A new report by the University of Queensland says that the male bettacum could be adapted to produce more eggs and produce more sperm, enabling more efficient breeding and better fertilisation of fish.
The report, ‘Biodiversity and Future of Aquaculture: Towards a Bio-Based Future’, suggests the male might produce more offspring and produce a greater percentage of fertilised eggs, but the eggs might be unable to survive and thus unable to be harvested by aquaculturists.
Dr Mark Wilson, who co-authored the report, said the males could also be more effective fertilisers, increasing the fertilisation rate.
He said the male could potentially produce more embryos per day, potentially increasing the potential for larger families.
Dr Wilson said the new species was not the only possibility for using male betta as a bio-feedstock for fish.
“The males have a great ability to use the female’s body fluids to fertilise the eggs and sperm,” he said.
“We have already found that male betty eggs can be fertilised using the female body fluids.”
But, they have to be quite big.
We have been able to get them to fertilize with a little bit of water and we could use that to fertiliser the males.
“The male and female of the species are known to mate for life, but only the male’s egg could be fertilized.
However, the researchers said the females could be developed into more fertile eggs that would produce more males and females, increasing fertilisation rates.
They also suggested that males could be modified to be more productive and be more successful fertilisers of fish eggs.
Dr Michael Wilson said he was encouraged by the report’s findings.”
It’s really interesting to see that it’s possible to have an adult male and a juvenile female that can fertilise eggs.
“And, I think that’s exciting to see.”
There’s been a lot of discussion in the past couple of years that there are some really good options out there for male betties.
“For instance, there’s been research from Queensland and NSW showing that they can produce eggs in the laboratory and then you can put them in aquaria, fertilise them, then you have to harvest the eggs, and then the female can have more babies.”
The research team, from the Queensland and New South Wales Department of Primary Industries, has already taken betta embryos to the laboratory.
They have also produced embryos that can be grown and then fertilised, which is how they developed the male.
The University of South Australia also used female betts to fertilised egg cells.
“I think this is a really interesting piece of work that has been done on bettacya,” Dr Wilson said.
He hoped the research would lead to improved methods for using betta eggs in aqua-based farming systems.
“As far as I’m aware, there are no other species that produce eggs that efficiently and efficiently fertilise, fertilising fish, and I think there’s some potential for it to be a useful product for aquacultural applications,” he added.
“If it becomes widely used, I would hope that it would also lead to some other species being developed.”
Topics:biotechnology,biotechnology-and-technology,science-and.science-fiction,bioproducts,australiaFirst posted May 10, 2019 09:31:42Contact Anna CrouchMore stories from South Australia