TILAPIA fish farming South Africa


TILAPIA fish – This is the common name but refers many fish species that fall under the Tilapia breed. The tilapia types that are indigenous to Southern African and are suited to aquaculture, or fish farming (mainly for food fish) are “Tilapia rendalli” and “Oreochromis mossambicus”

TILAPIA fish are found in almost every fresh water body in South Africa. They are found in the Limpopo River basin and along the eastern coastline right up to Port Alfred. Tilapia survive in water temperatures as low as 15°C and right up to 42°C. For aquaculture purposes they are happiest in temperatures from 28°C – 30°C.

Tilapia are simple to breed and are fast growing – ideal for fish farming. Tilapia’s taste is appreciated by many indigenous people. Many first time fish farmers are turning this hard fish into commercial farming operations – and this is being noticed by government.

There market for tilapia fish in South Africa is small – but there is a growing interest – the largest market is the USA. What does exist in South Africa is a market for inexpensive fish that are also high in protein – and the tilapia fits this criteria. Tilapia farming goes back in history – because of its protein and abundance.

Poular species of tilapia fish  for aquaculture.

  1. Oreochromis niloticus -Nile tilapia
  2. Oreochromis aureus -Blue tilapia
  3. Oreochromis mossambicus -Mozambique Tilapia

Hybrids of tilapia species have been grown and are used around the world.

China

Indonesia

Taiwan

Thailand

Most of the planets tilapia crop is is sent to the USA (95%).The rest of the worl is catching on – especially as the demand for to white fish increases. As the planet becomes more concerned with the environment and the state of the oceans, tilapia farming and tilapia cultivation becomes a viable alternative.

Tilapia Fish Farming – what you need to know to start a tilapia fish farm.

  •     What water is available and the continued supply thereof?
  •     Do you have a suitable site or dam?
  •     Is the place you wish to fish farm a suitable area for the species of fish – are they warm water or cold water fish?
  •     Where can you sell them are they popular do you have a market for the species you plan on farming?
  •     What is the availability of fish feed in your area? – Supply of fish food
  •     Can you get finger-lings (baby fish to farm with)?
  •     What are the legal aspects of fish farming in your area – do you have to have an impact study done – are you zoned for agriculture?
  • Do you know enough about aquaculture to make a success of it? – like any farming business – it requires a solid knowledge of fish farming practises. Tuition and Training in fish-farming – procedures and protocols, management, best practices. Tuition and Training in hatchery management.
  • How much money do you have – ponds, pumps, land – they all cost money – if you plan to make a profit you will need a good fish farming business plan. Can you get government funding or a government grant for fish farming? – Funding – government grants, private funders, partnerships
  • Do you have a fish slaughter plant near you – or how do you plan to sell the fish? -    Processing of fish.  Transportation of fish and fingerlings. Cost of transport.
  • Construction of the fish farm – who, where, what and how much?

You may wish to make use of a Fish Farming design and consultancy service.

Other fish used in fish farming include:

  • Common carp
  • Gold fish
  • African sharptooth catfish
  • Rainbow Trout

Interesting, and disgusting facts, about fish farming:

  • Parasites – Parasites nibble at the fish, which causes their scales to fall off and create  sores. In very crowded dams, lice can eat the fish right down to the bone on the face. This condition has become known as the “death crown.”

  • Up to 40 percent of farmed fish die while the aquafarmer is farming – The fish which are left are not fed before they are sent for slaughtering so that the water is not contaminated while transporting them. An example are Salmon, they are not fed for 10 days before transporting to the slaughter house.

  • 5 pounds of fish from the ocean are needed to produce just 1 pound of sea bass or salmon.
  • Slaughter plants do not stun the fish before slaughter…..The fish are fully conscious – their gills are cut, and they are left to bleed to death – the fish convulse with pain during this process.
  • Larger species of fish, like salmon, are killed by being struck the head using a wooden club – it is called a “priest,”. More often than not the fish is still alive as they are filleted. The smaller species of fish, are sometimes not even killed – they are packed on ice and are left to die – very cruel as fish are cold blooded and it takes a long while for them to die. Other times the water is just drained from the tank so the fish suffocate.

  • Many fish in a fish farm go blind from parasites – and as this does not affect the price nothing is done about it.
  • Larger fish eat the smaller fish in crowded fish tanks – A sorting process whereby the fish are poured through a series of grates sorts them into size – often the fish are hurt by this process – knocking off their scales and making them more vulnerable to disease.
  • Like chicken farming, aqua farms and intensive, high-volume systems use food, light, and growth stimulators to enhance production. A cocktail of drugs and genetic engineering are employed to increase growth rates and manipulate the fishes reproductive cycles.
  • With many fish farms placing as many fish as possible in the tanks and damns the fish are often hurt – fish need space to navigate and to use their senses – in overcrowded dams this is impossible and they often bang into each other, and into the sides of the cages or tanks – hurting their fins and scales in the process.

So – are you ready for fish farming? Whether you get a government grant for fish farming or a tilapia fish farm – youare going to have to know how to farm fish – and it is not all roses – you have to be pretty hard hearted to do it the way everyone else does it – and there is growing outcry about fish farming methods – maybe you can come up with a way to grow fish in a kind and respectful manner – or maybe, like most farmers it is just the money that counts!

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Koi fish Farming – types of Koi

Koi fish Farming – Types of Koi Fish – Some types of Koi fish from around the world.

Koi fish farming is a growing industry around the world. Many people in South Africa are now keeping Koi in ponds at home – they are not small fish and can grow up to 1/2 a meter. The more space they have in the koi pond – the bigger they will grow – and the healthier the koi will be.

Asagi Koi fish

Asagi are light blue koi, with red bellies. It’s Japanese name translates to “light blue” but is sometimes wrong and actually translates to “light yellow”.

A koi can live up to 30 years – and there is a legend about a Koi which lived 230 years – Wow!

Doitsu Koi fish

Doitsu-goi are German minnow Carp. They have large mirror-like scales along a thin line on their backs.

Goshiki Koi fish
Goshiki are very colourful koi fish, having colours in red, brown and white, with blue highlights.

Koi are bred for their colours and markings.

Hikari Koi fish

Hikari, or Hikari-moyomono are either koi with two metallic colours, or a koi with coloured markings on the metallic skin.

Kawarimono Koi fish

This refers to all Koi that cannot be distinguished into categories or in other words, aren’t clearly identified by markings or colours. Also known as kawarigoi.

Very large Koi are called Jumbo Koi

Kōhaku Koi fish

The name “Kōhaku” translates to “red and white” and was the first ornamental koi variant in Japan, established in the late 19th century. Their skin is white in colour, and they are covered with large red markings on top.

A jumbo koi can weigh up 60 pounds.

Kumonryū Koi fish

Kumonryu are black koi with distinctive white markings, often thought to be reminiscent of Japanese ink paintings of dragons. They are known for changing colour with seasons.

Ochiba Koi fish

Ochiba, in Japanese, means “fallen leaves”. They are light blue koi with patches of yellow, which resemble autumn leaves.

Koi fish are sociable and get on well with oter types of fish

Orenji Ōgon Koi fish

Ogon Koi generally refer to Koi with only one colour. However, they have metallic scales, the most common colours being gold, orange (like the koi to the left) and platinum. The Japanese koi name means “Gold”, however, on rare occasion they can be found in cream colours.

Koi fish keep moving most of the time.

Shūsui Koi fish

Shusui translated from Japanese, means “Autumn Jade” and were created by crossing Japanese Asagi with German mirror carp, in 1910. This koi only has a single line of scales along its head to tail.

Koi fish are very expensive in comparison to other types of fish – growing Koi in a pond needs time and attention – and diet is very important.

Koi can be bough from pet shops – but the best is to find a Koi breeder.

Tanchō Koi fish

Any fish with a distinctive red patch on it’s head is a Tancho. It is named after the Japanese crane, which also has a red spot on its head. There are several types, including Tancho Showa, Tancho Sanke and Tancho Goshiki.

Young Koi can be kept in a fish tank – but after a year you will need to move them to a Koi pond.

Utsuri Koi fish

Utsuri, or Utsurimono, refer to black koi with red, white or yellow markings. Utsuri specifically means “print” and refers again to Japanese ink stains.

Sloping sides on a Koi pond are not a good idea – it is difficult to get in and out and you cannot grow plants if there is not step in the koi pond. Koi fish farms use large dams to grow koi fish in – with water filters and pumps to circulate the water and keep the oxygen levels up. Goldfish farming also uses large pumps and filters.

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