Influence of diet on ongrowing and nutrient utilization in the common octopus (Octopus vulgaris)

Garcı́a, Benjamı́n Garcı́a; Aguado‐Giménez, Felipe

doi:10.1016/s0044-8486(01)00788-8

Cited by 87 publications

(52 citation statements)

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“…Growth rates, close to 1% %BW/day, were similar to the ones reported for this species at Sublimi 1999, 2000;García García and Aguado 2002) and were higher than those reported by Otero et al (1999), Iglesias et al (1999Iglesias et al ( , 2000 and Chapela et al (2006), who cultured this species at lower temperatures. Temperature greatly influences cephalopod growth , food conversions (Domingues 1999) and ingestion (Domingues et al 2006(Domingues et al , 2007.…”

Section: Discussionsupporting

confidence: 85%

“…In fact, reproductive behavior was first observed in some tanks after 60 days of the experiment, and in all tanks by day 70. When octopuses mature and start reproductive behavior, males grow larger because females experience stronger metabolic changes during sexual maturation, stopping somatic growth (O'Dor and Wells 1987;Iglesias et al 2000;García García and Aguado 2002). This would compromise experimental results on growth and could also have contributed to the decrease in growth rates during this final part of the experiment, especially in the lower density where mortality was not a significant factor.…”

Section: Discussionmentioning

confidence: 99%

“…Octopuses were fed frozen squid (Loligo gahi) once a day at 14:00 h, at 5% body weight per day (%BW/day). The rations should be appropriate for on-growing of this species, based on previous studies by Aguado and García García (2002), García García and Aguado (2002), and Chapela et al (2006). Food remains were collected from the tanks on the next morning and weighed previous to feeding.…”

Section: Methodsmentioning

confidence: 99%

“…The influence of diets during on-growing has been studied (Cagnetta and Sublimi 1999;Aguado and García García 2002;García García and Aguado 2002). Oxygen consumption when fasting and after eating was also determined (Cerezo and García García 2004a, b), as well as suitable oxygen concentrations at different temperatures (Cerezo et al 2002;García García 2004a, 2004b).…”

Section: Introductionmentioning

confidence: 99%

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Effects of three culture densities on growth and survival of Octopus vulgaris (Cuvier, 1797)

2008

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The purpoase of this research was to test the effects of three culture densities on the growth and survival of Octopus vulgaris. A total of 141 sub-adult octopuses (1,175.4 ± 194.9 g) were randomly distributed in nine tanks of 2,000 l each (3.6 m 9 1.1 m, and 50 cm water depth). Three tanks were stocked with a low initial density of 4 kg/m 3 , while three other tanks were stocked with an initial density of 8 kg/m 3 , and the remaining three tanks were stocked at an initial density of 15 kg/m 3 . Octopuses were all fed frozen squid (Loligo gahi) at 5% body weight per day (%BW/day). The experiment lasted for 70 days. Water temperature varied between 20 ± 2°C, and salinity varied between 36 ± 1 ppt. During the entire experiment, dissolved oxygen was always [75%, and ammonia was always lower than 0.1 mg/l. No differences in growth or growth rates (between 0.9 and 1.1%BW/day for the three densities) were found. Nevertheless, mortality was significantly lower for the low density compared to the other two densities tested. Maximum densities in the culture tanks ([25 kg/m 3 ) were attained in the higher culture densities after 56 days of the experiment.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of three culture densities on growth and survival of Octopus vulgaris (Cuvier, 1797)

2008

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“…Las dietas naturales han consistido en suministrar diferentes especies de crustáceos, peces y moluscos, pero los mejores resultados de crecimiento y eficiencias en especial en O. vulgaris se han logrado con dieta en base a crustáceos y los menores con pescado (Tuñón et al, 2002;Aguado-Giménez & García-García, 2002). Existen numerosos intentos por sustituir las dietas frescas por preparadas con resultados variables (García-García & Aguado, 2002;Domingues et al, 2005;Aguila et al, 2007;Cerezo et al, 2008;Quintana et al, 2008). En O. vulgaris el crecimiento ha sido moderado o negativo, usando gelatina o alginato en la preparación de la dieta (Cerezo et al, 2008), en cambio ejemplares de O. maya aceptaron dietas preparadas con pasta de músculos de crustáceos aglutinadas con gelatina y sus crecimientos fueron moderados, muy similares respecto a los que consumieron un alimento control (Rosas et al, 2008).…”

Section: Introductionunclassified

Evaluacion del crecimiento del pulpo comun Octopus mimus del norte de Chile alimentado con dietas formuladas

Zúñiga

Paz

Torres

2011

lajar

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RESUMEN.Durante 57 días se comparó el crecimiento y sobreviviencia de pulpos juveniles Octopus mimus del norte de Chile alimentados con tres diferentes dietas: dos dietas húmedas (A y B) aglutinadas con solución de gelatina embutidas en tripa de cordero y una dieta control (C) natural. La dieta (A) fue elaborada en base a una mezcla de filete triturado del pescado Cheilodactylus variegatus con harina de pellet para salmón, la dieta (B) con pasta de almeja (Protothaca thaca) mezclada con filete de Ch. variegatus y la dieta control consistió en el suministro de almejas frescas congeladas (C). Basado en un diseño experimental de medidas repetidas, los pulpos se mantuvieron individualmente en estanques de 70 L con circulación de agua de mar y aireación permanente. Los pulpos que consumieron la dieta B no experimentaron mortalidad y la dieta control C presentó mortalidad del 16,7%, sus crecimiento fueron similares (P > 0,05) con tasas de crecimiento absoluta (AGR) de 7,0 ± 0,91 (g d -1 ) y 6,6 ± 1,10 (g d -1) respectivamente. Los pulpos alimentados con la dieta A registraron mortalidad de 33,3% y tasa de crecimiento absoluta negativa, AGR= -1,70 ± 0,37 (g d -1). La dieta A que contenía como ingrediente pellet para salmón molido como harina no tuvo una adecuada aceptación y los ejemplares experimentaron disminución de su peso. La dieta B preparada con gelatina de origen animal como aglutinante, no implicó un efecto negativo en la palatabilidad y aceptabilidad en comparación al control basada en almeja fresca congelada, incluso los organismos lograron crecimientos similares. Los resultados permitirán a futuro mejorar la calidad nutricional de dietas artificiales para maximizar el crecimiento de O. mimus en cautiverio. Palabras clave: Octopus mimus, crecimiento, dieta, embutido, cautiverio, norte de Chile. Growth evaluation of octopus (Octopus mimus) from northern Chile fed with formulated dietsABSTRACT. The growth and survival of juvenile octopus, Octopus mimus, from northern Chile, fed three different diets were analyze during 57 days. Two of the diets (A and B) were wet diets stuffed in lamb gut with a gelatin solution, and the third (C) was a natural control. Diet (A) was a mixture of chopped fish meat (Cheilodactylus variegatus) and pellets of salmon meal; diet B was made up of clam (Protothaca thaca) mixed with C. variegatus meat; and diet (C) (control) consisted of fresh frozen clams. The experimental design was based on repetitive measures; the octopuses were supported individually 70-L tanks, with constant sea water circulation and aeration. The octopuses fed diet B did not registred mortality, whereas those fed the control (diet C) presented a mortality of 16.7%. Growth rates were similar (P > 0.05) for these two groups, with absolute growth rates (AGR) of 7.0 ± 0.91 (g d -1) and 6.6 ± 1.10 (g d -1), respectively. The octopuses fed diet A had a mortality of 33.3% and an AGR of -1.70 ± 0.37 (g d -1 ). Diet A, which contained pellets of ground salmon meal, was not well-accepted, and the weight of the octopuses i...

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Cephalopods

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Influence of diet on ongrowing and nutrient utilization in the common octopus (Octopus vulgaris)

Cited by 87 publications

References 10 publications

Effects of three culture densities on growth and survival of Octopus vulgaris (Cuvier, 1797)

Effects of three culture densities on growth and survival of Octopus vulgaris (Cuvier, 1797)

Evaluacion del crecimiento del pulpo comun Octopus mimus del norte de Chile alimentado con dietas formuladas

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