Results 151 to 160 of about 1,945 (186)

Food consumption and gastric emptying of Farfantepenaeus paulensis

open access: yesAquaculture, 2005
Abstract The effect of Farfantepenaeus paulensis body weight (BW) on food consumption (FC) and gastric emptying (GE) was determined for four shrimp size classes (SC) under laboratory conditions: SC 1  = 1.36 ± 0.43 g (mean wet BW ± S.D.); SC 2  = 2.99 ± 0.47 g; SC 3  = 5.55 ± 0.52 g and SC 4  = 7.23 ± 0.50 g. FC increased gradually with shrimp size,
R. Soares   +3 more
openaire   +2 more sources

Long-term ammonia toxicity to the pink-shrimp Farfantepenaeus paulensis

open access: yesComparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2009
Juvenile pink-shrimp Farfantepenaeus paulensis were exposed (75 days) to NH(3) (0.016-0.287 mg L(-1)) under static condition with water renewal every 24h. Experiments were performed at 20 degrees C, at a water salinity of 15 ppt, and at pH 7.8. Endpoints analyzed were survival, growth and predation rates. After 75 days of exposure, survival was >or=90%
Kleber Campos, Miranda-Filho   +3 more
core   +4 more sources

Feeding rhythms and diet of Farfantepenaeus paulensis under pen culture in Patos Lagoon estuary, Brazil

open access: yesJournal of Experimental Marine Biology and Ecology, 2005
Abstract The feeding habits of Farfantepenaeus paulensis under pen culture in the Patos Lagoon estuary (Brazil) were studied. A total of 1074 shrimp had their stomach contents analyzed. Samples were taken bi-hourly over a 24 h period at about 10 day intervals during 2 months. F. paulensis did not exhibit strict feeding periodicity (except at D 21–
R. Soares   +3 more
openaire   +2 more sources

Influence of artificial insemination on the reproductive performance of Farfantepenaeus paulensis in conventional and unisex maturation systems

open access: yesAquaculture, 2004
The application of artificial insemination techniques as a way to overcome the lack of mating of the closed thelycum Farfantepenaeus paulensis under large scale conditions is reported. The performance of artificially inseminated females (49.4 ± 11.6 g) maintained in conventional versus unisex maturation systems was compared.
Silvio Peixoto   +4 more
openaire   +2 more sources
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Effects of captivity and eyestalk ablation on antioxidant status of shrimps (Farfantepenaeus paulensis)

Aquaculture, 2004
The effects of 45 days of captivity and eyestalk ablation on the activity of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) as well as the levels of total glutathione content (TGSH) were evaluated in shrimp hepatopancreas (Farfantepenaeus paulensis).
Eduardo A. Almeida   +3 more
openaire   +2 more sources

Effects of age and size on reproductive performance of captive Farfantepenaeus paulensis broodstock

Aquaculture, 2004
Abstract The performance of captivity-reared Farfantepenaeus paulensis broodstock of different ages (10 and 16 months old) and sizes were compared in two separate 30-day-long trials. For each trial, groups of 20 males and 30 unilaterally eyestalk-ablated females were stocked into two 10-m2 maturation tanks.
Silvio Peixoto   +5 more
openaire   +1 more source

Influence of biofilm on the production of Farfantepenaeus paulensis in pens in the Patos Lagoon estuary

Aquaculture International, 2018
The objective of the present work was to determine the influence of artificial substrates that increase the area for biofilm development on the production performance of Farfantepenaeus paulensis juveniles in pens. Shrimp were stocked at a density of 20/m2 in pen structures (bottom area = 50 m2) that were installed in the Patos Lagoon estuary.
Eduardo Luis Cupertino Ballester   +5 more
openaire   +1 more source

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