Preliminary investigations on rabbitfish, Siganus canalicullatus, cultivation in Tanzania

Bwathondi, P.O.J.

doi:10.1016/0044-8486(82)90058-8

Cited by 10 publications

(9 citation statements)

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“…The observed rate of growth of E. suratensis compares well with other euryhaline species, such as Siganus canalicullatus (Bwathondi 1982), considered as candidates for culture in the tropics.…”

Section: Discussionmentioning

confidence: 64%

Aspects of the biology of the euryhaline Asian cichlid, Etroplus suratensis

1984

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SynopsisAspects of the biology of the euryhaline Asian cichlid Etroplus suratensis in a coastal lagoon of Sri Lanka were studied for a period of 15 months. Comparisons are made from the catches from the fishery of manmade, inland freshwater reservoirs. Changes in the stock structure in the sublittoral region of the lagoon indicate that recruitment takes place twice a year, during the high rainfall/low salinity periods. The feeding habits of E. suratensis were different in the two habitats. In the lagoon it fed mainly on molluscs and in the freshwater reservoirs on macrophytes. Feeding chronology based on diurnal surveys indicate that it feeds mainly during the daylight hours. The dentition of E. suratensis is adapted for both tearing and crushing (pharyngeal teeth). Distinct differences in the mean relative intestinal length between populations from the coastal lagoon and inland reservoirs were evident and these differences are correlated to their respective feeding habits. Diurnal changes in feeding activity are associated with changes in the stomach pH. The eggdiameter distribution of mature fish indicate that E. suratensis is a single spawner, that it sheds its mature eggs all at once. It is inferred that E. suratensis breeds twice a year but that an individual female is capable of spawning only once a year.

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Section: Discussionmentioning

confidence: 64%

Aspects of the biology of the euryhaline Asian cichlid, Etroplus suratensis

1984

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“…1990). Rabbitfish have been shown to feed readily on commercial fish feed, chicken and rabbit feed pellets (Ben-Tuvia et al 1973;Von Westernhagen & Rosenthal 1975Bowathondi 1982;Ismail ef al. 1986;Basyari & Tanaka 1988;Parazo 1990;Tacon et al 1990).…”

Section: Introductionmentioning

confidence: 99%

Optimum protein-to-energy ratio for two size groups of rabbitfish, Siganus canaliculatus (Park)

Yousif

Osman

Anawhi

et al. 1996

Aquaculture Nutrition

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Three approximately isoenergetic (17 kJ g−1) diets were formulated with dietary protein levels of 270, 360 and 480 g kg−1 (DM basis) providing protein‐to‐energy ratios of 15.69, 20.48 and 27.16 mg crude protein (CP) kJ−1, respectively. The effects of these diets on several growth and nutritional parameters were evaluated for the fry (2.50 ± 0.184 g) and fingerlings (11.53 ± 0.023 g) of Siganus canaliculatus (Park). Maximum growth and best feed utilization efficiency of fry were obtained using the diet containing 480 g kg−1 protein and P:E ratio of 27.16 mg CP kJ−1. For fingerlings the best results were obtained with the diet containing 360 g kg−1 protein and P:E ratio of 20.48 mg CP kJ. Body composition of the fry was not affected by the feeding regime whilst the effect was evident in the fingerling groups. The carcass protein content of the fingerling was observed to increase with increasing P:E ratios while lipid content decreased as P:E increased.

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“…Parazo (1990) found that 35 g CP/100 g diet was optimal for the growth of S. guttatus when the level of gross energy used in the diets was 16 MJ/ kg. Tacon et al (1990), Bwathondi (1982), and Ismail et al (1986) reported that 31 g CP/100 g diet was optimal for the growth of S. canaliculatus. The five experimental diets used in the present study were isoenergetic and contained similar amounts of lipids (8.4 g/100 g).…”

Section: Discussionmentioning

confidence: 97%

“…Parazo (1990) evaluated the protein requirement for Siganus guttatus and found that a diet containing 35 g CP/100 g diet was optimal. Tacon et al (1990), Bwathondi (1982), and Ismail et al (1986) reported that a diet containing 31 g CP/100 g diet was optimal for the growth of Siganus canaliculatus. El-Dakar et al (2011) reported that the minimum dietary protein requirement for S. rivulatus was 40 g CP/100 g diet.…”

Section: Introductionmentioning

confidence: 97%

Effect of Dietary Protein Level on Growth Performance and Blood Parameters of Marbled SpinefootSiganus rivulatus

Abou-Daoud

Ghanawi

Farran

et al. 2014

Journal of Applied Aquaculture

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The present study evaluated the effect of dietary protein levels on growth performance and blood parameters of juvenile marbled spinefoot ( Siganus rivulatus). Five semipurified, isoenergetic (14.2 MJ digestible energy/kg; 84 g lipids/kg) diets were formulated to contain 30, 35, 40, 45, and 50 g crude protein (CP)/100 g diet. Groups of 15 juvenile fish (7.4 g individual weight) were randomly assigned in triplicate to each of the five treatments and offered the test diets three times daily ad libitum for 9 weeks. Total erythrocyte and differential leukocyte counts, hematocrit, hemoglobin, blood glucose, protein, and serum aspartate aminotransferase and alanine aminotransferase were evaluated. Survival was greater than 95% in all treatments. Maximum growth was observed in fish offered the diet containing 40 g CP/100 g diet crude protein. Differences in dietary protein level had no effect on the hepatosomatic and viscerosomatic indices of the fish, but whole body composition was influenced by diet. Blood parameters showed no physiological or metabolic dysfunctions among fish offered any of the five diets. Findings of the present work strongly suggest that diets containing 40 g CP/100 g and 14.2 MJ digestible energy/kg are suitable for good growth of juvenile spinefoot rabbitfish Siganus rivulatus and do not affect hematological parameters.

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Preliminary investigations on rabbitfish, Siganus canalicullatus, cultivation in Tanzania

Cited by 10 publications

References 0 publications

Aspects of the biology of the euryhaline Asian cichlid, Etroplus suratensis

Aspects of the biology of the euryhaline Asian cichlid, Etroplus suratensis

Optimum protein-to-energy ratio for two size groups of rabbitfish, Siganus canaliculatus (Park)

Effect of Dietary Protein Level on Growth Performance and Blood Parameters of Marbled SpinefootSiganus rivulatus

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