The Influence of Stocking Density on Growth and Feed Efficiency in Gilthead Seabream, Sparus aurata

Yilmaz, Yasin; Arabacı, Muhammed

doi:10.3923/javaa.2010.1280.1284

Cited by 12 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to Cuvin-Aralar et al, (2007) better growth of the giant fresh water prawn (Macrobrachium rosenbergii) was achieved at low stocking density (15 prawns m 2 ) compared to those stocked at higher stocking density (90 prawns m 2 ). Some studies showed the increase in stocking densities improved growth performance parameter in gilthead sea bream (Yilmaz and Arabaci, 2010) in sea bass (Sammouth et al, 2009) this improved related to the immunological responses and physiological processes, mainly those related to metabolism and behavior (Barcellos et al, 2004;Kristiansen et al, 2004;Schram et al, 2006 andTan et al,2018). This was suggested to be as a result of increased metabolic cost caused by aggressive behavior at intermediate stocking density, and it was further suggested that aggressive behavior could be suppressed by a further increasing the stocking density.…”

Section: Growth Performance and Survival Rate Of Gilthead Sea Bream Frymentioning

confidence: 99%

THE INFLUENCE OF STOCKING DENSITY ON GROWTH AND FEED UTILIZATION IN GILTHEAD SEABREAM (Sparus aurata)

Eid

Ali

Elfeky

2019

Egyptian Journal of Nutrition and Feeds

View full text Add to dashboard Cite

tocking density is considered a priority topic in aquaculture research due to its bearing on the welfare of farmed fish and the need for future recommendations governing stocking density management on fish farms. The aim of this study was to evaluate the influence of stocking density (10, 20, 30 and 40 fry/L 3 ) on growth performance, Feed utilization and survival rate of fry gilthead seabream (Sparus aurata). The results showed that the group of fry stocked at density 30 fry/ L 3 was significantly the highest final weight, weight gain, daily gain, SGR and insignificant differences in survival rate. Growth performance parameters were the highest with stocking density 30 fry/ L 3 compared with stocking density (10, 20 and 40 fry/ L 3 ), respectively. The results indicated that the best FCR, PER and FE group of fry stocked at 30 fry/ L 3 than the rest of experimental groups. Stocking density also did not affect the crude protein and moisture content in body composition. But ash content was significantly highest at density 30 fry/ L 3 than the rest of other stocking density (10. 20 and 40 fry/L 3 ) groups. In contrast, total lipid was significantly highest at density 10 fry/L 3 than the rest of experimental groups (20, 30 and 40 fry/L 3 ). From the aforementioned results, it could be concluded that stocking density 30 fry/L 3 had the best growth performance and feed utilization under experimental conditions.

show abstract

Section: Growth Performance and Survival Rate Of Gilthead Sea Bream Frymentioning

confidence: 99%

THE INFLUENCE OF STOCKING DENSITY ON GROWTH AND FEED UTILIZATION IN GILTHEAD SEABREAM (Sparus aurata)

Eid

Ali

Elfeky

2019

Egyptian Journal of Nutrition and Feeds

View full text Add to dashboard Cite

show abstract

“…Based on the fact that gilthead seabream is one of the most important farmed fish species in the world, a major part of the continuous effort reported focused on improvement of its rearing conditions quality (Albrizio et al 2014;Basurco et al 2011;Cardinal et al 2011;De Boulton et al 2011;De Donno et al 2004;Loukovitis et al 2013;Papoutsoglou et al 1999;Somarakis et al 2013;Yilmaz and Arabaci 2010). As it should be expected, this attainment has been characterized by the investigation of the interactions of many rearing environmental parameters, bearing in mind that gilthead seabream is a euryhaline and eurythermal species.…”

Section: Introductionmentioning

confidence: 97%

Gilthead seabream (Sparus aurata) response to three music stimuli (Mozart—“Eine Kleine Nachtmusik,” Anonymous—“Romanza,” Bach—“Violin Concerto No. 1”) and white noise under recirculating water conditions

Papoutsoglou

Karakatsouli

Psarrou

et al. 2014

Fish Physiol Biochem

View full text Add to dashboard Cite

This study presents the results of the response of Sparus aurata to three different musical stimuli, derived from the transmission (4 h per day, 5 days per week) of particular music pieces by Mozart, Romanza and Bach (140 dB(rms) re 1 μPa), compared to the same transmission level of white noise, while the underwater ambient noise in all the experimental tanks was 121 dB(rms) re 1 μPa. Using recirculating sea water facilities, 10 groups, 2 for each treatment, of 20 specimens of 11.2 ± 0.02 g (S.E.), were reared for 94 days, under 150 ± 10 l× 12L-12D, and were fed an artificial diet three times per day. Fish body weight showed significant differences after 55 days, while its maximum level was observed after the 69th day until the end of the experiment, the highest value demonstrated in Mozart (M) groups, followed by those of Romanza (R), Bach (B), control (C) and white noise (WN). SGR (M = B), %WG (M = B) and FCR (all groups fed same % b.w.) were also improved for M group. Brain neurotransmitters results exhibited significant differences in DA-dopamine, (M > B), 5HIAA (C > B), 5HIAA:5HT (WN > R), DOPAC (M > B), DOPAC:DA and (DOPAC + HVA):DA, (C > M), while no significant differences were observed in 5HT, NA, HVA and HVA:DA. No differences were observed in biometric measurements, protease activity, % fatty acids of fillet, visceral fat and liver, while differences were observed regarding carbohydrase activity and the amount (mg/g w.w.) of some fatty acids in liver, fillet and visceral fat. In conclusion, present results confirm those reported for S. aurata, concerning the observed relaxing influence--due to its brain neurotransmitters action--of the transmission of Mozart music (compared to R and B), which resulted in the achievement of maximum growth rate, body weight and improved FCR. This conclusion definitely supports the musical "understanding" and sensitivity of S. aurata to music stimuli as well as suggesting a specific effect of white noise.

show abstract

“…In aquaculture, feed represents 30–70% of farm costs (Doupé and Lymbery, 2004 ; de Verdal et al, 2018a ) and is the primary expenditure of intensive fish farming (Rana et al, 2009 ). Several ways have been investigated to improve the use of feed by fish, including nutrition (Reigh and Ellis, 1992 ; Gaylord and Gatlin, 2001 ; Yao et al, 2014 ), husbandry (Alanärä, 1996 ; Imsland et al, 2005 ; Yilmaz and Arabaci, 2010 ), and genetics (Kause et al, 2006b ; de Verdal et al, 2018b ; Knap and Kause, 2018 ; Besson et al, 2020 ). While nutrition and husbandry have been widely studied and applied in production, genetic approaches need more investigation to enable practical implementation.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Feed Restriction and Isolated or Group Rearing on the Measurement of Individual Feed Intake and Estimation of Feed Conversion Ratio in Juvenile Nile Tilapia (Oreochromis niloticus) for Selective Breeding Purposes

et al. 2021

View full text Add to dashboard Cite

Accurately measuring the phenotype at the individual level is critical to the success of selective breeding programs. Feed efficiency is a key sustainability trait and is typically approached through feed conversion ratio (FCR). This requires measurements of body weight gain (BWG) and feed intake (FI), the latter being technically challenging in fish. We assessed two of the principal methods for measuring feed intake in fish over consecutive days: (1) group rearing 10 fish per group and video recording the meals and (2) rearing fish individually on a restricted ration. Juvenile Nile tilapia (Oreochromis niloticus) from the Genetically Improved Farmed Tilapia (GIFT) strain and the Cirad strain were entered into the study (128 GIFT and 109 Cirad). The GIFT strain were reared over three consecutive periods of 7 days each under different feeding, recording, and rearing scenarios (i) in groups fed an optimal ration (g100) or (ii) fed a 50% restricted ration (g50) both with video records of all meals and (iii) reared in isolation and fed a 50% restrictive ration. The Cirad strain were tested similarly but only for scenarios (i) and (iii). All fish were fed twice daily with a calculated ration. Correlations showed the same trends for the GIFT and the Cirad strains. For the GIFT strain, correlations were positive and significant for BWG and FI measured in scenarios (i) and (ii), 0.49 and 0.63, respectively, and FI measured in scenarios (i) and (iii) (0.50) but not for BWG measured in scenarios (i) and (iii) (0.29, NS). The phenotypic correlation estimated for FCR between scenarios (i) and (ii) with fish fed an optimal or a 50% restricted ration was low and not significant (0.22). Feed Conversion Ratio for GIFT fish reared in groups or in isolation and fed with a restricted ration [scenarios (ii) and (iii)] were not significantly correlated either. Social interactions between fish, potentially impacting their efficiency, may explain the results. Therefore, selective breeding programs seeking to improve feed efficiency will need to carefully plan the feeding rate and the rearing system used to estimate FCR in order to optimize selection for the targeted production system.

show abstract

The Influence of Stocking Density on Growth and Feed Efficiency in Gilthead Seabream, Sparus aurata

Cited by 12 publications

References 22 publications

THE INFLUENCE OF STOCKING DENSITY ON GROWTH AND FEED UTILIZATION IN GILTHEAD SEABREAM (Sparus aurata)

THE INFLUENCE OF STOCKING DENSITY ON GROWTH AND FEED UTILIZATION IN GILTHEAD SEABREAM (Sparus aurata)

Gilthead seabream (Sparus aurata) response to three music stimuli (Mozart—“Eine Kleine Nachtmusik,” Anonymous—“Romanza,” Bach—“Violin Concerto No. 1”) and white noise under recirculating water conditions

The Effects of Feed Restriction and Isolated or Group Rearing on the Measurement of Individual Feed Intake and Estimation of Feed Conversion Ratio in Juvenile Nile Tilapia (Oreochromis niloticus) for Selective Breeding Purposes

Contact Info

Product

Resources

About