Effects of dietary lipid level on growth and lipid utilization by juvenile Atlantic halibut (Hippoglossus hippoglossus, L.)

Martins, Dulce Alves; Valente, Luísa; Lall, Santosh P.

doi:10.1016/j.aquaculture.2006.10.017

Cited by 71 publications

(66 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nevertheless, contrarily to the viscera, muscle total lipids were not affected by increasing dietary lipid levels. These results are in agreement with earlier observations in flatfish species such as halibut (13,16) , turbot (18) and Senegalese sole (4) , and suggest that other tissues such as skin and subdermal adipose tissue or other carcass fraction (fins, brain, bones) might be important fat-storage sites. In the present study, Senegalese sole subdermal fat only represented about 0·2 % of wholebody weight and 4 % of total body lipids, showing that lipids are probably being accumulated under the skin like in turbot (18) and between the dorsal and ventral fins and around the belly flap like in halibut (31) .…”

Section: Discussionsupporting

confidence: 93%

“…Five isonitrogenous (56 % DM) experimental diets were formulated to contain increasing lipid levels (4,8,12,16 and 20 % DM; L4, L8, L12, L16 and L20, respectively). The dietary protein fraction was achieved by means of a variable blend of practical ingredients such as fishmeal, soyabean meal, maize gluten and wheat gluten, whereas increasing lipid levels were obtained by increasing fish oil inclusion.…”

Section: Experimental Dietsmentioning

confidence: 99%

See 1 more Smart Citation

Dietary lipid level affects growth performance and nutrient utilisation of Senegalese sole (Solea senegalensis) juveniles

et al. 2009

View full text Add to dashboard Cite

Over the last few years, several aspects of Senegalese sole (Solea senegalensis) culture have been developed and optimised but the dietary lipid level for optimal growth has never been determined. Hence, five isonitrogenous diets (56 % dietary protein) with increasing dietary lipid levels (4,8,12, 16 and 20 % DM) were fed to satiation to triplicate groups of twenty fish (mean initial weight 10 g). Fifteen tanks were randomly assigned one of the five diets. Feed was distributed using automatic feeders, and fish were fed over a 16-week period. At the end of the experiment the fish fed on diets containing the two lowest dietary lipid levels (4 and 8 %) showed a 3-fold body-weight increase with a significantly higher daily growth index than fish fed higher lipid levels (1·2 v. 0·8). Moreover, these fish displayed a significantly lower dry feed intake (12 g/kg per d) and feed conversion ratio (1·0) compared with fish fed higher lipids levels (16-19 g/kg per d; feed conversion ratio 2·0). Low dietary lipid levels (,12 %) significantly improved nutrient retention and gain and hence growth, without major effects on whole-body composition. Despite the slight alteration in n-3 PUFA muscle content in the fish fed low-fat-diets, this fish fed low dietary lipid still remains a rich n-3 PUFA product and generally maintained its nutritional value. These results evidenced a low lipid tolerance of Senegalese sole juveniles and suggest a maximal dietary inclusion level of 8 % lipids for both optimal growth and nutrient utilisation without compromising flesh quality.Lipid nutrition: Flatfish: Dietary lipid tolerance: Protein-sparing effectThe aquaculture industry has expanded in Europe over the last decades, but few marine fish species have contributed to this growth. The successful development of Southern European aquaculture has resulted in increased production of gilthead seabream (Sparus aurata), sea bass (Dicentrarchus labrax) and turbot (Psetta maxima), leading to market saturation and reduced prices. For these reasons, great efforts have recently been devoted to find new candidate species, to improve diversity and to ensure sustainable development of the industry.Senegalese sole (Solea senegalensis) is a promising flatfish species for marine farming, especially due to its high market value. Over the last few years significant advances have been accomplished on Senegalese sole weaning techniques and larvae feeding (1 -3) . However, little is known about the nutritional needs of this flatfish species during its juvenile stage (4,5) . The protein requirement for maximum protein accretion in Senegalese sole has been estimated at 600 g/kg diet (5) , but, so far, no studies concerning the optimal dietary lipid level have been carried out.Dietary formulations in aquaculture tend to increase lipid content as a non-protein source for enhancing growth and sparing protein, and for reducing organic matter and N losses (6 -10) . Nevertheless, in flatfish species positive results on protein sparing are limited and controversial. High ...

show abstract

Section: Discussionsupporting

confidence: 93%

Section: Experimental Dietsmentioning

confidence: 99%

Dietary lipid level affects growth performance and nutrient utilisation of Senegalese sole (Solea senegalensis) juveniles

et al. 2009

View full text Add to dashboard Cite

show abstract

“…The differences in the FCR, average daily weight gain, PER, among the groups was similar to the weight gain. Then optimum lipid level resulted in improved growth, FCR, nutrient utilization and reduced nitrogen excretion (Martins et al, 2007). Mishra and Samantaray (2004) for each diet ± SE).…”

Section: Journal Of Fisheriessciencescom Mishra Et Al 11(3): 005-0mentioning

confidence: 99%

Effect of Algae Based Diets on Growth Performance, Body Composition and Fatty Acid Profile of Indian Major Carp, Rohu Labeo Rohita, Hamilton)

Mishra¹,

Patra²,

Samantaray³

2017

fisheries-aqua

View full text Add to dashboard Cite

Abstract:Six iso-energetic (352 kcal gross energy/100 g feed) and iso-nitrogenous (32% crude protein) experimental diets containing one of the four algae (Anabaena cylindrica, AN; Nostoc salbasa, NS; Spirulina platensis, SP; Westleopsis prolifica, WS) as the major dietary ingredient (40% of the total composition) or algal meal mixture with supplemental protein (AMM+PS) or only algal meal mixture (AMM) were tested against a control diet to find out the suitability of algal meal to develop practical diet for rohu fingerling. The experimental fish of average weight 2.0 ± 0.1 g were fed at a rate equaling 4% of body wt/day for 8 weeks at an experimental temperature of 28 ± 2°C. Significant (p<0.05) enhancement in growth rate was observed in the groups fed with WS (571%) followed by the groups fed with NS (517.6%) and SP (502.8%) as compared to that of the groundnut oil, rice bran and soybean meal based control diet (406.4%). Fingerlings fed with algal meal mixture (AMM) gained least (255.2%). Diet with WS performed well in terms of FCR, PER, HSI, MR and CF when AMM showed least efficiency. Fish fed with SP showed better protein utilization (ANPU%) as compared to the other dietary groups. Carcass protein was not affected by any diet. The MUFA and PUFA of liver and PUFA of muscle increased over the initial value fed with control and experimental diets. But the MUFA of muscle with these diets are less than the initial. The SFA content in all diets of both the tissues is either same or less than initial value except with AMM diet. The total n-3PUFA in liver increased with all diets over the initial value. But this increase in muscle was observed only with AN, NS, WS and AMM+PS diets. The n-6PUFA of liver and muscle remained either same or increased with all diets over initial value. This study showed that individual algal diets gave better result in growth performance and PUFA content. Among all the algal diets WS found to be the best.

show abstract

“…Generally, it is believed that the content and composition of fatty acid of the feed directly affect the fatty acid content and composition of fish muscle (Martins et al, 2007;Hansen et al 2008). Maintaining high levels of n-3 PUFA, as well as low levels of n-6 fatty acids, in farmed fish, is a major concern for producers in order to provide a high nutritional value of the product for human consumption (Simopoulos, 2004).…”

Section: Discussionmentioning

confidence: 99%

Untitled

Wang¹,

Xu²,

Bai³

et al. 2015

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

A study was conducted to compare growth and nutrients in the muscle of diploid and triploid masu salmon (Oncorhynchus masou B., 1856). Triploidy was induced by providing a heat shock treatment to the fertilized eggs. When fish grew up to 100 g around, triploids were prepared after triploidy determination prior to the trial. Initial mean weights of diploids and triploids were 103.67 ± 9.66 g and 109.95 ± 8.45 g, respectively. Quadruplicate groups of 30 fish were randomly assigned in each tank fed by water with a flow-through system and were fed to apparent satiation for 140 days. Survival, specific growth rate, feed conversion rate, condition factor, relative growth rate and absolute growth rate were determined in both groups. The contents of moisture, crude protein, lipid, ash, amino acids and fatty acids in muscle were analyzed. It has been determined that the triploid fish showed a higher weight gain than diploid fish despite the difference was not significant (P>0.05). There were no significant differences in crude protein, crude lipid, ash, amino acids and fatty acids between diploids and triploids (P>0.05). In conclusion, growth performances and nutritional composition in muscle were similar between diploids and triploids, and triploids had no negative effects on muscle nutrients under fish farming practices especially for the production of Oncorhynchus masou on-growing stages.

show abstract

Effects of dietary lipid level on growth and lipid utilization by juvenile Atlantic halibut (Hippoglossus hippoglossus, L.)

Cited by 71 publications

References 18 publications

Dietary lipid level affects growth performance and nutrient utilisation of Senegalese sole (Solea senegalensis) juveniles

Dietary lipid level affects growth performance and nutrient utilisation of Senegalese sole (Solea senegalensis) juveniles

Effect of Algae Based Diets on Growth Performance, Body Composition and Fatty Acid Profile of Indian Major Carp, Rohu Labeo Rohita, Hamilton)

Untitled

Contact Info

Product

Resources

About