Effects of fatty acid composition and spawning season patterns on egg quality and larval survival in common snook (Centropomus undecimalis)

Yanes-Roca, Carlos; Rhody, Nicole R.; Nystrom, Michael; Main, Kevan L.

doi:10.1016/j.aquaculture.2008.10.043

Cited by 106 publications

(62 citation statements)

References 38 publications

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“…Despite recent breakthroughs in the spawning of captive common snook broodstock (Ibarra-Castro et al, 2011;Neidig et al, 2000;Rhody et al, 2013;Rhody et al, 2014;Yanes-Roca et al, 2009) and advances in larval rearing protocols (Barón-Aguilar et al, 2013;Hauville, Main, et al, 2014;Hauville, Bell, et al, 2014;Ibarra-Castro et al, 2011;Rhody et al, 2010;Wittenrich et al, 2009), to date, there is still no established large scale production of this species for food or restocking. Reproductive bottlenecks of captive snook broodstock include the failure of females to ovulate without hormonal manipulation, reduced milt production in males and inconsistent supply of high quality eggs and larvae (Rhody et al, 2013;Rhody et al, 2014).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Comparative study of lipids and fatty acids in the liver, muscle, and eggs of wild and captive common snook broodstock

et al. 2015

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In this study, the lipid composition of wild and captive common snook broodstock were investigated to identify potential nutritional deficiencies and formulate suitable diets for captive stocks. Results showed captive snook incorporated significantly more lipid than their wild counterparts. However, cholesterol and arachidonic acid (ARA) levels were significantly lower compared to wild fish, which may impact steroid and prostaglandin production, reproductive behavior and gametogenesis. In eggs obtained from captive broodstock, high docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) levels, associated with low ARA contents were found. As a result, ARA/EPA ratio in captive eggs was less than half of that in wild eggs with the potential for negative consequences on embryo and larval development. In conclusion, large differences were noticed between wild and captive broodstock that may contribute to the reproductive dysfunctions observed in captive snook broodstock (e.g. incomplete oocyte maturation, low milt production and highly variable egg and larval quality). The wild snook survey also identified the presence of hydrocarbons in the liver, which should be further studied to identify a potential impact on the reproductive performances of a vulnerable population like common snook.

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Section: Accepted M Manuscriptmentioning

confidence: 99%

Comparative study of lipids and fatty acids in the liver, muscle, and eggs of wild and captive common snook broodstock

et al. 2015

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“…Yanes-Roca et al (2009) found differences in the quality of embryos and in the survival rate of larvae, among the different seasons, which are correlated to fatty acids deposition in C. undecimalis females. Although researching on the supplementation with polyunsaturated fatty acids have been reported for larval and embryonic phases, the requirement of essential fatty acids for fat snook juveniles should be still defined.…”

Section: Introductionmentioning

confidence: 98%

Fish oil replacement by soybean oil in the diet of fat snook juveniles

Bendhack

Baldan

Fabregat

2014

Pesq. agropec. bras.

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-The objective of this work was to evaluate fish oil replacement by soybean oil in diets, as for the effects on the performance and body composition of juveniles of fat snook (Centropomus parallelus). The experiment was carried out in a randomized block design, with three treatments (lipid sources) and six replicates, in a 60-day period. Fat snook juveniles (24.17±0.28g) were distributed in 18 experimental tanks of 200 L each, equipped with aeration and heating systems, under continuous water renovation (800% per day). Three isoproteic (44% CP) and isoenergetic (4,635 kcal CE kg -1 ) diets were formulated to comprise three replacement rates (0, 50, and 100%) of fish oil by soybean oil. Biometric analyses were done to evaluate fish performance, and two entire specimens from each replicate were used for body composition analyses. The zootechnical indices of weight gain (38.68±5.41 g), feed conversion (1.38±0.10), and specific growth at 1.70±0.18% weight gain per day were considered satisfactory. Lipid source substitution does not affect the performance and body composition of fat snook juveniles, which suggests that soybean oil can replace fish oil in diet formulation.Index terms: Centropomus parallelus, body composition, fatty acids, marine fish, nutrition. Substituição do óleo de peixe por óleo de soja em dietas para juvenis de robalo-pevaResumo -O objetivo deste trabalho foi avaliar a substituição do óleo de peixe por óleo de soja em dietas, quanto ao efeito no desempenho e na composição corporal de juvenis de robalo-peva (Centropomus parallelus). O experimento foi realizado em delineamento de blocos ao acaso, com três tratamentos (fonte de lipídeos) e seis repetições, pelo período de 60 dias. Juvenis de robalo-peva (24,17±0,28 g) foram distribuídos em 18 tanques experimentais de 200 L cada um, equipados com sistemas de aeração e aquecimento, com renovação contínua da água (800% ao dia). Três dietas isoproteicas (44% PB) e isoenergéticas (4.635 kcal EB kg -1 ) foram formuladas para abranger três níveis de substituição (0, 50 e 100%) do óleo de peixe pelo óleo de soja. Realizaram-se avaliações biométricas quanto ao desempenho, e dois animais por repetição foram utilizados para análises de composição corporal. Os índices zootécnicos de ganho de peso (38,68±5,41 g), conversão alimentar (1,38±0,10) e taxa de crescimento específico a 1,70±0,18% do peso vivo por dia foram considerados satisfatórios. A substituição da fonte de lipídeo não afeta o desempenho nem a composição corporal de juvenis de robalo-peva, o que é uma indicação de que o óleo de soja pode substituir o óleo de peixe na formulação de dietas.Termos para indexação: Centropomus parallelus, composição corporal, ácidos graxos, peixe marinho, nutrição.

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“…The experiments run with the L type rotifers in these experimental trials, showed extremely low survival and DHA analysis of larvae showed a steep decrease in DHA from 1 to 6 DAH. DHA values in 6 DAH larvae were below 1% of total lipid concentration (Yanes-Roca et al 2009). In both experimental and production systems mass mortality regularly occurred between 5-6 DAH (Yanes-Roca et al 2009) and 75-85% of all stocked tanks did not have live larvae after 6 DAH.…”

Section: Alternative Prey For Common Snook Larvaementioning

confidence: 99%

“…DHA values in 6 DAH larvae were below 1% of total lipid concentration (Yanes-Roca et al 2009). In both experimental and production systems mass mortality regularly occurred between 5-6 DAH (Yanes-Roca et al 2009) and 75-85% of all stocked tanks did not have live larvae after 6 DAH. These results along with the finding that only 5% of the larvae fed L type rotifers had food in their stomachs lead to the conclusion that the snook larvae were dying of starvation.…”

Section: Alternative Prey For Common Snook Larvaementioning

confidence: 99%

Improving Larval Culture and Rearing Techniques on Common Snook (Centropomus undecimalis)

Roca¹,

Main²

2012

Aquaculture

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Effects of fatty acid composition and spawning season patterns on egg quality and larval survival in common snook (Centropomus undecimalis)

Cited by 106 publications

References 38 publications

Comparative study of lipids and fatty acids in the liver, muscle, and eggs of wild and captive common snook broodstock

Comparative study of lipids and fatty acids in the liver, muscle, and eggs of wild and captive common snook broodstock

Fish oil replacement by soybean oil in the diet of fat snook juveniles

Improving Larval Culture and Rearing Techniques on Common Snook (Centropomus undecimalis)

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