Poging GOUD - Vrij
Reared In Brackish Water, And Worth Its Salt!
Farmer's Weekly
|Farmer's Weekly 9 June 2017
Brackish water is unsuitable for irrigation, drinking or stock watering. So could such water be used for aquaculture? With tilapia, the answer is undoubtedly yes.
All species of tilapia are euryhaline (salt-tolerant) and it is well known that when rivers flood, Mozambique tilapia (Oreochromis mossambicus) may enter the sea and pass into other estuaries along the coast, increasing the range of this species.
The Oreochromis genus, which includes Mozambique and Nile tilapia, can tolerate salinity of up to 20 parts of salt for every 1 000 parts of water (that is, 20 ppt), with a few days’ acclimation. Unlike Nile tilapia, Mozambique tilapia have been recorded living at salinity levels even higher than that of seawater, which averages 34 ppt.
Dit verhaal komt uit de Farmer's Weekly 9 June 2017-editie van Farmer's Weekly.
Abonneer u op Magzter GOLD voor toegang tot duizenden zorgvuldig samengestelde premiumverhalen en meer dan 9000 tijdschriften en kranten.
Bent u al abonnee? Aanmelden
MEER VERHALEN VAN Farmer's Weekly
Farmer's Weekly
Farmers 'unilateral victims' of climate
Gyeongbuk Provincial Council member Choi Taerim has demanded immediate and substantial support for apple farmers in the South Korean province, urging immediate measures for apple farmers affected by heat damage be implemented, The Asia Business Daily recently reported.
1 min
November 21-28, 2025
Farmer's Weekly
Top agri workers celebrated in the Western Cape
Shannon Robertson, assistant livestock manager at Boschendal near Franschhoek, was crowned the overall winner of the 2025 Western Cape Prestige Agri Awards, held in Durbanville.
1 min
November 21-28, 2025
Farmer's Weekly
Smart dairying: running Jerseys on pasture
The dairy farming sector has seen innovation in milk parlour and cow comfort technology that have allowed farmers to not only yield higher volumes, but extend the productive lifespan of their cows. Albrecht de Jager told Henning Naudé about his approach to maintaining a pasture-raised Jersey herd while utilising precise data measuring technology to ensure quality milk output and optimal cow comfort.
6 mins
November 21-28, 2025
Farmer's Weekly
High-performance dairy farming in the Eastern Cape: the Rufus Dreyer approach
Dairy farming is often described as one of the most technically demanding and strategically complex branches of agriculture.
6 mins
November 21-28, 2025
Farmer's Weekly
Design your stables and camps to assist in AHS control
Keep horses away from areas where disease-carrying midges multiply, like natural pools, lakes, streams and dams, advises Dr Mac.
2 mins
November 21-28, 2025
Farmer's Weekly
The rolling chant that has echoed through SA over the past 30 years
Johan van der Nest is renowned in auction circles and was the first freelance stud-stock auctioneer to begin operating in South Africa.
10 mins
November 21-28, 2025
Farmer's Weekly
Flight from the Red Army
The fall of the Third Reich in 1945 was defined by the Red Army's brutal invasion of Germany. Mike Burgess tells how the Hoppe family trekked from Finowfurt near Berlin to Preetz in Schleswig-Holstein to escape the brutality.
6 mins
November 21-28, 2025
Farmer's Weekly
How to plan a pre-sale feeding programme
Proper feeding of animals before a sale can help producers catch the eye of buyers and increase profits, but it is important to choose the right ration.
8 mins
November 21-28, 2025
Farmer's Weekly
How women are transforming coffee production in Kenya
A group of Kenyan smallholder women farmers are transforming the country's high-value coffee sector by pooling their resources.
5 mins
November 21-28, 2025
Farmer's Weekly
Tough times ahead for SA's grain farmers
Grain farmers face a difficult year ahead with lower grain prices and high production costs
3 mins
November 21-28, 2025
Translate
Change font size