lysozyme activity was significantly enhanced in T20, T40, T60, and T80 groups than in T0 group and antiprotease activity was not significantly affected. Antioxidant parameters: superoxide dismutase activity and glutathione peroxidase activities were significantly elevated in T20 dietary treatment group. Significantly upregulated proPO gene expression was observed in T20 and T40 dietary treatment groups, although penaidine 3a and insulin-like growth factor-1 relative gene expressions were not significantly different. Glucose, total cholesterol, triglyceride, and total protein levels in hemolymph were not significantly different. Intestinal histology observations did not show significant differences in villi heights. A piecewise regression of weight gain percentage (WG%) estimates the optimal dietary thiamine requirement of L. vannamei at 19.7 mg/kg.

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“…RNA directly participates in protein synthesis, and the metabolic rate of the body is positively correlated with the efficiency of RNA synthesis (Kumar et al, 2018). Conversely, the DNA content of genetic information carrier molecules remains stable (Zehra and Khan, 2017). Consequently, the RNA/DNA ratio, a physiological indicator of the body's protein synthesis capacity, can accurately reflect cell metabolism (Sterzelecki et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Blue and Red Light Color Combinations Can Enhance Certain Aspects of Digestive and Anabolic Performance in Juvenile Steelhead Trout Oncorhynchus mykiss

et al. 2022

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The light spectrum varies with the altitude of the sun and shows different light colors in clear water. In this study, we aimed to investigate the response of juvenile steelhead trout Oncorhynchus mykiss (34.67 ± 2.69 g initial weight) under different light color conditions. The effects of different blue and red light combinations on plasma biochemical parameters, digestive enzyme activity, and RNA/DNA ratio were assessed in trout over 16 weeks. Six treatments were randomly assigned to 24 tanks with four replicates per treatment: a constant light intensity of 150 lx: 12 h white light then 12 h dark (12W); 12 h blue light then 12 h dark (12B); 12 h red light then 12 h dark (12R); 1.5 h blue light, 9 h red light, 1.5 h blue light, then 12 h dark (3B9R); 3 h blue light, 6 h red light, 3 h blue light, then 12 h dark (6B6R); and 12 h of both blue and red light then 12 h dark (T12BR). Fish exposed to the 3B9R light environment showed significantly increased plasma levels of total protein (TP), enhanced activities of midgut lipase, trypsin, and gastric lipase; and increased RNA content in the liver and muscle tissue to promote protein synthesis efficiency, thereby improving digestive and anabolic performance compared to fish in the other treatments. This indicates that steelhead trout have adapted well to such variable light conditions during long-term evolution. In contrast, trout exposed to the 6B6R light environment showed significant reductions in plasma glucose, TP, and triglyceride levels, decreased activity of gastrointestinal digestive enzymes, and reduced protein synthesis capacity in the muscle and liver, resulting in weakened digestive and anabolic performance. Furthermore, despite the high RNA content and RNA/DNA ratio in fish exposed to a 12R light environment, relatively high plasma cholesterol and triglycerides levels were observed, which might indicate oxidative stress. Therefore, this light is not considered suitable for long-term cultivation. In conclusion, the 3B9R treatment was the optimal light condition tested and can be used to improve the digestive and anabolic performance of steelhead trout.

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Dietary thiamin requirement of fingerlingChanna punctatus(Bloch) based on growth, protein gain, liver thiamin storage, RNA/DNA ratio and biochemical composition

Cited by 20 publications

References 35 publications

Effect of dietary isoleucine level on growth, protein retention efficiency, haematological parameter, lysozyme activity and serum antioxidant status of fingerlingChanna punctatus(Bloch)

Effect of dietary isoleucine level on growth, protein retention efficiency, haematological parameter, lysozyme activity and serum antioxidant status of fingerlingChanna punctatus(Bloch)

Dietary thiamine requirement of Pacific white shrimp, Litopenaeus vannamei

Blue and Red Light Color Combinations Can Enhance Certain Aspects of Digestive and Anabolic Performance in Juvenile Steelhead Trout Oncorhynchus mykiss

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