Effects of practical dietary protein to lipid levels on growth, digestive enzyme activities and body composition of juvenile rice field eel (Monopterus albus)

Ma, Xiao; Hu, Yi; Wang, Xiaoqing; Ai, Qinghui; He, Zilong; Feng, Fu-Xian; Lu, Xiangyang

doi:10.1007/s10499-013-9703-0

Cited by 48 publications

(36 citation statements)

References 40 publications

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“…This result was similar to the protein requirement of the tropical bagrid catfish Horabagrus brachysoma (39.1%) (Giri, Sahoo, Paul, Mohanty, & Sahu, ) and Mystus nemurus (40%) (Ng, Soon, & Hashim, ), and juvenile Culter alburnus (40%) (Zhang et al, ). However, the protein requirement assessed in this study was smaller than those previously reported in M. albus juveniles, whose protein/lipid ratio were 420/55 g/kg (body weight of 37.83–39.75 g) (Chen et al, ) and 450/40 g/kg (body weight of 65.76 ± 1.07 g) (Ma et al, ) respectively. Generally, protein requirement of fish decreased with the increase of age from juveniles to adults (Wilson, ), as reported in common carp Cyprinus carpio (NRC, ), gibel carp Carassius auratus gibelio var.…”

Section: Discussioncontrasting

confidence: 70%

“…The rice field eel, Monopterus albus , which belongs to the family Synbranchidae in the order Synbranchiformes, is a hermaphroditic protogynous fish that undergoes the naturally sex reversal from a functional female to male (Hu, Guo, Gao, Tang, & Li, ). It is regarded as an economically important freshwater fish in China by its high nutritional value (Ma et al, ), whose annual output in 2017 was assessed to be 358,295 tons (CFSY, ). The wild rice field eels are nocturnal predators devouring small swampy and aquatic animals, such as loach ( Misgurnus anguillicaudatus ), earthworms ( Eisenia foetida ), shrimp ( Palaemon sinensis ) and chironomidae ( Chironomus plumosus ) larvae (Zhou, Wu, Zhu, & Yan, ).…”

Section: Introductionmentioning

confidence: 99%

“…For M. albus , some preliminary studies on the dietary protein requirements were conducted (Xu, Chen, & Ai, ). Ma et al () reported that dietary protein/lipid level of 450/40 g/kg was preferred for juvenile rice field eel at the initial body weight of 65.76 ± 1.07 g (Ma et al, ). For M. albus with the initial body weight of 37.83–39.75 g, the optimum dietary protein ratio was estimated to be 42% (Chen et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Effects of dietary protein levels on the growth, body composition, serum biochemistry and digestive enzyme activity in Chinese rice field eel ( Monopterus albus ) fingerlings

et al. 2019

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A 12-week feeding trial was conducted to determine the influence of dietary protein levels on growth performance, body composition, haematological parameters and digestive enzyme activity of Chinese rice field eel (Monopterus albus) fingerlings. Six isolipidic experimental diets (27.89%, 32.23%, 35.95%, 40.06%, 43.31% and 46.53%) were formulated to randomly assign to triplicate groups of 50 rice field eel fingerlings (5.0 ± 0.5 g) cultured in plastic cages. Results indicated that the best growth performance of fish with the highest WG (158.68 ± 31.59%) and SGR (2.28 ± 0.21%) was obtained at 40.06% group. Significant alterations were demonstrated on whole-body crude protein, crude lipid and amino acid profile by different dietary protein levels.Besides, haematological parameters including triacylglycerol, aspartate aminotransferase and alkaline phosphatase decreased with various levels by the increasing of dietary protein levels. The lowest pepsin activity was observed in 27.89% protein group, which suggested lower availability of protein as substrate for protease activity. Meanwhile, the highest amylase activity in fish of 27.89% group indicated higher carbohydrate level in this group. Based on the polynomial regression analysis of WG and SGR, the dietary protein requirement for fingerlings of Monopterus albus was estimated to be 386.4-390.8 g/kg, respectively, with the lipid level of 10.08%. K E Y W O R D S body composition, dietary protein requirement, digestive enzyme activity, growth performance, Monopterus albus, serum biochemistry | 401 YUE Et al.

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Section: Discussioncontrasting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of dietary protein levels on the growth, body composition, serum biochemistry and digestive enzyme activity in Chinese rice field eel ( Monopterus albus ) fingerlings

et al. 2019

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“…The basal practical diet was formulated (Table 1) to contain about 42.05% crude protein and 6.32% lipid, which is suitable for the growth of M. albus (Ma et al, 2014), which was considered as the position control. The basal practical diet was formulated (Table 1) to contain about 42.05% crude protein and 6.32% lipid, which is suitable for the growth of M. albus (Ma et al, 2014), which was considered as the position control.…”

Section: Experimental Dietsmentioning

confidence: 99%

Effect of dietary taurine supplementation on growth, digestive enzyme, immunity and resistant to dry stress of rice field eel (Monopterus albus) fed low fish meal diets

Yang

et al. 2018

Aquac Res

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This study was conducted to evaluate the effect of dietary taurine supplementation on growth, immunity and resistant to dry stress of rice field eel (Monopterus albus) fed low fish meal diets. Six isonitrogenous and isolipid diets (32% fish meal) supplemented with six taurine concentrations (0, 0.3, 0.6, 0.9, 1.2 and 1.5 g/kg; designated as T 0 , T 0.03 , T 0.06 , T 0.09 , T 0.12 and T 0.15 groups, respectively) were prepared.A diet including 42% fish meal (FM group) was also included as a reference. The results showed that specific growth rate (SGR) in FM group was significantly higher than that in lower fish meal treatments. SGR significantly increased and slowly decreased with the increase in taurine supplementation level. Lipase activity value in intestine of M. albus fed FM diet was maximum, and with the increase in taurine supplementation level, lipase activity significantly increased and slowly decreased. The FM group had relative higher total antioxidant capacity (T-AOC) content, catalase (CAT), total superoxide dismutase (T-SOD), and lyzozyme (LZM) activities in serum than the other groups. With the increase in dietary taurine supplementation level, the CAT, T-SOD, T-AOC and LZM activities in serum significantly increased and then decreased. In the dry stress experience, the adrenaline (AD), cortisol (COR), glucose (GLU), total cholesterol (CHOL), and malondialdehyde (MDA) concentrations, T-AOC content, CAT and T-SOD activities in serum of M. albus in the four groups first increased and reached the peak at 2 hr, and then decreased under air-exposure stress. Compared to the FM group, T 0.15 group had relative higher T-AOC content, CAT and T-SOD activities, and lower AD, COR GLU, TC and MDA concentrations. K E Y W O R D S dry stress, immunity, low fish meal, Monopterus albus, taurine wileyonlinelibrary.com/journal/are Aquaculture Research. 2018;49:2108-2118.

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“…Therefore, it is important that the fish feed contain optimum protein and lipid levels with an appropriate protein/energy (P:E) ratio. Recently, several studies have established the optimum ratio of dietary protein to lipid of some species (Liu, Mai, Liufu, & Ai, 2014;Ma et al, 2014;Wang et al, 2017).…”

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confidence: 99%

Effects of dietary protein at two lipid levels on growth, gonadal development, body composition and liver metabolic enzymes of brown trout (Salmo trutta fario) broodstock

et al. 2018

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This study was conducted to estimate the effects of dietary protein and lipid levels on the growth, body composition, gonadal development and activity of liver metabolic enzymes of the brown trout Salmo trutta fario broodstock. Ten diets were formulated containing five different protein levels (360, 390, 420, 450 and 480 g/kg) and two different lipid levels (90 and 180 g/kg). The experiment was a completely randomized 5 × 2 factorial design. The fish with an initial body weight of 462.53 ± 45.40 g were cultured in a spring water flow‐through system for 77 days. The growth performance was affected by dietary protein and lipid levels. Increase in the dietary protein and lipid resulted in increase in the body lipid and protein contents. The male gonadosomatic index decreased in the groups treated with relatively high levels of protein (390–480 g/kg). The activities of the hepatic amino acid‐catabolizing enzymes—alanine aminotransferase and aspartate aminotransferase—increased significantly with the increase in the dietary protein level. The activities of the lipogenic enzymes (fatty acid synthetase and glucose‐6‐phosphate dehydrogenase) and gluconeogenic enzyme (fructose‐1,6‐bisphosphatase) increased with the increase in the dietary protein level. Further, an increase in the activities of glycolytic enzyme in liver with an increase in the dietary lipid was observed. The variation in some intermediary metabolizing enzymes due to dietary components supports the high‐metabolic adaptability of this species to dietary protein and lipid levels. A diet with 450 g/kg protein and 90 g/kg lipid with 24.56 mg/kJ protein/energy ratio maximizes the growth, feed efficiency and gonadal development.

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Effects of practical dietary protein to lipid levels on growth, digestive enzyme activities and body composition of juvenile rice field eel (Monopterus albus)

Cited by 48 publications

References 40 publications

Effects of dietary protein levels on the growth, body composition, serum biochemistry and digestive enzyme activity in Chinese rice field eel ( Monopterus albus ) fingerlings

Effects of dietary protein levels on the growth, body composition, serum biochemistry and digestive enzyme activity in Chinese rice field eel ( Monopterus albus ) fingerlings

Effect of dietary taurine supplementation on growth, digestive enzyme, immunity and resistant to dry stress of rice field eel (Monopterus albus) fed low fish meal diets

Effects of dietary protein at two lipid levels on growth, gonadal development, body composition and liver metabolic enzymes of brown trout (Salmo trutta fario) broodstock

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