Aufzucht und Ablaichen von Siganiden (Pisces: Teleostei) in einem geschlossenen Seewasserkreislauf

Westernhagen, Hein von; Rosenthal, H.

doi:10.1007/bf01611684

Cited by 19 publications

(6 citation statements)

References 14 publications

(5 reference statements)

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“…The first trial: Effect of feeding frequency Water quality of the first trail Water quality parameters recorded in this experiment are shown in Table (2). The averages of water temperature, water pH, water salinity, electrical conductivity (EC), dissolved Oxygen, and nitrite (NO 2 ), nitrate (NO 3 ), ammonia (NH 4 ) values in all treatments were within the acceptable limits for rabbitfish (Siganus rivulatus) fry as reported by (Westernhagen and Rosenthal, 1975, Huguenin and Colt, 1989,Meade, 1989, Davis, 1993,Lawson, 1995,ANZECC, 2000, EPA, 2003, Saoud et al, 2007aand Saoud et al, 2008.…”

Section: Resultssupporting

confidence: 59%

Effect of feeding frequency and feeding time on growth performance, feed utilization efficiency and body chemical composition on Rabbitfish Siganus rivulatus fry and juvenile under laboratory condition

Abdel-Aziz¹,

Mohammed²,

Abou-Zied³

et al. 2016

Egypt. J. of Aquatic Biolo. and Fish.

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The present study consisted of two trials that conducted to evaluate the feeding frequency and the feeding time on growth performance, feed efficiency and body composition of rabbitfish Siganus rivulatus, the fish fed on one diet (35% crude protein). The first trial was conducted on rabbitfish fry (initial weight 0.18 g ± 0.012) and consisted of different three treatments of feeding frequency, the first treatment the daily meal divided into two times, the second treatment the daily meal divided into three times and the third treatment, the meal was divided into four times. The second trial was conducted on rabbitfish juvenile (initial weight 0.948 g ± 0.124) and consisted of different four treatments of feeding time. fish fed in two times the first treatment fed at 9am and 11am, the second treatment fish fed at 11am and 1pm, the third treatment fish fed 1pm and 4pm and the fourth treatment fish fed at 9am and 4pm. The statistical analysis of results indicated that, feeding frequency feeding time appeared significantly differences between the treatments in growth performance and feed utilization parameters. The total gain in weight and feed conversion ratio were affected by feeding frequency and feeding time. The results affirmed that, the third treatment (four time feeding /day) in the first trial and both the first and second treatments in the second trial were the best of the growth performance and feed utilization parameters.

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Section: Resultssupporting

confidence: 59%

Effect of feeding frequency and feeding time on growth performance, feed utilization efficiency and body chemical composition on Rabbitfish Siganus rivulatus fry and juvenile under laboratory condition

Abdel-Aziz¹,

Mohammed²,

Abou-Zied³

et al. 2016

Egypt. J. of Aquatic Biolo. and Fish.

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show abstract

“…In general, these results are in agreement with Costa et al [62] all treatments were within the acceptable limits for rabbitfish (Siganus rivulatus) fry as reported by [2,[30][31][32][33][34][35][36][37].…”

Section: Measurements Of Feed Utilization Efficiencysupporting

confidence: 90%

Effect of Use Fresh Macro Algae (Seaweed) Ulva fasciata and Enteromorpha flaxusa With or Without Artificial Feed on Growth Performance and Feed Utilization of Rabbitfish (Siganus rivulatus) fry

Abdel-Aziz¹,

Ragab²

2017

J Aquac Res Development

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“…Water quality parameters recorded in this experiment were shown in Table (2). The averages of water temperature, water pH, water salinity, electrical conductivity (EC), dissolved Oxygen, and nitrite (NO 2 ), nitrate (NO 3 ), ammonia (NH 4 ) concentration in all treatments were not affected by the high stocking rate and within the acceptable limits for rabbitfish, juveniles Siganus rivulatus, as reported by (Westernhagen and Rosenthal, 1975, Huguenin and Colt, 1989, Meade, 1989, Davis, 1993, Lawson, 1995, ANZECC, 2000, EPA, 2003, Saoud et al, 2007aand Saoud et al, 2008.…”

Section: Water Quality Of the First Trailsupporting

confidence: 56%

“…Although, there were significant differences between the treatments and increased of the water exchange period, which negatively affected on the water quality such as (T4) but all averages of water quality parameters in these treatments were proportions for rabbitfish juvenile growth and within the acceptable limits for rabbitfish (Siganus rivulatus) juvenile as reported by (Westernhagen and Rosenthal, 1975, Huguenin and Colt, 1989, Meade, 1989, Davis, 1993, Lawson, 1995, ANZECC, 2000, EPA, 2003, Saoud et al, 2007aand Saoud et al, 2008. (a, b, c and d) Average in the same row having different superscripts significantly different at (P≤0.05).…”

Section: Water Quality Of the Second Trailmentioning

confidence: 64%

Effect of stocking density and water exchange period on growth performance, feed utilization and body chemical composition on Rabbitfish Siganus rivulatus juvenile under laboratory condition

Abdel-Aziz¹,

Abou-Zied²,

Allam³

et al. 2016

Egypt. J. of Aquatic Biolo. and Fish.

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Two trials were conducted to determine the best stocking density and the optimum of water change period on growth performance and feed utilization of rabbitfish juvenile (Initial body weight 0.948 g ± 0.124). Stocking density was tested in the first trial, which consisted of four treatments. The fish were stocked at 10 fish/m 3 and 20, 30 and 40fish/ m 3 in four treatments respectively. The results showed significant differences between the treatments and cleared that, stocking density 10 and 20 fish / m 3 were the better than 30 and 40 fish / m 3 in growth and feed utilization parameters. The results affirmed that, an increase of fish number over 20 fish/ m 3 lead to a decrease of growth and feed utilization parameters. The second trial designed to evaluate different four periods of the water exchange at rate 50 % of the water volume.The water was exchanged every day, every two days, every three days and every four days in the first, second, third and fourth treatments respectively. The results revealed significant differences between the treatments and cleared that, the best total weight gain and feed conversion ratio were achieved with the third treatment (water exchanged every three days) and the water quality was within the acceptable limits for fish growth in all treatments.

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Aufzucht und Ablaichen von Siganiden (Pisces: Teleostei) in einem geschlossenen Seewasserkreislauf

Abstract: 12,1, 15,8, 20,9, 30,6, 32,2 %0 S und 26 ° C durchgeftihrt. Zwischen 20,9 und 32,2 %0 S betrug die Befruchtungsrate 95 °/o und dariiber. Die Embryonalentwi&lung und die Larvalentwi&lung w~hrend der Dotterzehrung werden beschrieben.

Cited by 19 publications

References 14 publications

Effect of feeding frequency and feeding time on growth performance, feed utilization efficiency and body chemical composition on Rabbitfish Siganus rivulatus fry and juvenile under laboratory condition

Effect of feeding frequency and feeding time on growth performance, feed utilization efficiency and body chemical composition on Rabbitfish Siganus rivulatus fry and juvenile under laboratory condition

Effect of Use Fresh Macro Algae (Seaweed) Ulva fasciata and Enteromorpha flaxusa With or Without Artificial Feed on Growth Performance and Feed Utilization of Rabbitfish (Siganus rivulatus) fry

Effect of stocking density and water exchange period on growth performance, feed utilization and body chemical composition on Rabbitfish Siganus rivulatus juvenile under laboratory condition

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