Effects of graded dietary lipid levels on growth performance, fatty acid profile, and hematological characteristics of hybrid pufferfish (Takifugu obscurusｘT. rubripes) juveniles

Yoo, Gwangyeol; Park, In-Seok; Lee, Seunghyung

doi:10.1016/j.aqrep.2022.101120

Cited by 2 publications

(1 citation statement)

References 45 publications

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“…Takifugu obscurus, known as porcupine fish, is a migratory fish belonging to the Takifugu. As a traditional aquatic product of Yangtze River in China, T. obscurus is widely distributed in the east China Sea, the Yellow Sea, the Korean Peninsula, and Japan [1]. T. obscurus, with low fat and high protein, has high nutritional and medical value.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Effectiveness of Marking Juvenile Takifugu obscurus Otoliths with Strontium

Zhang

Feng

et al. 2022

Fishes

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Strontium marking technology is commonly used for extensive marking in stock enhancement and releasing activities. In order to explore the feasibility of this technology for juvenile Takifugu obscurus, five different concentrations of strontium (0, 12, 18, 36, and 72 mg/L) were set up by strontium chloride hexahydrate (SrCl2·6H2O) and T. obscurus were immersed for 7 days. Then, T. obscurus were reared in non-additive water for 25 days. The results showed that the survival rate of all groups was 100%, except the 72 mg/L group, after 7 days of immersion. Moreover, the growths of all the marked groups were better than that of the control group. There was no significant difference between the control and marked groups, except for the 18 mg/L group, indicating that the appropriate concentration of strontium might have positive effect for T. obscurus. The strontium to calcium (Sr/Ca) ratios of otoliths in the marked groups increased with increasing concentration and time, which were higher than the baseline, respectively. Then, the Sr/Ca ratios returned to the original level, but the peak value was still retained, suggesting that the success rate of the strontium marking reached 100%. Notably, the residual strontium content of 18 mg/L group was insufficient for causing negative effects for T. obscurus after 25 days. Therefore, in consideration of the growth, survival, and effect of strontium marking on otolith, 18 mg/L is an appropriate concentration for strontium marking of juvenile T. obscurus. This study confirmed the feasibility of strontium marking for T. obscurus and provided a new approach to rationally and scientifically evaluate the stock enhancement and releasing efficiency of T. obscurus.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Effectiveness of Marking Juvenile Takifugu obscurus Otoliths with Strontium

Zhang

Feng

et al. 2022

Fishes

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Evaluación de diferentes niveles de proteína y lípidos dietéticos en el crecimiento, la eficiencia alimenticia y los índices biométricos y hematológicos de juveniles de robalo blanco Centropomus viridis

Abdo-de la Parra,

Rodríguez-Ibarra,

Ibarra-Castro

et al. 2023

Cienc. Mar.

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Se llevó a cabo un experimento para evaluar el efecto de varios niveles de proteína y lípidos dietéticos en el rendimiento de juveniles de robalo blanco (Centropomus viridis). Se realizó un diseño factorial 4 × 2 con 4 niveles de proteína (40%, 46%, 52% y 58%) y 2 niveles de lípidos (10% y 13%), con 3 replicados por tratamiento. Los peces con un peso inicial de 14.80 ± 0.80 g se alimentaron a saciedad aparente 3 veces al día durante 6 semanas. El crecimiento de los juveniles no presentó diferencias significativas entre los tratamientos. La eficiencia alimenticia solo fue afectada por el nivel de proteína en la dieta, y la mejor tasa de eficiencia alimenticia se obtuvo con las dietas con 52% de proteína; el índice de eficiencia proteica fue significativamente menor con las dietas con 58% de proteína. El índice hepatosomático disminuyó al aumentar el contenido de proteína, y el índice de grasa peritoneal aumentó con el nivel de lípidos en la dieta. El factor de condición no fue afectado por el nivel de proteína o lípidos dietéticos. El hematocrito y la proteína total del plasma fueron significativamente mayores con las dietas con 40% de proteína; la glucosa y los triglicéridos en la sangre fueron afectados por ambos nutrientes. Se concluye que los juveniles de C. viridis pueden ser alimentados con dietas que contengan 40% de proteína y 10% de lípidos y una relación proteína/energía de 20.69 mg·kJ–1, bajo las condiciones experimentales de este estudio.

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Effects of graded dietary lipid levels on growth performance, fatty acid profile, and hematological characteristics of hybrid pufferfish (Takifugu obscurusｘT. rubripes) juveniles

Cited by 2 publications

References 45 publications

Evaluation of the Effectiveness of Marking Juvenile Takifugu obscurus Otoliths with Strontium

Evaluation of the Effectiveness of Marking Juvenile Takifugu obscurus Otoliths with Strontium

Evaluación de diferentes niveles de proteína y lípidos dietéticos en el crecimiento, la eficiencia alimenticia y los índices biométricos y hematológicos de juveniles de robalo blanco Centropomus viridis

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