Minimal water volume for intensively producing male Siamese fighting fish (Betta splendens Regan, 1910)

Saekhow, Suktianchai; Thongprajukaew, Karun; Phromkunthong, Wutiporn; Sae-khoo, Harit

doi:10.1007/s10695-018-0495-z

Cited by 16 publications

(9 citation statements)

References 43 publications

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“…Protein synthesis capacity and protein turnover rate were observed via RNA concentration and RNA/protein ratio. Low flesh RNA and RNA/protein ratio indicate a faster growth rate of the fish on comparing to a slower growth rate group [62]. However, in the current study, no significant effect on RNA, protein and RNA/ protein ratio in muscle were observed.…”

Section: Discussioncontrasting

confidence: 78%

Effects of Dietary Zinc Amino Acid Complex and Zinc Sulfate on Growth Performance, Digestive Enzyme Activity and Immune Response in Asian Seabass (Lates calcarifer)

Sansuwan¹,

Jintasataporn²,

Chumkam³

2019

J Aquac Res Development

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Zinc is an essential trace mineral to fish and vital to various biological processes and function. The artificial diets offered to intensively cultivated fish must possess the zinc content required by the animal metabolism for health maintenance and high weight gain. However, essential elements must also be in an available form to be utilized by the organism. Thus, this study was designed to evaluate the effects of different zinc forms, including organic zinc (zinc amino acid complex) and inorganic zinc (zinc sulfate) as feed additives in diets on in vitro protein digestibility, growth performance, feed utilization, digestive enzyme activity, immune response and muscle quality of Asian seabass (Lates calcarifer). The study was assigned in CRD with 3 treatments and 3 replicates. Three groups of fish with mean weight 22.54 ± 0.80 g, were given a basal diet either unsupplemented (control) or supplemented with 50 mg Zn kg −1 , as zinc sulfate (ZnSO 4) or zinc amino acid complex (ZnAA). The fish were fed experimental diets 3.0% of their body weight per day, twice daily at 08.00 and 16.00 h, for 10 weeks. At the end of the experiment, no significant differences were observed on protein digestibility, survival, growth performance and feed utilization across the three dietary treatments (P>0.05). Fish fed ZnSO 4 diets exhibited a significant increase in the specific activities of total protease, pepsin and trypsin compared with ZnAA and the control (P<0.05). Hematocrit, lysozyme and superoxide dismutase activities of fish fed ZnAA diets were significantly higher compared with all other groups (P<0.05). However, no significant differences were observed for muscle quality and whole body composition (P>0.05). The results of the present work allowed us to conclude that there was no difference in the growth between the two zinc sources but ZnAA supplementation exhibited a higher immunity response in Asian seabass.

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Section: Discussioncontrasting

confidence: 78%

Effects of Dietary Zinc Amino Acid Complex and Zinc Sulfate on Growth Performance, Digestive Enzyme Activity and Immune Response in Asian Seabass (Lates calcarifer)

Sansuwan¹,

Jintasataporn²,

Chumkam³

2019

J Aquac Res Development

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“…No differences in growth performance and feed utilization were observed across the three dietary treatments, suggesting that all the fish have high ability to utilize the different preparations of mosquito larvae. The growth and feed utilization from the current study were relatively superior but within the ranges from aquaculture of this species (Mandal et al, ; Saekhow, Thongprajukaew, Phromkunthong, & Sae‐khoo, ; Sipaúba‐Tavares et al, ). Chai, Ji, Han, Dai, and Wang () reported increased VSI in fish fed with diets having optimized protein and lipid contents, relative to other less suitable diet formulations.…”

Section: Discussionmentioning

confidence: 48%

Freeze‐dried forms of mosquito larvae for feeding of Siamese fighting fish (Betta splendensRegan, 1910)

et al. 2018

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Live diets are preferably used for rearing Siamese fighting fish (Betta splendens Regan, 1910) since they provide superior growth over the dry feed. In the current study, three different preparations of mosquito larvae were prepared (frozen at −20°C, F-20; freeze-dried and kept at 4°C, FD4; freeze-dried and kept at ambient temperature, FDAT) and were individually fed to 1-month-old red male fighting fish (1.18 ± 0.01 g initial body weight) over 6 weeks duration. At the end of experiment, there were no significant differences in growth performance and feed utilization across three dietary treatments (p ˃ 0.05). Specific activity of lipase was significantly lower in fish fed FD4 and FDAT than with the F-20 diet, while no differences in other enzymes were observed. The fish fed with FDAT diet significantly increased in viscerosomatic index relative to F-20 and FD4 treatments. Significant improvements in skin redness and flesh quality (RNA and RNA/protein ratio) were observed in the fish fed with FDAT diet relative to the other treatments. This preferred FDAT treatment also maintained the carcass composition. Analysis of digestive enzymes in FDAT mosquito larvae demonstrated the presence of protein-, carbohydrate-, and lipid-digesting enzymes after 1 month of storage. The findings from our experiments indicate that the freeze-dried form (FDAT) of mosquito larvae is suitable for rearing Siamese fighting fish. However, effective preparation protocol and appropriate storage times should be further studied. K E Y W O R D S colour, digestive enzyme, flesh quality, freeze, freeze-dry, live diet

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“…Significantly low flesh RNA and RNA/protein ratio indicates faster growing phase in a number of fish species (Saekhow, Thongprajukaew, Phromkunthong, & Sae‐khoo, ; Sunde et al, ; Thongprajukaew et al, ). Decreased RNA concentration (protein synthesis capacity) and RNA/protein ratio (protein turnover rate) while flesh protein concentration was improved, therefore suggests continuous growth of the fish reared against a black background, followed by the green and white respectively.…”

Section: Discussionmentioning

confidence: 99%

Optimal background colour for rearing Asian seabass (Lates calcarifer)

Santisathitkul¹,

Thongprajukaew

Saekhow

et al. 2020

Aquac Res

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Background colour influences the growth performance and feed utilization of various fish species. In the current study, the effects of different aquarium backgrounds (transparent, white, black, red, green and blue) on growth performance, feed utilization, digestive enzyme activities, flesh quality, carcass composition and haematological parameters were investigated in Asian seabass (Lates calcarifer). The fish (16.17 ± 0.02 g initial body weight) were distributed into eighteen glass aquaria (6 treatments × 3 replications) with the various background colours and reared for 10 weeks. At the end of the experiment, positive growth performance and feed utilization were observed in fish reared against transparent, white, black or green backgrounds, while negative effects were noted for fish reared on the remaining treatments (p < .05). Modulation of the main digestive enzymes was observed across the six treatments, indicating different strategies for utilizing nutrients by the fish. The activity ratio of trypsin to chymotrypsin was highest in the fish reared against a black background, followed by a white background. Flesh quality, in terms of protein synthesis capacity and protein turnover rate, indicated a significant improvement in the fish reared against white, black and green backgrounds, while the contents of myosin and actin were similar across the six colour treatments. Carcass composition and haematological parameters showed no negative effects in either of the preferred treatments. These findings indicate that the most suitable background colours for rearing Asian seabass are black, followed by white and green, while transparent, red or blue backgrounds are unsuitable.

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Minimal water volume for intensively producing male Siamese fighting fish (Betta splendens Regan, 1910)

Cited by 16 publications

References 43 publications

Effects of Dietary Zinc Amino Acid Complex and Zinc Sulfate on Growth Performance, Digestive Enzyme Activity and Immune Response in Asian Seabass (Lates calcarifer)

Effects of Dietary Zinc Amino Acid Complex and Zinc Sulfate on Growth Performance, Digestive Enzyme Activity and Immune Response in Asian Seabass (Lates calcarifer)

Freeze‐dried forms of mosquito larvae for feeding of Siamese fighting fish (Betta splendensRegan, 1910)

Optimal background colour for rearing Asian seabass (Lates calcarifer)

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