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Registros recuperados: 122 | |
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Keim, Albert. |
Recientes problemas provocados por epiemias de infecciones de Ichthyophthirius multifiliie en la cría de bagre negro (Rhandia sapo) cultivado por el Departamento de Acuicultura del INAPE de Uruguay, y el conocimiento de que todos los piscicultores tienen problemas con los parásitos, constituyeron la base y antecedente para el inicio de un programa de investigaciones parasitológicas. Este programa incluyó. 1) Disección de bagres capturados en Laguna de Sauce y colecta de parásitos. 2) Disección de bagres cultivados en el Laboratorio y en los estanques de INAPE, y colecta de parásitos. 3) Identificación de los parásitos recolectados. 4) Elaboración de un manual que recopila los métodos más comunmente utilizados en parasitología e histopatología en la... |
Tipo: Report |
Palavras-chave: Fish diseases; Parasitic diseases; Fish culture; Parasitology; Histopathology; Manuals; Ichthyophthirius. |
Ano: 1982 |
URL: http://hdl.handle.net/1834/4913 |
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Varela, Zoel; Fischer, Knud; Chediak, Gustavo. |
Se describen las primeras experiencias llevadas a cabo con el fin de determinar tasas de crecimiento del bagre negro (Rhamdia sapo) en condiciones de cultivo. En una primera experiencia se sembraron alevines (10 - 50 g) a densidades entre 25.000 y 60.000 ejemplares por hectárea, densidades normalmente empleadas para las últimas fases de alevinaje. Se estableció la relación entre el tamaño inicial y la tasa específica de crecimiento (TEC) así como también se determinó el crecimiento diario absoluto para los distintos tamaños. En una segunda experiencia se sembraron peces (112 g) a densidades de 6.000, 8.000 y 10.000 ejemplares por hectárea para realizar pruebas de producción. Esta experiencia se llevó a cabo en las estaciones de otoño e invierno. El... |
Tipo: Report |
Palavras-chave: Growth rate; Fish culture; Freshwater aquaculture; Feed conversion rate. |
Ano: 1982 |
URL: http://hdl.handle.net/1834/4914 |
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Anthouard, M; Paris, J. |
Movement activity and localization of food were studied dynamically with the objective of establishing the capacities of behavioral adaptation of the young Dicentrarchus labrax faced with a novel situation. The role played by previous rearing conditions was demonstrated, the level of stimulation being a sensitive intervening factor (currents associated with the food). The data show the favourable effects of such treatment, and are in agreement with work carried out on higher vertebrates, which have brought to light the importance of early stimulation in behavioral ontogeny which respect to emotionality as well as capacities of adaptation in subjects reaching adulthood. |
Tipo: Text |
Palavras-chave: Dicentrarchus labrax; Serranidae; Pisces; Juveniles; Stimuli; Locating; Locomotion; Fish culture; Nutrition; Ethology. |
Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/1983/acte-1253.pdf |
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Anyanwu, P.E.; Awa, J.N.. |
Polyculture trial of selected cultivable fin fishes was conducted at the Institute’s experimental fish farm Ikoyi, Lagos from April 1983 to January 1984. The species, Mugil spp; Tilapia spp; Hemichromis fasciatus and Elops lacerta gave a total annual production range of 1219 kg to 1441 kg per hectare (extrapolated). Tilapia species had the highest growth potential constituting 80% of the total harvest. Supplementary diet used was food left over (waste) from selected big hotels in Lagos. Elops lacerta (predator) recorded the highest average body weight of 415.88g while the lowest weight 62.14g, was recorded for Mugil spp. Tilapia spp and Hemichromis fasciatus had average body weights of 72.5g and 6.7 0g respectively. |
Tipo: Report |
Palavras-chave: Fish culture; Polyculture; Fish culture; Http://aims.fao.org/aos/agrovoc/c_2918. |
Ano: 1988 |
URL: http://hdl.handle.net/1834/2390 |
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Hill, B. |
It is over 30 years since the development of fish tissue cultures led to the first confirmation of a viral infection in fish. Since that time, tissue cultures and, more usually, monolayer cell cultures, have been developed from a large number of fish species and have enabled the isolation from a large number of fish species and have enabled the isolation and study of 30 or so viral infections of fish, predominantly those of freshwater, catadromous and anadromous species, and particularly temperate species in the northern hemisphere. However, evidence for numerous other viral infections in fish has also been obtained without successful virus isolation through the visualisation of virus particles by electron microscopy or through experimental transmission of... |
Tipo: Text |
Palavras-chave: Tropical environment; Fish diseases; Fish culture. |
Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/1989/acte-1502.pdf |
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Debas, L; Fostier, A; Fuchs, Jacques; Weppe, M; Nedelec, Georges; Benett, A; Cauty, C; Jalabert, B. |
The Polynesian grouper, Epinephelus microdon , was chosen as an experimental model in order to investigate about factors controlling sexuality in groupers. |
Tipo: Text |
Palavras-chave: French Polynesia; Epinephelus microdon; Sex ratio; Sexual maturity; Sex hormones; Sex determination; Sex; Fish culture; Endocrinology; Reproduction; Sex reversal; Animal morphology. |
Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/1989/acte-1439.pdf |
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Registros recuperados: 122 | |
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