Feeding techniques of long-lived fish

Fire fish, tropical fish alias Shouxingtou, Shouxingfish, native to Nicaragua, Costa Rica and other places in Central America. Then let's take a look at the longevity fish culture technology I carefully recommend for everyone, hoping to help you.

Cultivation techniques of long-lived fish

Fierce fire fish, tropical fish, scientific name of fish: cichlasomacitrinellum, alias Shouxingtou, Shouxingyu, is native to Nicaragua, Costa Rica and other places in Central America, belonging to the cichlid family, with a body length of 20-30cm and similar body shape to goldfish. The head is big, and there is an obvious round sarcoma above the head, which is different from others. The body color is pink, the young fish is gray-black, the adult fish becomes fiery red, and the body color is changeable, sometimes orange or yellow. The feeding water temperature is 22-28℃, and the bait includes fish worms, water worms and small live fish. The aquaculture water temperature is 27-29℃, and the water quality is weak acid soft water. The parent fish matures for 6-8 months. There is a big sarcoma on the male fish head, which is as bright red as fire, while the female fish is lighter. Each time it lays 200-500 eggs, smooth rocks or marble slabs are used as nesting sites.

Its tall forehead looks like a birthday girl, and its character is rough. Can only be mixed with large and fierce fish. In Southeast Asia, some people keep flamingos (Shou), three tigers (Lu) and arowana (Fu) in a jar. What is this called? Fu Lushou? .

Hong Kong people worship in the main hall.

Species of longevity fish

1, the red birthday girl: the sarcoma of the head is distributed all over the head and is very developed. Some kinds of sarcomas consist of smaller sarcomas, while others consist of several large sarcomas. It looks charming!

2, red and white birthday star: sarcoma of the body or head can be red or white, each tail is different in distribution, but each has its own characteristics. The sarcoma of the head should be developed and thick, preferably square, which will be very charming and precious.

3, black birthday girl: black as ink, with black head sarcoma, feeling noble and generous.

4, Wuhua Shouxing: The body is colorful, and the sarcoma on the head is not very developed. Look at its clumsy posture. It's really cute. 5. Red Lanshou: The back end of this red Lanshou drops sharply, and it feels very curved, with red sarcoma on its head, short fins and lovely swimming style.

6, red, white and blue longevity: the head or body color is red or white, and the back end of the back bends sharply to the tail. Sarcoma on the head is red or white, which is very common.

7. Black, blue and thin: Black, blue and thin are very beautiful. It is a variety cultivated by Lanshou and Shouxing, so there are thick sarcoma of Shouxing and beautiful pictures of Lanshou, which makes people fondle it.

8. Red-headed Bailanshou: Red-headed Bailanshou is also a very popular goldfish species. Snow-white body with a red crown and a fat abdomen is a very symmetrical fish species.

9. Red, black and blue longevity: If people in China like red, which represents happiness, then this kind of red, black and blue longevity is a maverick variety, with strong and chaotic red and black colors, well-developed head sarcoma, and a round figure, which is very funny.

10, Wuhua Lanshou: If you understand and appreciate it, you will find that they have smooth and beautiful back curves without fins. These Wuhua Lanshou just meet the above characteristics. Its colors are colorful, some parts have no sarcoma, and some parts have sarcoma on their heads, which is also very attractive.

Seedling cultivation of long-lived fish

1. Seed pond and water quality requirements The area of seed pond is generally 20 square meters to 40 square meters, and the water depth is about1.0m. Closed circulating water is used for aquaculture, and the water quality meets the aquaculture water quality standards. Before stocking, the concentration used in the culture pond is 0.5? Chlorine dioxide solution for disinfection 10E-6.

2. The quality of fry requires that the stocked fry should be strong in physique, neat in specifications, strong in water resistance, shiny in body surface, sensitive to external stimuli, plump in muscles, full and bright in eyes, neatly arranged in scales, free from fin defects, bright red in gill tissue and free from parasites.

3. Seed stocking When the seeds are stocked, the concentration is 20? Disinfect with povidone iodine solution of 10E-6 for 5 minutes to 20 minutes; The stocking density of 2 cm ~ 3 cm fry is generally 250 ~ 300 fish /m2.

4. Feeding and daily management: feeding 4-6 times a day. The feed can be red worms, small fish or granular feed. Before feeding, the fresh fish and worms should be disinfected with 4% salt water 10 minute, and then washed before feeding. The water temperature of aquaculture is controlled at 26℃ ~ 28℃, and sewage is discharged every day to replenish fresh water to keep the water clean.

Artificial propagation of long-lived fish

Cichlids, also known as Shouxingyu, Lucky Fish and Shouxingyou, belong to Cichlids, and are both ornamental and edible tropical fish. Adult salamander is generally 20 cm ~ 25 cm long, with strong physique and changeable body color, generally orange-red, white and orange. The water temperature suitable for living is 23℃ ~ 28℃, with rough temperament and strong territorial consciousness. Sometimes two fish can bite each other, resulting in both losses, so the fiery fish should not be mixed with the small fish. Fierce fish eat fish worms, water worms, small live fish, shrimp and so on. After artificial domestication, they can eat artificial compound pellet feed.

Seedling propagation:

1. The parent fish culture pond uses closed circulating water, and the culture pond used is cement pond, with an area of 20 square meters and a water depth of1.2m. The water source is hot spring water, and the water quality meets the standards for culture water, with relatively constant water temperature and clear water quality without pollution. Before stocking flamingo fish, the culture pond should use 0.5? 10E-6 chlorine dioxide solution for disinfection, and then add new water.

2. Selection and cultivation of parent fish When choosing parent fish, it is required that the male fish generally has a raised forehead and bright body color, and the abdomen of the female fish increases with the tips of dorsal fin and gluteal fin, and the ends of dorsal fin and gluteal fin are round. 1 cement ponds with an area of 20 square meters generally have 10 ~ 15 pairs of flamingo parent fish, with a male-female ratio of 1: 1. Before stocking, the fish concentration was 20? 10E-6 povidone iodine solution is used to disinfect parent fish for 20-30 minutes. When parent fish are cultured, they are usually fed twice a day. The feed is fresh small fish or compound feed. The feed is required to be fresh, not moldy, not deteriorating, and the nutrients can meet their development needs. Vitamin E can also be properly added to promote the development and maturity of gonads of parent fish. Discharge sewage regularly every day and replenish fresh water by 20 cm ~ 30 cm to create a good living environment for parent fish.

3. The fiery fish bred by fry grows rapidly. After 8 months to 10 months of culture, its gonad is mature and can reproduce. When two adult fish are found alone in a corner and other fish try to get close, the two fish show a strong sense of territory and will bite other fish, indicating that the two fish have sprouted love; Or it is found that the reproductive process of male fish is obviously drooping and slightly slender, while the abdomen of female fish is enlarged and the oviposition tube is thick and short, which is obviously prominent on the body surface. At this time, the female and male parent fish should be taken out in time and put into the spawning pond or tank, and 1 marble or 1 flowerpot should be placed at the bottom of the pond or tank as the ovary. The concentration of spawning pond, spawning pond and ovary should be 20 before use. Soak in the potassium permanganate solution of 10E-6 for 30 minutes, and then rinse for later use. The aquaculture water temperature is controlled at 27℃ ~ 28℃. When the male and female parents are familiar with the surrounding environment, they will peck the spawning board in turn. After cleaning, the time is ripe. The female fish will lay eggs on the spawning board, and the male fish will release semen to fertilize it. This process is often called. Walking? . Usually after 40 to 60 minutes, spawning will be over. Female fish usually lay 800 ~ 1000 eggs at a time. In this process, the parent fish will keep swallowing the fallen white eggs with their mouths. Therefore, the spawning board or parent fish should be fished out in time after spawning. It should be noted that the water quality of fertilized eggs is the same as that of spawning ponds, so as not to affect the hatching rate. During the incubation period, pay close attention to the change of water temperature, absolutely avoid the sudden rise and fall of water temperature, and control the dissolved oxygen content at 5 mg/L ~ 6 mg/L. After the incubation period of 48-72 hours, the larvae break out of the membrane, gradually leave the spawning board and fall to the bottom of the pool or pond. The newly hatched larvae have yolk sacs. In the first 2 ~ 3 days, the larva sustains itself by absorbing its yolk sac, and finally floats to the surface. When larvae swim to the surface, yolk sac is basically absorbed. At this time, it is necessary to feed open bait in time, such as the yolk of several planktonic protozoa, to ensure that the larvae can take enough palatable bait to survive. After 7 days to 10, rotifers, cladocera and copepods can be fed. At this time, according to the stocking density and water quality, the stocking density should be reduced in time for separate culture, and at the same time, the water exchange rate should be increased, and the sewage should be sucked in time to keep the water fresh.

Adult fish culture of longevity fish

1. Adult fish culture pond requires that the area of adult fish culture pond is generally 40 square meters to 100 square meters, and the water depth is about1.2m. Closed circulating water is used for culture, and the water quality meets the aquaculture water quality standard. Before stocking, the concentration of the culture pond is 0.5? Chlorine dioxide solution for disinfection 10E-6.

2. When stocking fish, the concentration is 20? 10E-6 povidone iodine solution is disinfected for 20 to 30 minutes, and the stocking density is generally 25 to 40 animals /m2.

3. During the feeding period of adult fish, the content of protein should be above 30%, and it is best to use expanded pellet feed and stick to it? Four decisions? Feed it four times a day in principle.

4. Daily management of aquaculture water temperature is kept at 26℃ ~ 27℃, and fresh water is supplemented at any time to adjust the temperature as needed. Keep the water circulating 24 hours a day, and the water quality is clean. Pay close attention to fish activities and solve problems in time. Disease control of long-lived fish