1. Introduction to red catfish

Red catfish is also known as golden catfish or grass goldfish, which is similar to the Japanese koi. It is a variety formed by the mutation of red and yellow catfish during artificial breeding. It is the oldest variety of goldfish.Its color is fiery red, red and white.Because red catfish breeding conditions are simple, the feeding cost is low, the omnivorous, and the growth is fast. Therefore, it can be used for self -training for beginners for breeding technology. Therefore, he is a very popular species. It is mainly distributed in Asia and has strong survivability.

2. morphological characteristics

Red catfish, the body is spindle -shaped, the tail fin does not split, the back, abdomen, chest, and anal fins are normal.Strong physical fitness, strong adaptability, wide food properties, and easy to raise.In addition to red, there are red and white flowers, five flowers, etc.Suitable for large -scale feeding in parks and natural waters, and can also be kept in the courtyard tank pool and aquarium.

3. Life habits

1. Breeding

The red catfish is the same as brocade carp, and the reproduction period of red catfish is in3arrive8Month, always after rain

Smooth in the overgrown lake.The growth rate of red catfish is slightly slower, and the weight in the first year is50Right or so, the next year's weight100arrive200A little around, weight in the third year250to300Right.

2. Feeding management

(1) Change water

Changing water frequently can increase oxygen, but you cannot use tap water for changing water, because tap water contains chlorine, and red catfish will die within a few hours when you encounter chlorine.You can use mountain springs, lakes, and streams.

(2) Feeding

Water flea: Also known as fish insects or red worms, brown, reddish brown, green, etc., live in places with many water plants, but it is best to feed at one time.

Water earthworms: It is called red thread bug, and the water earthworm looks like an earthworm. Because the water earthworm lives in the mud, when the water earthworms are fed with red catfish, they must be rinsed repeatedly.Otherwise, red catfish will be sick.

(3) Light

Because the sun can sterilize, it is best to put red catfish in the sun for an hour or two to prevent disease prevention.And the color will be more vivid and beautiful.

(4) Distribution range

Red catfish lives in Asia and usually inhabits ponds. It is very adaptable, and even turbid water can be seen.In order to get food better, catfish choose to move and forage in lighter waters, especially the aquatic plant bushes, and it is the concentration of catfish.It is mainly eaten with algae, mullet, and small fish and small shrimp.

(5) Pond

Red catfish is an artificially selected catfish variety with a wide market prospect.Below we will introduce the pond main raising red pupa technology to you:

(6) Pond conditions

The pond with a cowein, the area of the pond mouth is generally required5-8Acres, Chi Shen2.8-3.0Mi, pool wall slope1: 2.5-3.0, Effective water storage depth2-2.5rice.High -yield refined ponds need to be equipped with oxygen -breaking machinery, and the power is1.5kilowatt/3-5mu.

(7) fish species and release

Before the fish species is released, the selected pond should be cleared to kill the pathogen and enemy creatures.In order to improve the survival rate and listing specifications, fish seeds should be promoted.The release density is generally per kilogram30-50Put the fish species of the tail per acre1000-1500Tail, another with , (4: 1) spring film fish species, put in each acre250-300tail.When the fish species is released, use it3%Salt water and salt water1010-6Potassium permanganate solution with concentration10-15minute.

(8) bait feed

The content of the protein content of the bait of the bait is30%The above, daily feeding rate:4-5Month1-1.5%,,6-8Month2.5-6%,,9-10Month2-1.5%,in,6-8You can feed some blue green feed in the month.The bait should be fixed at a fixed -point, and each pond can be set up.3-5indivual.Daily bait1-2Second, the specific feeding amount is flexible according to the weather and the actual food of the fish, generally2It is advisable to be slightly left before feeding.

(9) Tube water prevention

In the production season, regularly add and change the new water to the growth of red pins.General summer every summer10-15Tianjia Note Xinshui1Second-rate.The amount of new water is changed at a time20-50centimeter.When changing the water, take the first drain and then enter, that is, drain the water from the bottom of the pond, then add water to the pond surface.At the same time, insist on booting normally at noon on sunny days1-2Hour.In addition10-15Sittrus sprinkler sprinkle strong chlorine essence1Second; medication concentration is0.210-6-0.310-6EssenceAdd drugs and other drugs in the feed season to the feed seasons, and the dose is daily1000Kilogram fish medication100Grace, monthly1-2Second, use each time3-5God can effectively prevent outbreak diseases such as enteritis and hemorrhage.

1. What shoes are hiking shoes

Hiking shoe is a shoe specializing in outdoor sports.The hiking shoes are mainly composed of shoe gangs, inner soles, and soles.The upper is generally made of leather, nylon, or leather nylon, and the lining is generally made of artificial materials or soft leather.A good pair of hiking shoes is usually made of a whole piece of Skin (except the heels and the tongue). Such shoes can still maintain a better shape after wearing it for a while.The design of hiking shoes focuses on non -slip and breathability to meet the needs of complex weather and terrain.They are usually divided into low gangs, mid -gangs, high gangs and other types to meet the needs of different outdoor activities.

The historical origin of hiking shoes comes from Europe. With the continuous development of modern society, people's demand for outdoor activities is getting higher and higher. As an important part of Outdoor sports equipment, hiking shoes are self -evident.Having a pair of suitable hiking shoes is essential for people who like Hiking, Hiking and other outdoor activities.

What is the difference between hiking shoes and mountaineering shoes

1. design concept

hiking shoes, as the name suggests, are born to meet the long -term needs of Hiking people.They usually use low -top design to provide moderate freedom for ankles and reduce the sense of restraint.This design not only ensures the comfort of the foot, but also enhances the breathability of the shoes, so that the Hiking people can still maintain the dryness of the foot in a long walk.

In contrast, the design concept of mountaineering shoes pays more attention to the protection of ankles.They usually use high -top design to wrap their ankles tightly to provide additional support and protection for climbers.On the rugged mountain road, this design can effectively prevent the ankle injury and ensure the safety of climbers.

2. Functional characteristics

hiking shoes focus on lightness and comfort, the soles of the soles are soft and have good buffering performance to cope with the impact of long -term walking.At the same time, the soles of hiking shoes also have good grip to ensure the stability in the walking process.

mountaineering shoes pay more attention to functionality.They usually have multiple characteristics such as waterproof, moisture -proof, and anti -slip to cope with the harsh Outdoor environment.During the climbing process, the non -slip and grip performance of mountaineering shoes play a vital role. They can help climbers stabilize their bodies and reduce the risk of slippery.In addition, Climbing shoes also have good weight -bearing performance, which can support the heavy objects that climber bear.

3. Material selection

The upper of the hiking shoes is usually made of light leather, nylon and other materials to provide good breathability and comfort.This material combination enables the hiking shoes to maintain the comfort and dryness of the foot during long walking.

mountaineering shoes are more tough and wear -resistant, such as anti -fleece, frosted leather, etc.These materials not only enhance the wear resistance of shoes, but also provide better protection performance.At the same time, the soles of mountaineering shoes are also harder to provide better support and grip.

4. Applicable scenarios

hiking shoes are mainly suitable for Outdoor environments that are better on road conditions and need to walk for a long time, such as Hiking travel and urban Hiking.In these scenes, the comfort and breathability of hiking shoes can provide the wearer with a good walking experience.

mountaineering shoes are more suitable for technical activities such as mountain climbing and Rock climbing.In these activities, the characteristics of waterproofing, non -slip, and loading of mountaineering shoes can provide comprehensive protection for the wearers to ensure the Smooth progress of the activity.

5. Fashionability

The design of hiking shoes pays more attention to fashion elements to meet the needs of urban leisure.They usually adopt simple and fashionable design styles and can be matched with various clothing.mountaineering shoes pay more attention to professional performance, so it may be relatively conservative in appearance.They pay more attention to practicality and functionality to meet the needs of professional climbers.

In summary, there are obvious differences in hiking shoes and mountaineering shoes in terms of design concepts, functional characteristics, material selection, and applicable scenarios.These differences make the two shoes have their own performance and use, which meets the needs of different outdoor activities.When choosing hiking shoes or mountaineering shoes, comprehensive consideration should be made according to factors such as your activities, road conditions, and personal preferences to ensure that you choose the shoes that suits you best.

1. What does bikini mean

bikini (bikini, Hong Kong, known as "Bigeni"), is also known as a three -point Swimsuit. It is a kind of Swimsuit worn by a woman.

bikini invented in 1946 and entered China in the 1990s.It is known as "the greatest invention of the world's world's clothing industry."

two,What kind of bikini is suitable for

Many girls say they like bikini.But if you want to wear but your body is not good enough, what should I do!In fact, it is like choosing the right clothes to improve the figure. Choose the right bikini suitable for our body shape. It can still make us imperfect us playing on the beach hot and sexy.

1. Girls with a small belly should choose a style that can block the belly, but it does not need to be completely covered. It not only looks both conservative and boring, but also loses the meaning of bikini.

2. Girls with width cheekbone and large buttocks should choose a bikini style with decorative or confusing vision. The bikini of the printed pattern is disorderly visual weakness of the hip lines and will not show the shortcomings of the width of the cheekbone.

3. The petite girl will always give people a childish feeling. Choosing a bikini is to choose a popular style.Power can also increase the proportion of body.

4. The full body girl has the advantage of bikini, and should choose a stylish style that can show sexy figure.

5. MM with smaller chest or short upper body should choose the color that can develop visually to balance the upper and lower proportions, increase the horizontal sense of visual, improve the outline, Modify the perfect body proportion.

1. How much is a pair of training shoes

training shoes are a must -have equipment for each sports enthusiast. Choosing a pair of suitable training shoes can not only improve sports performance, but also effectively protect your feet and reduce sports damage.So how much is a pair of training shoes?

Generally speaking, the price of training shoes of ordinary brands ranges from hundreds of yuan, and the price of some well -known brands or high -end models may reach thousands of yuan, and you can choose according to your needs.

2. Types of training shoes

1. According to the material

(1) Natural leather: such as cowhide, sheepskin, pork leather, etc., it has the advantages of softness, breathability, warmth, folding, durable, etc.

(2) Synthetic leather: A plastic product that simulates natural leather is usually made of impregnated non -woven fabric as a mesh layer, and the microre polyurethane layer is made of grain layer.And have a certain breathability.

(3) Factory material: usually uses flying weaving technology to form a soft, comfortable and breathable upper. It has the characteristics of lightweight and comfortable, and has good elasticity, toughness and wrapping.

2. divide by function

(1) Shock -absorbing training shoes: This type of training shoes is mainly designed for people with heavy weight or inner feet.They absorb the impact of heels and Running movements through special sole design and structure, thereby reducing the impact and injury risk of feet during Running.The external characteristics of this type of shoes are the thickness of the arch of the foot, and the weight of the shoes is medium.

(2) Captive training shoes: The design of this training shoes is to provide good ground grip and stability, suitable for wear during training that needs to maintain balance and stability, such as squatting, hard pull, etc.During strength training.

(3) Stable support training shoes: designed for people who need to strengthen foot stability.This shoe usually has a special sole structure and a strong outer support to help prevent the foot from excessive internal or external rotation.This can reduce the risk of injury and help improve the efficiency of Running or training.

3. How to choose training shoes

1. sports:Different sports require different types of shoes.For example, running shoes emphasize buffer and shock absorption, basketball shoes focus on non -slip and side stable support, and strength training shoes are stable.Learn about your main exercise, and choose the corresponding shoe type.

2. Material

(1) The soles of training shoes should have the functions of shock absorption, support and abrasion to meet the needs of different training intensity and amount of exercise.Some elastic and buffer properties, such as rubber, EVA, can provide better support and cushioning effects.

(2) The upper of the training shoes should be breathable, wear -resistant and supportive to maintain the dryness and comfort of the feet.The mesh material can provide good breathability, while the leather material can provide better support and wear resistance.

3. Foot type:Know your own foot type, such as normal foot, high arch or flat foot.Those who are high -footed should choose shoes that emphasize shock absorption. Those with flat -footed feet need to support shoes with strong functions.

4, shoe number:When trying it on, you should wear sports socks and leave enough space to ensure that the shoes are fitted during exercise.

5. Back help:After selecting the shoes, help the shoes that are hard enough to make the sides of the heels reliable to prevent shaking during exercise.

6, middle and front shoe soles:According to the needs of sports, select shoes with appropriate hardness of the middle and front soles.

7. Life life:Pay attention to the service life of the shoes and replace the deformation or decreased shoes in time.

8. Personal needs:Considering personal needs, such as support, stability, control, buffer, shock absorption, rebound, anti -slip, sweat, breathable, antibacterial, deodorization, wear resistance, balance, lightweight, grip, correction and other functions.

one,footballHow to tie shoelaces

The laces of football shoes are not good. Frequent looseness on the court will affect the football, so you must tie the shoelaces before playing.The shoes of football shoes are different from different lengths, and the method of the system is also different. Below is the three types of football shoelaces:

1. Short length shoelaces

(1) Tighten the laces completely.

(2) Play an ordinary cross.

(3) The two ends are left at least one centimeter.

(4) Fad in a normal bow.

(5) Finally, two butterfly heads are tied to a cross.

2. medium -length shoelaces

(1) First hit an ordinary cross.

(2) Put the two shoelaces at the folding of a normal bow.

(3) Finally, the folding bow is surrounded by the cross -knot system again.

3. Long -length shoelaces

(1) Tighten the laces completely and tie a normal cross.

(2) Cross the shoelaces from the soles, and furnish another cross on the soles.

(3) A normal cross -side on the outside of the shoe.

(4) Grab a shoelace with a folding hand, and then let the other shoelaces come from above it.

(5) Use the middle to pass through the eyes from the previous eyes, and finally tighten.

2. What should I pay attention to if there is any lab for football shoes

There are many methods of football shoes. In principle, football shoes do not have a specific method of tie shoelaces, and in fact, as long as you tighten the tie tie firmly, you are not easy to loosen.

It should be noted that whether it is the laces head or the lace circle, the length should be equal, so that the shoelaces shake during the Running process will not be too large, and it is not easy to jump off;Methods, the last step must be tightened hard, which is often ignored by many friends.