<i>Artemia</i>sp. Proportions and Effects on Survival and Growth of Pintado,<i>Pseudoplatystoma corruscans</i>Larvae

Beux, Luis Fernando; Zaniboni‐Filho, Evoy

doi:10.1080/10454430802329705

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…The combination of Artemia nauplii and other planktonic organisms provide a wide range of particle sizes with a particular velocity, colour pattern, and other factors that affect the predation ability of the fish fry (Busch, ). Live food presents visual or chemical attractants that stimulate the fish fry to recognize such particles as food (Fernando Beux & Zaniboni‐Filho, ; Tesser & Portella, ). Although the size of Artemia nauplii is adequate for most Astyanax altiparanae fry based on mouth size, some individuals are smaller and do not accept Artemia nauplii as a food source, consequently dying.…”

Section: Discussionmentioning

confidence: 99%

First feeding of diploid and triploid yellowtail tetra Astyanax altiparanae: An initial stage for application in laboratory studies

et al. 2017

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In this study, the aim was to establish a protocol for first feeding of diploid and triploid yellowtail tetra Astyanax altiparanae in laboratory conditions. The fry were fed with five different diets: (i) Artemia franciscana nauplii, (ii) plankton, (iii) dry food, (iv) Artemia franciscana nauplii + plankton, and (v) Artemia nauplii + plankton + dry food. Additionally, the growth and survival rates of diploid and triploid individuals were also evaluated. On day 10, the length of the fish between the treatments differed significantly (p = .0001) and ranged from 4.07 AE 0.06 mm (dry food) to 8.50 AE 0.64 mm (plankton + Artemia). The sizes of the fish increased with time, except for the fish fed with dry food. The survival rates were similar for the fish fed with the four diets and ranged from 80.7 AE 5.4% (dry food + plankton + Artemia to 92.0 AE 1.6% (plankton + Artemia), but differed from the fish fed with dry food (17.7 AE 5.8%, p = .0017). Diploids and triploids did not present differences on day 0 (p = .2252) and on day 10 (p = .4844) when the fish presented 6.77 AE 0.25 mm and 6.54 AE 0.15 mm respectively. Survival of diploids (87.3 AE 5.13%) and triploids (74.67 AE 2.30%) were also similar (p = .0285). These data are innovative and useful for establishing protocols for this species in both academic and applied sciences.

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Section: Discussionmentioning

confidence: 99%

First feeding of diploid and triploid yellowtail tetra Astyanax altiparanae: An initial stage for application in laboratory studies

et al. 2017

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The proteolytic digestive activity and growth during ontogeny of Parachromis dovii larvae (Pisces: Cichlidae) using two feeding protocols

Orlich

Chavarría

Rojas

2014

Fish Physiol Biochem

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The proteolytic digestive activity and growth of Parachromis dovii larvae during the ontogeny were evaluated in a recirculation system using two feeding strategies during a 28-day period. Larvae were reared using two feeding protocols (three replicates each): (A) Artemia nauplii (at satiation), fed from exogenous feeding [8 days after hatching (DAH)] until 15 DAH followed by nauplii substitution by formulated feed (20% day(-1)) until 20 DAH and then formulated feed until 28 DAH; (B) formulated feed (100 % BW daily) from exogenous feeding until 28 DAH. Levels of acid (pepsin type) and alkaline digestive proteases as well as growth and survival of larvae were measured along the feeding period. Survival was high and similar between treatments: 98.9 ± 0.0 for Artemia, 97.3 ± 0.0% for formulated feed. The specific growth rate for length and weight was higher in larvae fed with Artemia nauplii than in larvae reared with formulated feed: 3.4 ± 0.1 versus 1.8 ± 0.1% day(-1) for body length (P = 0.009) and 12.2 ± 0.1 versus 6.5 ± 0.3% day(-1) for body weight (P = 0.002). The acid and alkaline proteolytic activity was detected, in both treatments, from the beginning of the experiment, at 8 DAH. The total enzymatic activity (U larva(-1)) for acid and alkaline proteases was higher in larvae reared with Artemia after 12 DAH, whereas the specific enzymatic activity was similar for both enzyme types in the two treatments. The results suggest that P. dovii larvae were capable to digest formulated diets from the beginning of exogenous feeding and that they could be reared with formulated feeds. However, the formulated feed used should be nutritionally improved because of the poor growth obtained in this research.

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Zootechnical Parameters and Enzyme Activity in the Species Brycon moorei (Steindachner 1878)

David-Ruales,

Machado Fracalossi,

Collazos-Lasso

2023

Fishes

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Brycon moorei is an opportunistic omnivorous species. It is not known what its nutritional requirements are at any stage of its development; this study determined the influence of diet on the zootechnical parameters and enzyme activity of these fish. In a completely randomized quintuplicate design, an ad libitum dietary protocol was applied, which included Prochilodus magdalenae larvae, Artemia salina and balanced feed with increasing inclusion levels (35 to 55% crude protein (CP)). Larvae 22 h post-hatching (HPH), with an average initial weight and length of 3.07 ± 0.69 mg and 6.069 ± 0.22 mm, respectively, were seeded at a density of 17 larvae L−1 in tanks with an effective volume of 60 L. The main zootechnical parameters, water quality and enzyme activity were analyzed with respect to the experimental diets. Significantly, the best diet was that of 45% CP when compared with the other CP levels used. Specific serum enzyme activity was found from hatching, with fluctuating values, the specific pepsin-like activity started at 111 HPH. B. moorei larvae can receive a dry diet from 124 HPH and their requirement corresponds to 48.5% CP.

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Artemiasp. Proportions and Effects on Survival and Growth of Pintado,Pseudoplatystoma corruscansLarvae

Cited by 3 publications

References 21 publications

First feeding of diploid and triploid yellowtail tetra Astyanax altiparanae: An initial stage for application in laboratory studies

First feeding of diploid and triploid yellowtail tetra Astyanax altiparanae: An initial stage for application in laboratory studies

The proteolytic digestive activity and growth during ontogeny of Parachromis dovii larvae (Pisces: Cichlidae) using two feeding protocols

Zootechnical Parameters and Enzyme Activity in the Species Brycon moorei (Steindachner 1878)

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