This presentation addresses the management of fish hatcheries starting with some information on fish reproduction in general. Before addressing artificial reproduction, natural collection of wild fry or post larvae have been covered. The presentation includes sexual maturation and broodstock management including maintenance and replacement. Examples and hatchery technologies and so requirements have been included. Various …
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Permanent link to this article: https://fishconsult.org/?p=1620
Nov 21 2011
Fattening of red tilapia in pens in Colombia (in Spanish)
Credit: Glenda Vélez Calabria (Colombia). Corrales de engorde: las dimensiones de los corrales de engorde son 10 m x 5 m para un área de 50 metros cuadrados, altura promedio de 2 m, malla de polietileno negra con un ojo de malla de 15 mm y una densidad de siembra de 25 animales por metro …
Permanent link to this article: https://fishconsult.org/?p=1611
Nov 21 2011
Nursing of red tilapia in Cages and pens in Colombia (in Spanish)
Credit:Glenda Vélez Calabria (Colombia). Jaulas: jaulas rectangulares de 3 metros cúbicos elaboradas en policloruro de vinilo (PVC) en su marco inferior, en aluminio en su marco superior, malla de polietileno negra de 4 mm de ojo de malla para el levante de alevinos de tilapia roja. La densidad de siembra empleada en estas jaulas de …
Permanent link to this article: https://fishconsult.org/?p=1606
Nov 21 2011
Lighting for zooplankton during nursery and fattening stages of red tilapia in Colombia (in Spanish)
Credit: Glenda Vélez Calabria (Colombia) Se emplean lámparas artesanales por las noches con el objetivo de mantener el zooplancton en la superficie para aprovechar de esta manera la productividad del medio y usar menos cantidad de alimento concentrado durante las etapas de precría y engorde de tilapia roja. Note: We decided not to watermark the …
Permanent link to this article: https://fishconsult.org/?p=1600
Nov 21 2011
Artisanal unit for red tilapia rearing in Colombia (in Spanish)
Credit: Glenda Vélez Calabria (Colombia) Unidad de cultivo construída en madera en la Ciénaga Grande de Santa Marta (CGSM), la cual cuenta con jaulas de alevinaje, corrales de precría y engorde para cultivo de tilapia roja. La CGSM es una laguna costera ubicada en el norte de Colombia que se caracteriza por ser un sistema …
Permanent link to this article: https://fishconsult.org/?p=1592
Nov 20 2011
Farming of red tilapia when fed artificial feed supplemented by Azolla in Colombia (in Spanish)
Credit:Eudes Emilio Sanchez (Colombia) La foto corresponde a un estanques de produccion de tilapia roja, (Densidad de cosecha 4ind/m2, Tasa de conversiòn aprox 1,4:1, temperatura del aguau todo el año 25 – 32 ºC) alimentada con pienso ó balanceado, pero ademas se le a permitido que el espejo de agua este cubuierto un 40% con …
Permanent link to this article: https://fishconsult.org/?p=1568
Nov 14 2011
An artisanal fishing boat in Chile
Credit: Carolina Almonacid (Chile) This photo shows a type of fishing boat in Chile. The place is called Curamín that native language means “yellow stone”. Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or …
Permanent link to this article: https://fishconsult.org/?p=1494
Nov 13 2011
On-farm fish marketing (Paraguay) – in Spanish
Credit: David Martin Sykora (Paraguay) Esa foto es en un evento de cosecha de un productor, donde pone los peces a la oferta del publico presente. En mi país se impulsan solo dos variedades eróticas, las carpas y las tilapias. El ministerio impulsa mas las tilapias, por su facil reproduccion, rusticidad, y pronta cosecha. Note: We decided …
Permanent link to this article: https://fishconsult.org/?p=1449
Nov 12 2011
Overwintering facility for gilthead seabream and European seabass (Italy)
Gilthead seabream (Sparus auratus) and European seabass (Dicentrachus labrachus) although can relatively tolerate low temperature, but cannot survive severe cold which could be encountered in Europe during winter and hence overwintering facilities may be required. The photo shows a high curtain surrounding the earthen pond where fish are overwintered. The curtains can be managed (folded or …
Permanent link to this article: https://fishconsult.org/?p=1437
Nov 11 2011
The use of demand feeders in tilapia cages in a private farm in Maeklong River, Kanchnaburi province (Thailand)
Credit: Proyrat Chaowajaroenpong and Ong-art Kumprasert The use of demand feeders in feeding tilapia in cages in a private farm in Maeklong River, Kanchnaburi province, Thailand. Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture …
Permanent link to this article: https://fishconsult.org/?p=1399