CATDOLL : CATDOLL: How many kilograms of yellow croaker can be raised per cubic meter

1. How many kilograms of yellow croaker can be raised per cubic meter?

Each cubic meter can raise 22 kilograms of yellow croaker. According to the Deep Blue Fishery Technology Innovation Project - Deep Sea Vessel Breeding Development Seminar, the Guoxin 101 pilot ship has achieved the intensive and efficient breeding of yellow croaker for the first time, with an average breeding density of 22 kilograms per cubic meter, a survival rate of more than 95%, and a monthly weight gain of 70-80 grams, which further verifies the effectiveness and economy of cabin fish breeding.

2. Basic nutrients for brain health

Fat, protein, vitamin C, vitamin E, vitamin B, minerals, sugar, a total of seven

Fat is an essential nutrient for brain cells. 50% to 60% of the brain is made up of fat. The essential fats needed by the brain mainly include linoleic acid and linolenic acid, that is, unsaturated fatty acids are the main nutrients that make up the brain.

Protein is one of the main components of brain cells. Among the components of the brain, 30% to 35% is composed of protein. The function of protein in the brain is to control the excitation and inhibition of brain nerve cells, dominate the brain's intellectual activities, and help memory and thinking. It also plays a major role in language, movement, nerve conduction, etc.

It can promote the firmness of brain cell structure, eliminate the looseness or contraction of brain cell structure, and play the role of lubricant. Vitamin C in the brain can make brain cells function sharply and make the brain alert and flexible. If the supply of vitamin C is insufficient, the structure of brain cells will be loose or contracted, and the capillaries of brain nerves will be blocked and thinned, resulting in reduced brain cell activity and low brain function, affecting IQ.

Including vitamin B1, vitamin B2, vitamin B6, niacin, pantothenic acid, vitamin B12, etc. Their common role in the brain is to help protein metabolism. For example, in the process of protein metabolism, when making positive substances from γ-aminobutyric acid, vitamin B1 and vitamin B12 are essential coenzymes, while when making negative substances from aminobutyric acid, vitamin B6 and pantothenic acid are indispensable.

The effect on the brain is to prevent the peroxidation of unsaturated fatty acids and prevent the brain from falling into an acidic state. After the fat in brain cells is oxidized, the brain tissue contains a large amount of unsaturated fatty acids that are easily oxidized, causing the brain to begin to age. Vitamin E has a strong antioxidant effect, preventing the production of lipid peroxides in the brain, preventing brain fatigue, and delaying brain aging.

The best sources of sugar are unprocessed brown rice, germ rice, and the nationally prescribed 85-gram flour, 92-gram rice, millet, yellow rice, glutinous rice, corn, sorghum, barley, wheat, buckwheat, oats, honey, yam, brown sugar, etc., which are grown in soil, water, and air that are not seriously polluted and are fertilized with organic fertilizers. The amount of sugar in the food consumed by each person every day is sufficient. If too much sugar is supplemented, the brain will enter a state of excessive fatigue and affect brain function. In a sense, the intake of sugar should be limited.

3. Which is better, Shanghai University of Technology or Shanghai Ocean University (Fisheries University)?

I personally think Shanghai University of Technology is better! In terms of the faculty, number of students, doctoral and master's programs, number of graduate students, key disciplines, number of undergraduate majors, etc., Shanghai University of Technology is obviously better than Shanghai Ocean University.

Shanghai Ocean University

The school currently has 1 national key discipline, 10 provincial and ministerial key disciplines, 4 Shanghai Education Highlands and 1 Shanghai Higher Education E Research Institute. It has 1 postdoctoral research station, 1 first-level doctoral degree authorization point, 7 second-level doctoral degree authorization points, 2 first-level master's degree authorization points, 26 second-level master's degree authorization points, 7 master's degree authorization points for equivalent academic qualifications, 43 undergraduate majors and directions, and 10 higher vocational majors.

At present, the university has more than 12,000 undergraduate students and more than 1,140 postgraduates; there are 1,040 faculty members, including more than 680 full-time teachers, nearly 400 senior professional and technical personnel, including 104 senior professors, and 343 doctoral and master's supervisors. The university has 1 member of the discipline evaluation group of the State Council Academic Degrees Committee, 1 selected candidate of the National Hundred Thousand Talents Project, 2 young and middle-aged experts with outstanding contributions at the national level, 3 young and middle-aged experts with outstanding contributions at the provincial and ministerial levels, and 4 members of the Seventh Science and Technology Committee of the Ministry of Agriculture.

The school currently has 1 national key discipline, 10 provincial and ministerial key disciplines, 4 Shanghai Education Highlands and 1 Shanghai Higher Education E Research Institute. It has 1 postdoctoral research station, 1 first-level doctoral degree authorization point, 7 second-level doctoral degree authorization points, 2 first-level master's degree authorization points, 26 second-level master's degree authorization points, 7 master's degree authorization points for equivalent academic qualifications, 43 undergraduate majors and directions, and 10 higher vocational majors.

University of Shanghai for Science and Technology

The university has 16 colleges, 2 teaching departments, 30 research institutes, 12 research centers and 3 research institutes. There are more than 15,400 undergraduate students and more than 3,300 graduate students, including more than 230 doctoral students. According to the needs of national economic construction and social development, the university has continuously adjusted and transformed its discipline and professional structure. It currently has 6 major disciplines, including engineering, science, economics, management, literature and law, 54 undergraduate majors, 3 postdoctoral research stations; 3 first-level discipline doctoral degree awarding points; 30 second-level discipline doctoral degree awarding points (including self-established); 11 first-level disciplines and 59 second-level disciplines master's degree awarding points; 11 fields have the right to award engineering master's degrees and the right to award professional degrees of Master of Business Administration (MBA). The university has 1 national key first-level discipline, 6 Shanghai key disciplines, 7 key disciplines of the Ministry of Machinery Industry; 2 national scientific research centers (National Science and Technology Park of Shanghai University of Technology, National Engineering Research Center: Industrial Process Automation), and 4 ministerial and municipal scientific research centers.

4. Summer vacation life composition

On the tenth day of the first lunar month, my mother and I went to Hangzhou Underwater World for a visit.

Entering the gate of the underwater world, turn left and you will see a long tunnel. As soon as I stepped into the underwater tunnel, I felt like I was swimming in the depths of the ocean. Huge reefs, colorful corals, and gorgeous anemones were within reach. Various types of coral reef fish with gorgeous colors and different shapes swam past me in groups; snake-like flower eels hid their more than 1-meter-long bodies in the corals, revealing their sneaky heads; more than 2-meter-long sharks were quietly sleeping in the corners; bat-like manta rays appeared and disappeared here; a hundred-year-old golden beetle slowly paced above my head... What a colorful and vibrant magical world.

After appreciating the magical tropical marine fish, we also watched the performances of underwater animals. The most outstanding performance was the seal performance. The one who performed for us was a spotted seal named "Dudu". It is about 1.5 meters long, with a brown-yellow body and many spots, and its front and rear limbs are fin-shaped. Seals are highly intelligent animals. After training, they can perform many programs and are star actors in the underwater world. The first program of "Dudu" was to put on colored rings. The trainer uncle threw the colored rings to various corners of the pool at will. "Dudu" quickly jumped into the pool, nimbly dived into the water, accurately found the colored rings and put them around his neck, and delivered them to the trainer uncle's hands. The strange thing is that after each performance, as long as the whistle sounded, "Dudu" couldn't wait to jump on the shore, slide in front of the trainer uncle, open his mouth and "woooo" and cry for food. It turned out that "Dudu" was also like a naughty child. Every time he performed an outstanding program, he never forgot to ask for rewards. The trainer uncle rewarded it with a small yellow croaker. It swallowed it whole and jumped into the water to prepare for the next performance. The second program was jumping through the ring. The trainer held a hula hoop and asked "Dudu" to jump from low to high, and then jump higher and higher, close to 1 meter. The audience held their breath, worried that it would not be able to jump over. It jumped hard and passed through the ring accurately. The audience applauded and cheered for it. Then, it performed programs such as heading the ball, pushing the skateboard, and kissing.

Next, we watched the unforgettable "Dancing with Sharks". This is an outstanding performance worth watching. The fish on the "dining table" under the sea seemed particularly lively, and different kinds of marine life were eating in various ways. When the eating started, no matter whether it was the graceful "ladies", the gentle "gentlemen", or the idle "lazy men", they all became masters of predation in an instant, which was really hilarious. Look, the "giant" walrus jumped out of the water and grabbed the yellow croaker in the hands of the keeper; the manta ray put its snow-white belly on the glass of the tunnel, and sucked the yellow croaker into its mouth with its "mouth"-shaped mouth; while the sea turtle opened its big mouth and bit the cabbage in big mouthfuls, eating it with relish; what was even more amazing was that the ferocious king of the sea - the shark actually became a close and tacit friend with the keeper who often took care of their "food and daily life". This scene made me feel deeply: humans and animals can coexist peacefully, and animals are our friends.

Hangzhou's "Underwater World" is really fun! I heard that Hong Kong's "Underwater World" is bigger and more fun. I wish Ningbo also had its own "Underwater World".