Agricultural giant since 1983

Chapter 150 Aquatic Institute
"Oh, Xiao Li, look at you, every time you come here, you send a lot of things, how dare I accept them!" At first, Professor Xiong tried to evade them, but after witnessing the effects of these two ultrasound machines with his own eyes, he refused to accept them. I can't say it anymore, this thing is really easy to use.

"Professor Xiong, with these two pieces of equipment, we will be able to breed our own lean-meat pigs as soon as possible, which can be regarded as my contribution to the country!" The efficiency of hybrid rice, and you are not short of money, can you give it away?The answer is obvious.

"And I'm also beneficial. Your breeding experience is much richer than Xiao He and the others. If you have summed up a useful method, can you teach Xiao He? I still have an advantage!" Li Lei persuaded Finally, Professor Xiong accepted it.

"As long as I can find something, I will definitely tell you." Professor Xiong also repeatedly assured Li Lei that he would never hide his secrets.

"Then Xiao He, you can stay with Professor Xiong for a few more days, and you can go back when you think it's okay!" Li Lei left He Zhanhai again.

It was getting late now, so Li Lei planned to treat them to a meal. This time, Professor Xiong said he would not agree to anything, and insisted on treating them himself.

Li Lei really couldn't refuse, so he had to go to a nearby farm with Professor Xiong. The owner of this household is an old friend of Professor Xiong. In charge of the spoon, the local dishes of Hubei are very distinctive.

"Xiao Li, how many days are you staying in Wuhan this time? Is there anything else you need to do? If there is anything I can help, please don't be polite!" After drinking a few cups, Professor Xiong asked Li Lei again. Dao, if you owe so much favor, if you don't pay back a little, how can you be ashamed to meet people next time?
"To tell you the truth, there really are! My feed factory has recently developed a new product - fish feed. Wuhan is close to the Yangtze River and there are many farmers. This product is suitable for the WH market, so I want to come to Wuhan first. For promotion, if you want to promote pig feed, you need to find an expert like you, and if you want to promote fish feed, then you must go to the Aquatic Institute! So I want to ask, do you have any acquaintances in Aquatic Products? Can you recommend it for me?" Li Lei laughed said.

The Institute of Aquatic Biology is the Institute of Hydrobiology of the Chinese Academy of Sciences. It is located at the foot of Luojia Mountain and on the shore of East Lake. It is a comprehensive academic research institution engaged in the research of inland water life process, ecological environment protection and biological resource utilization.

The strategic positioning and development goals of the Institute of Aquatics are to meet the country's major strategic needs in water environment protection, sustainable fishery development, and microalgae bioenergy utilization, and to focus on the fundamental aspects of inland water body life processes, ecological environment protection, and biological resource utilization. , Strategic and forward-looking major scientific and technological issues, focusing on major theoretical innovations and core technology breakthroughs, strengthening the extension of the innovation value chain, and playing a demonstration role in the fields of water environmental protection, freshwater fishery and microalgae bioenergy.

It sounds complicated, but the most closely related to the purpose of Li Lei's trip is their research on freshwater fishery, among which the breeding and propagation of various economic fish species is naturally indispensable.

To put it simply, they are located at the top of the aquaculture industry, and they breed high-quality fish species. Like Professor Xiong, they have great influence on fish farmers, as long as they can be persuaded to use their own factories to develop new ones. Fish feed, then those farmers will learn from others, which can save a lot of publicity costs.

"I know!" Professor Xiong was very happy, and I can return some favors, "You want to use your fish feed for aquatic products? Then you have to convince Liu Jiankang, the leader of the ichthyology group! I will have a meeting with him I met you when you were young, and you can talk, and I will take you there tomorrow!"

Both pigs and fish belong to the category of biology, and they sometimes hold meetings together, while Liu Jiankang and Professor Xiong are both in Wuhan, and as they meet more often, they will definitely have some friendship.

Early the next morning, Professor Xiong took Li Lei straight to the foot of Luojia Mountain, registered at the Institute of Hydrobiology of the Chinese Academy of Sciences, and then went in to find Liu Jiankang.

"Hello, Commissioner Liu, I brought a child to see you this time!" Liu Jiankang was elected as a member of the Chinese Academy of Sciences in 1980, and he will be an academician in the future, so Professor Xiong called him that.

Committee member Liu asked them to sit down, and then poured water for them with his own hands, "Come on, sit down, Lao Xiong heard that your Hubei white pigs are promising? We have made another big achievement in the field of economic animal breeding in Wuhan!"

"Commissioner Liu, I'll do it!" Li Lei asked an academician to pour water for him?Hastily took the kettle from Commissioner Liu.

Regarding the contribution of Commissioner Liu, it can be said clearly in one sentence that China's freshwater fish farming output exceeds 2000 million tons, accounting for nearly half of the global production. Scientists like Commissioner Liu have domesticated the four major family fish.

Commissioner Liu studied in the Department of Biology, Faculty of Science, Soochow University in the Republic of China. After graduation, he entered the Institute of Zoology and Botany, National Academia Sinica as a graduate student of Wu Xianwen, engaged in ichthyology research.

Wu Xianwen is also the former director of the Institute of Hydrobiology. He was elected as a member of the department in 65. His main achievements are the compilation of works on fish taxonomy and aquaculture such as "Chinese Cyprinidae", "Chinese Freshwater Fish Aquaculture", It is the pioneer of fish research in my country.

It's a pity that Mr. Wu passed away last year, and Li Lei had no chance to express his admiration to Mr. Wu in person.

After the victory of the Anti-Japanese War, Commissioner Liu went to the United States for exchange and study for one year, and returned to China before the founding of the People's Republic of China. In 1950, the Institute of Hydrobiology was established, and he served as a researcher.

At the beginning, his research direction was also fish taxonomy. During the investigation of Liangzi Lake, he learned that there were group-headed bream in the lake, but there was no document record before.This kind of fish was later confirmed as a new species and was named "Tuantou bream", that is, Wuchang fish. If Commissioner Liu hadn't named it, there would be no such phrase as "only drink Changsha water, but also eat Wuchang fish".

After that, it took 20 years to compile "Fishes of the Yangtze River", which has more than 40 words and records the growth habits of more than 200 species of fish. This is China's first monograph on the ecology of freshwater fish.

Later, in order to solve the problem of people’s difficulty in eating fish, he turned his research direction to fish farming and ecological research. Fishing facilities, control of ferocious fish, and reform of fishing techniques were implemented. The fish output of Donghu Lake increased by an average of 70% every year for seven consecutive years, from 7 tons in 23.5 to 1971 tons in 180.

After investigating the distribution of fish spawning grounds in the Yichang section of the Yangtze River, artificial insemination and hatching of grass carp and silver carp were successfully carried out; In the future, the artificial breeding of China's "four major family fishes" laid the foundation.

When Li Lei was pouring water, Professor Xiong also briefly introduced his situation to Committee Member Liu, "Xiao Li graduated from the Agricultural College, and now responding to the call of the country, he returns to the village to lead the villagers to work hard to get rich. He also has his own experience in breeding. Recognition, gave me a lot of inspiration!"

Professor Xiong enthusiastically talked about the role of computer software in breeding, and Commissioner Liu was also very curious, "This should be a specific application of quantitative genetics. We have a few computers, but we don't have such easy-to-use software. , When do you have time to go and see where you are? See if it can be used in fish breeding."

The scale of the Institute of Hydrobiology is much larger than that of Professor Xiong's small workshop, and the funding is even higher by several orders of magnitude. That's why we have the money to buy computers.

"You have to ask Xiao Li about this. I only know it but don't know why. I can barely use it, and I don't know much about the deeper theory!" Professor Xiong actually doesn't understand, he just wants to create a new world for Li Lei. Just a chance to show your face.

"It is true. Quantitative genetics provides a theoretical basis for breeding, but in practical application it is too much to test the mathematical skills of breeders; so European and American countries have begun to try to introduce computers to handle complex calculation processes. After I learned this information , and cooperated with a high-achieving student who graduated from the Department of Mathematics of Zhejiang University to develop several softwares for breeding!" Li Lei introduced the background to Committee Member Liu.

Then I formally answered Committee Member Liu's question, "The data involved in fish breeding and pig breeding are different, and the focus of attention is also different, so it is definitely not possible to use the software directly; but it can be used as a reference. Experts from the Department of Computer Science come over, you just ask them to write software for you.”

Li Lei did not recommend Shi Yuzhu, because the Shuisheng Institute is not far from Wuhan University, and Wuhan University's computers are also very strong. Although Lei Jun will not enroll until next year, it will definitely not be a problem to find a few people to help write software.

"We have a cooperation with Wuhan University. Is it convenient to go and have a look now?" It would be great if this software could be introduced into fish breeding. Thinking of this, Commissioner Liu couldn't sit still.

"It's convenient, of course it's convenient." Professor Xiong looked at Li Lei, and immediately agreed when he saw him nodding slightly.

Commissioner Liu contacted familiar teachers from the Computer Department of Wuhan University, and several of them went to Professor Xiong's place to watch him operate the software for a demonstration. Whether it was the calculation speed or the accuracy of predictions, Commissioner Liu was very excited, "This software is really It’s easy to use, and we need to use it in our aquatic institute! Lao Zhan, isn’t it complicated to make?”

"It's not complicated, the key is still on your side. You give the formula and requirements, and we just do it! This kind of software with relatively simple requirements does not take much effort to make! As long as the formula is accurate and the requirements are clear, it will take a week. It can be done!" The teacher Zhan thought for a moment and gave an affirmative answer.

"Okay, okay, I'll write out what you want when I get back. If I don't see the software after a week, I'll never end with you!" Commissioner Liu has been working on freshwater fish breeding for many years, and what fish breeding depends on? Data, how to calculate and analyze by heart.

"Come on, let me show you this. The ultrasonic instrument is used to measure whether sows are pregnant, as well as key data such as backfat thickness. It was also donated by Xiao Li. Now I am learning how to use it! Xiao He, to Committee Member Liu Show me!" Professor Xiong liked He Zhanhai very much, and let him show his face in front of the faculty members.

In China, as long as you are engaged in research, there is no harm in getting to know more members of the academic department. The higher the level, the more so. Although the research direction of member Liu is not the same as that of He Zhanhai, they both belong to the biological category. We met at a meeting.

"Okay, you old bear, you made so many good treasures without making a sound. I think you came here to show off to me today!" The effects of these two devices, even Liu Jiankang, a member of the academic department, are a little jealous.

After reading it, he immediately asked, "What is the detection ability of these two ultrasonic instruments? Can you see the composition ratio of fish eggs and fish muscles?"

Commissioner Liu has also seen the benefits of these two devices. If they can be used for fish breeding, they will definitely save a lot of time, money and material resources just like those computer software.

But freshwater fish are much smaller than pigs, so it is a test of the accuracy of the ultrasonic instrument.

"It's still relatively difficult." Li Lei replied that fish eggs are still too small compared to pig fetuses, and the ultrasonic instruments currently on the market are relatively difficult to detect, and they certainly cannot meet the needs of Commissioner Liu.

"That's it!" Commissioner Liu sighed, his regret was beyond words.

"However, the development of electronic technology has been rapid in recent years, and the accuracy of the ultrasonic instrument we use has been greatly improved compared with the previous two years! Maybe it will come in handy in two years! I will help you pay attention to this information , I will let you know as soon as there is a breakthrough!" Li Lei comforted.

In fact, the detection of fish roe using an ultrasonic instrument has also been realized in later generations, especially in the farms that specialize in breeding sturgeon to produce caviar. The ultrasonic instruments used in these farms have a resolution of 0.1 mm. The absence of fish eggs and the size of fish eggs can be found by ultrasound examination.

In the future, there will be a domestic company called Sturgeon Technology, which is a scientific and technological agricultural enterprise mainly engaged in sturgeon breeding, processing and export sales. In 80, it maintained the number one sales volume of caviar in the world.

They can achieve such a good performance, mainly because they have adopted the technology of ultrasonic instrument to detect fish eggs. During the breeding process of sturgeon, female fish will show symptoms of rotten gonads.

This is because when checking the development of female fish, a small number of fish eggs were taken out with a puncture needle for observation through the puncture technique, and many female fish died due to infection of the puncture wound.

The use of B-ultrasound equipment to examine the gonad development of female fish through in vitro detection can protect female fish from infection caused by puncture technology; after the application of this technology, the overall survival rate of female fish can reach 98%.

Moreover, the particle size and plumpness of fish eggs can be seen through B-ultrasound images, which can not only control the quality of fish eggs, but also provide corresponding data for female fish breeding.

"The ultrasound machine is not available for the time being, but Xiao Li brought you another thing that might come in handy." Professor Xiong sent an assist at the right time.

(End of this chapter)