Question 2: How can the pearl vest fish distinguish between male and female? Generally, after five months of breeding, it is easy to distinguish the male and female of pearl fish. The dorsal fin and ventral fin of male fish are long and elegant, and the end of fin edge is sharp; The dorsal fin and ventral fin of the female fish are relatively short, the end of the fin edge is blunt and round, the body is slightly smaller, and the abdomen is swollen (see figure). During the breeding period, the male fish presents a gorgeous orange or scarlet "wedding color" from the chin to the belly, which is beautiful and dazzling, while the female fish is different, pale and not as beautiful and lovely as the male fish.
Question 3: How to tell the sex of pearl vest? Pearl has a medicinal history of more than 2,000 years in China. Ancient medical books 19 kinds, such as Medical Books of the Three Kingdoms, Herbal Classics of Liang, Herbal Medicine of Tang, Herbal Medicine of Song Kaibao, Compendium of Herbal Medicine of Ming Dynasty, Pharmacological Fu of Leigong in Qing Dynasty, etc., all recorded the curative effect of pearls clearly.
Tao Hongjing of Liang Dynasty said in Compendium of Materia Medica that pearls "have the function of healing skin and stopping bleeding". Tang Dynasty's "Haiyao Herbal Medicine" holds that pearls can improve eyesight, eliminate dizziness and stop diarrhea. In the Yuan Dynasty, merchants often drank honey and pearl powder in water, thinking that it could nourish and prevent heatstroke. Yuan Haowen recorded in "Continued Jane Yizhi": "There is little ice in Taoshui in winter ... round and clean like pearls ... in summer, honey water is used and pearl powder is added."
In the Ming Dynasty, Li Shizhen paid more attention to the pharmacological effects of pearls, and believed that the efficacy of pearls was to beautify the skin. Therefore, he wrote in Compendium of Materia Medica: "Pearls are salty, sweet, cold, non-toxic and calming; Pearlescent coating makes people moist and look good. Apply hands and feet, skin peeling; Eliminating phlegm, removing spots and stopping diarrhea; In addition to children's fever, soothe the soul; Stop nocturnal emission, remove acne and cure poison. ..... make the luster white ",etc. At the same time, many methods of pearl medicine are also recorded.
In the Ming Dynasty, Chen Jiru quoted Du Yizhi as saying that when Li Yan was in power in Tang Wuzong, Prime Minister Li Deyu made soup with jewel powder, realgar and cinnabar, each cup cost about 30,000 yuan, but after three times of decoction, the dregs were discarded. At that time, alchemy was popular, and it was believed that pearl powder, realgar and other things, after refining, could be taken permanently, and the crane hair was beautiful.
Question 4: How does the pearl mackerel breed? Pearl vest is one of the most common and easily propagated tropical fish species. In my opinion, after a novice has passed the simplest zebra pass, the second pass he needs should be a pearl vest (or blue dragon). There is almost no requirement for water quality in pearl vest culture, and there is no need to make water. The water temperature in small and medium-sized culture ponds and bare ponds is 27 degrees, and there is no need to add oxygen and filter, so the culture conditions are not high.
The breeding of pearl vest (or blue dragon) includes two stages: the first stage is the spawning of parent fish; The second stage is larval rearing. The first stage is relatively easy, and the second stage is relatively troublesome. This is mainly because although the output of pearl vest is large (generally 1, 200, sometimes more than 5000), the eggs are small and the survival rate of larvae is low, so it is difficult to improve the survival rate of this fish.
Pearl vests don't need large tanks to lay eggs, but small and medium tanks can; However, it is best to hatch larvae in larger containers.
I use a 50*30*30cm incubator, which is relatively large and is sufficient for spawning and larval rearing.
Fish: Choosing a fish is the first step. Of course there will be male and female fish. The ratio of male fish to female fish is different for different kinds of fish, and the ratio of pearl vest is 1: 1, hehe.
On June 1 1 day, the male fish was put into the large aquaculture box in front, and the female fish was put into another small box on the morning of June 12.
The two tanks are close together, so that the two fish can see each other and brew their feelings. The color of the male fish has become
More vividly, the mother fish seems to have no response.
12 at night, the female fish was fished into the tank and put with the male fish.
On June 13, the male fish began to spit bubbles and began to chase the female fish.
At noon on June 14, two fish began to mate. The mating process is as follows: the male fish is under the bubble nest, the female fish swims over actively, and the two fish entangle and lay eggs under the bubble nest. Then the male fish drove the female fish away, cleaned the battlefield by himself, collected the scattered fish eggs and put them under the nest. This mating lasts from noon 12 to around 4 pm, and 10 is almost every few minutes, a total of about 20 times. Every time there are as few as 10 capsules and as many as hundreds.
During the intermission of spawning, male fish constantly repair their nests, and when pearls breed, both male and female fish completely fast, so that they can concentrate on spawning, and parent fish will not eat fish eggs. In my opinion, this should be a proof that perch is more advanced than cyprinid fish (such as zebra fish) in evolution. There is a' door' in the brain nervous system of bass, which automatically closes when breeding; However, carp-type fish do not have this door. They will eat whenever they are hungry, whether they are laying eggs or not. This shows that the nervous system of perch is more complex and advanced than that of carp.
At about noon 1 1, most of the small fish were found to have hatched. It takes less than 24 hours from spawning to spawning, which is related to my high water temperature (29 degrees). If the water temperature is low, it may take 36 hours to spawn small fish. Below is the collapsed bubble nest with many small fish in it. Now it seems that the number of small fish is not too much, but it is not too small, about 2300. If the mother fish's stomach is big enough, it may reach 6700. You can see that there are some unfertilized white eggs, which are not too many now and belong to the normal range.
Question 5: How does a pearl vest distinguish between men and women? Is the picture a man or a woman? There is also a pregnant blue dragon. The female fish is not as long as the male fish. The female fish looks different from the male fish.
Question 6: Will mom's pearl vest turn red? Both the mother bear and the male bear have red bellies.
Question 7: How to raise the pearl vest fish? Do you have any details? Pearl vest is one of the most common and easily propagated tropical fish species. In my opinion, after a novice has passed the simplest zebra pass, the second pass he needs should be a pearl vest (or blue dragon). There is almost no requirement for water quality in pearl vest culture, and there is no need to make water. The water temperature in small and medium-sized culture ponds and bare ponds is 27 degrees, and there is no need to add oxygen and filter, so the culture conditions are not high.
The breeding of pearl vest (or blue dragon) includes two stages: the first stage is the spawning of parent fish; The second stage is larval rearing. The first stage is relatively easy, and the second stage is relatively troublesome. This is mainly because although the output of pearl vest is large (generally 1, 200, sometimes more than 5000), the eggs are small and the survival rate of larvae is low, so it is difficult to improve the survival rate of this fish.
Pearl vests don't need large tanks to lay eggs, but small and medium tanks can; However, it is best to hatch larvae in larger containers.
I use a 50*30*30cm incubator, which is relatively large and is sufficient for spawning and larval rearing.
Fish: Choosing a fish is the first step. Of course there will be male and female fish. The ratio of male fish to female fish is different for different kinds of fish, and the ratio of pearl vest is 1: 1, hehe.
On June 1 1 day, the male fish was put into the large aquaculture box in front, and the female fish was put into another small box on the morning of June 12.
The two tanks are close together, so that the two fish can see each other and brew their feelings. The color of the male fish has become
More vividly, the mother fish seems to have no response.
12 at night, the female fish was fished into the tank and put with the male fish.
On June 13, the male fish began to spit bubbles and began to chase the female fish.
At noon on June 14, two fish began to mate. The mating process is as follows: the male fish is under the bubble nest, the female fish swims over actively, and the two fish entangle and lay eggs under the bubble nest. Then the male fish drove the female fish away, cleaned the battlefield by himself, collected the scattered fish eggs and put them under the nest. This mating lasts from noon 12 to around 4 pm, and 10 is almost every few minutes, a total of about 20 times. Every time there are as few as 10 capsules and as many as hundreds.
During the intermission of spawning, male fish constantly repair their nests, and when pearls breed, both male and female fish completely fast, so that they can concentrate on spawning, and parent fish will not eat fish eggs. In my opinion, this should be a proof that perch is more advanced than cyprinid fish (such as zebra fish) in evolution. There is a' door' in the brain nervous system of bass, which automatically closes when breeding; However, carp-type fish do not have this door. They will eat whenever they are hungry, whether they are laying eggs or not. This shows that the nervous system of perch is more complex and advanced than that of carp.
At about noon 1 1, most of the small fish were found to have hatched. It takes less than 24 hours from spawning to spawning, which is related to my high water temperature (29 degrees). If the water temperature is low, it may take 36 hours to spawn small fish. Below is the collapsed bubble nest with many small fish in it. Now it seems that the number of small fish is not too much, but it is not too small, about 2300. If the mother fish's stomach is big enough, it may reach 6700. You can see that there are some unfertilized white eggs, which are not too many now and belong to the normal range.
Question 8: Are my two pearl vests male or female? ! When can they lay eggs? It's a couple. The pearl fish is sexually mature 10 month, and can reproduce 10 times a year.
Question 9: Pearl vest has 10. For some reason, there are only four left because of the collision. Please answer the questions from the experts. Thank you for a circle in the sky and a circle in your hand. Although the circle in the sky is big, it is not as sweet as the hand.