Rydawi Fish Farms
At Rydawi we are constantly innovating, developing and improving what we do. Our latest project involves the development and prototyping a new filter system for simpler construction, lower cost logistics, ease of operation and efficiency. These filters will allow Rydawi to offer a “Plug and Play” system to the market. The FarmInABox System will become the simplest system in the market to own and operate as a single system or as a multiple system commercial farm. The filters have been going through testing, modification and design for the past few months and those of you who have visited us recently will have seen these in action at the farm. We will be installing a number of these units to collect the data required before officially launching them to our clients. Please continue to watch this space.
New “Plug and Play” prototype filters being tested at the Rydawi Farm
Rydawi’s reach into Africa has expanded into Gabon. During month, two systems were sold to a client who currently runs a Dairy Farms.
The team have set up a hatchery and two tank systems at a client for an indigenous fish hatchery, where fish from the current dam site Oreochromis mossambicus will be bred and the fingerlings will be grown out to restock the dam. There will be more on this project in the spring when the systems will have stock and the breeding will begin. Projects such as these will assist in maintaining gene pools of pure strain indigenous species and with providing great fishing for our anglers.
Greenhouse and fry rearing tanks at an indigenous fish hatchery in Gauteng.
Greenhouse and fry rearing tanks at an indigenous fish hatchery in Gauteng.
Jack is still in China, and we will give you news of his activities in the June edition.
International News
Tilapia production grew 223 pc in ten years in Brazil
Thursday, April 27, 2017, 23:50 (GMT + 9)
Between 2005 and 2015, the production of the most farmed fish in Brazil, tilapia (Oreochromis niloticus), experienced a 223 per cent growth thanks to the modernization and intensification of its production, both in cages and in containers dug in the ground.
In 2005, tilapia production in the country was 67,850.50 tonnes, according to the Brazilian Institute of Environment and Renewable Natural Resources (IBAMA). Already in 2015, the Brazilian Institute of Geography and Statistics (IBGE) estimated that the production of this species reached 219,329 tonnes, reported EMBRAPA Fisheries and Aquaculture.
These data were collected during the performance of the project "The socioeconomic repercussions of tilapia farming in Brazil" led by EMBRAPA Fishing and Aquaculture (TO) and its partners, who visited seven major production hubs of this species: Oros y Castanhao in Ceará ; Sub-medio y Bajo San Francisco, on the border of the states of Bahia, Pernambuco and Alagoas; IlhaSolteira in the border of San Pablo with Mato Grosso del Sur; the northern and western regions of Paraná and Valle Bajo del Itajaí, in Santa Catarina.
The favourable climate, the resistance of the species to accept different production systems and the high demand of the products, in addition to the good results of intensive farming, are some of the factors that have contributed to consolidate the production of tilapia in the country.
The regulation of the use of public waters for the intensive culture of fish in cages promoted tilapia farming, a species that concentrates 90 per cent of the requests of aquaculture sites in the country.
"The concession of the use of water from lakes and hydroelectric dams has allowed aquaculture producers to start production without having possession of these waters, which accelerates the growth of this industry in the country," explains veterinarian doctor Renata Melon Barroso, coordinator of the project led by EMBRAPA.
The study also found that there has been an increase in the technicality of production and a greater professionalism of the producers in many hubs, which contributed to a substantial increase in productivity.
"The use of equipment, associated with management practices to control the farming parameters, has contributed to increase the density of cultivation also in the excavated ponds, increasing the productivity that, in the hubs that are based on the use of nurseries on land, as in Paraná and Santa Catarina, jumped from 30 to 50 tonnes per hectare," says Barroso.
According to the expert, the increase in productivity can be attributed to the greater professionalism of fish farmers, who understand that in order to be competitive and stay in business they must have control of their operations and use cost recording mechanisms, with great care of management and water quality.
The profitability of tilapia, which can vary from 10 to 20 per cent for the producer, has led to greater investment to buy equipment in order to improve water quality and automate farming, as well as for high quality food.
At the most advanced hubs, scientists have observed the use of aerators - ventilators that increase the amount of oxygen in the water and allow more fish to be raised in the same space - as well as automatic feeders, classifiers and counters, among other equipment.
The World Production of Tilapia
You Tube presentation
Make yourself a cup of coffee and spend 15 minutes watching this interesting presentation on Aquaculture.
Contact Us
Please contact us if you need any assistance with your fish farming projects, purchase tanks or fingerlings, or would like to visit the farm in Muldersdrift, Johannesburg. The next training programme is the 10 – 14 July 2017 and the 4 – 8 September 2017.
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The Rydawi Team
May 2017
(this email has been sent to you as at one time you engaged with Rydawi or David Fincham Aquaculture. If you no longer wish to receive our monthly newsletter let us know)
073613 3670
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Plot 219, Ibis Road, Muldersdrift