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Technology is expected to significantly increase the world's fish diet

Prof. Berta Levbi-Sivan discovered a way to grow larger fish, an essential step towards feeding the expanding world population and won the "K" prize for scientific innovation this week.

Tilapia fish breeding farm in Honduras. Source: Brian Rossen.
Tilapia fish breeding farm in Honduras. source: Brian Rossen.

The expected increase in the world's population from 7.5 billion people to 9 billion people by 2050 increases the demand for sustainable food. A major source of food supply is in the field of aquaculture. While the field of wild fish has been in constant decline for the past 20 years, the field of aquaculture - raising fish in sea farms - is taking on a growing and vital role in food production, mainly due to its high availability and relative speed.

Prof. Berta Levbi-Sion, an aquaculture expert at the Faculty of Agriculture, Food and Environment at the Hebrew University of Jerusalem, identified tiny molecules called Neurokinin B (NKB) and Neurokinin F (NKF) that are secreted in the brains of fish and play a crucial role in their reproduction. However, since reproduction requires a lot of energy investment, the growth of the fish is slower. In order to solve this problem, Prof. Levbi-Sion developed molecules that neutralize the effect of NKB and NKF - thus preventing reproduction and leading to higher growth rates in the fish. These molecules can be given as a supplement to the fish food.

For example, young tilapia that were fed with the same unique molecule for two months gained 25% more weight than fish that did not receive the supplement. So far, NKB has been found in 20 different species of fish, indicating that a wide range of species will be affected by this discovery. The technology developed by Prof. Levbi-Sion and her team was sold by "Yishom", the technology development company at the Hebrew University, to AquiNovo, which continues the work of developing the technology to produce growth supplements for fish in fish farms at sea.

As it is the fastest growing area of ​​food production in the world, the water industry has the potential to provide more jobs. Today, in Europe, fish farming in sea farms constitutes about 20% of the fish market and about 85,000 people are employed in the field. As this field grows and develops, the number of jobs in the field is expected to increase significantly.

In recognition of her work, this week Prof. Berta Levbi-Sion won the "Kay Innovation" award for 2017.

The Kay Award was given to Prof. Levbi-Sivan as part of the events of the Board of Trustees of the Hebrew University. The Kay Awards ceremony has been held every year at the Hebrew University since 1994, and is awarded by Isaac Kay from England to students and academic, administrative and technical staff members of the university to encourage product inventions and innovative developments.

16 תגובות

  1. There is no impersonation Avi Blizovsky writes under his full name.
    I always write under my name - Abi - unfortunately it is a very common name, and there are several hundred thousand or millions of Abi's in our country and in the whole world.
    Avi Blizovsky knows my email because I always write it.
    I wrote the first answer on the subject of automatic censorship, and Avi Blizovsky, and the experiment you did also justified what I wrote.
    (So ​​there is no place for the sarcastic and stupid comments of the troll called "the gatekeeper".)
    I also wrote the comment to author A, about the vegetarianism that is not related to the topic, and I stand behind it - I'm actually not opposed to the vegetarianism per se - in my opinion, everyone has the right to eat what they want, but I oppose the propaganda and attempts at vegetarianism brainwashing that the followers of the vegetarianism spread at every opportunity, and in my opinion how Here is a place for this propaganda.

  2. Bouncer
    Thank you, now I notice that there is an Abby and an Abby Blizovsky and there is an element of impersonation here. Shavi Blizovsky will take care of that.

  3. I try to check the delayed responses as many times a day as possible, it doesn't always work out for me.
    I do not allow someone from the outside - at least not a human being - to determine what will be censored. This is an automated software.
    As for the hours, it's Google's consideration.

  4. I succeeded, my father, yes!! I was able to post my delayed response and I must say you have an amazingly blue head. In the original response I wrote that I would not have sex and feed my children and grandchildren with such fish, and you thought that you might be dealing with a sex maniac. I changed the suspect word to "food and feed" and came to Zion Goel and a response to Idan.

  5. I wouldn't be overly enthusiastic and I wouldn't eat and feed my children and grandchildren with fish that was suppressed by nature
    by chemical means. I would like to seriously check the effect of the aforementioned chemical substances on the person. Reminds me of the initial enthusiasm for the use of antibiotics in poultry fattening.

    June 15th, 2017

  6. To my father
    It's been about twenty hours since I wrote the comment, isn't it time to check what's going on there??
    L. A. Ben Ner
    That's exactly what I did. But it is not certain that others will be able to be so sophisticated.

  7. my father
    As someone who always makes sure to maintain a ratio of 50% nonsense and lies and 50% facts in all comments
    Please don't share advice on what to write and how to respond.
    You already wrote once on the website that veganism is a "big lie" and even though I asked you what you meant, you didn't answer.
    The truth from all your comments that I have read since then. I realized that I really don't care about the answer.
    I would appreciate it if you don't respond to what I write anymore and I won't respond to yours, we'll just ignore each other.
    I know that there is a very small chance that you will honor my request and most likely you will continue to troll. Nevertheless, try to consider what I asked.

  8. Lesbadramish Yehuda
    In the "website name" rubric, you can copy-paste and put the science website address that appears at the top of the screen.

    To my father
    The plight of the poor in the third world is not caused by scientific developments but by the government corruption in these countries.
    The heads of state steal the money from the public purse (including aid money from the developed countries) and deposit it in tax havens in those developed countries.
    It turns out that the developed countries benefit from their donation money to a greater extent than the third world countries to which they allegedly contribute.

  9. To my father
    What to do and I didn't find any unusual word so I didn't know what I sinned
    When the article is finally approved, show me what "disgusting" words you mean.
    But you can still take a risk and give an order to forward responses that come from certain IPs because we have a responsibility. Regarding newcomers or those who have not proven themselves in the past, continue with your method. It is impossible for you to allow someone from the outside to decide what will be automatically censored for you.
    There is also the problem that in the comments you require a website name. I think it's unnecessary. It is not possible that only people who have a site can comment.
    One last thing, if I may suggest, put the new articles in earlier, for example at 21:00. You don't have to wait until midnight.
    Other than that I love your site
    That's my opinion

  10. Lesbremish - I think there is an automatic sorting of the parent site on the network - they automatically filter certain words, and if your message contains such a word, it goes to HOLD.
    Therefore, if you want to write a very provocative word, for example some kind of curse, divide it in half or put a dash between the letters. (Of course, it is better to avoid such words, even if you really feel like it sometimes)

  11. It upsets me to read about scientific developments in the field of chemistry, agriculture, genetic engineering, and food, under the guise of an intention to "feed the hungry world".
    I don't like to generalize but I haven't seen any technological development whatsoever that helps hungry people in the third world, all the developments are only intended for the purpose of making more profits for farmers for the chemical food industry in the rich world and to bring the rich of the world more beautiful food products to decorate the gourmet tables in luxury restaurants.
    On the other hand, I have seen a film about the terrible damage that genetic engineering causes to poor farmers in the third world when it forces them to buy expensive genetically modified seeds that do not produce any more seeds in the next generation and forces them to also buy chemicals to treat those genetically modified plants, and worse that the properties of these genetically modified plants also harm In the heritage plants because their genes pass through pollination and change the heritage plants as well.

  12. The ecological cost of increasing the number of fish farms will be enormous. It's really not about growing sustainable food. Any growing of animal food always contains unnecessary waste of food. (in addition to the moral problems he raises). Enough protein can be produced from the plant for the world. As for marine cultivation, there are algae crops with very high amounts of complete protein and also rich in minerals with almost no ecological price.

  13. To my father Blizovsky
    The time has come for you to automatically forward without censorship the comments of people who have already proven themselves to be responsible in their comments. I don't understand why my previous comment is waiting for confirmation (and maybe it will wait too?)

  14. I wouldn't be overly enthusiastic and I wouldn't feed my children and grandchildren with fish whose sex drive was suppressed by chemical means. I would like to seriously check the effect of the aforementioned chemical substances on the person. Reminds me of the initial enthusiasm for the use of antibiotics in poultry fattening.

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