VIII. Management of post-partum broodstock After the broodstock is laid, the brood females and males should be promptly moved into the “old water†rearing tank (cylinder, basin, and pond) with the same temperature as the original pool water, especially for the precious species of broodstock. , Do not breed after spawning, because in the spawning process of broodstock often chasing so that the body surface such as mucous membranes, skin and scales and other damage; and the broodstock just finished the egg is also weak, removed from the spawning pool or after When removing dirt or changing water, use a washbasin with water hose to remove the fish from damage. If you find injured broodstock, apply anti-inflammatory drugs to the wound in time. When feeding, be careful and careful, and observe their activities and appetite. Start to feed less, and feed some good palatability food. After the constitution returns to normal, feed it according to the standard and implement normal management. In the breeding season of goldfish, especially after the broodstock lays eggs, broodstock is often killed in large numbers. This is a very heart-rending problem and should be prevented from the following aspects. 1. Water temperature problem: After the broodstock lays eggs, the physique is relatively weak, and it is not possible to arbitrarily put the broodstock into the spawning tank (cylinder, basin) from the rearing tank (cylinder). As a result, the fish often suffer from cold due to too high water temperature. In severe cases, the broodstock died. For this reason, the postpartum female and male broodstock should be put back into the pale green pool of equal water temperature as much as possible. If the water in the original rearing tank (cylinder) is damaged and cannot be fished, only 1/2 isothermal new water can be used to infiltrate the adjacent pool with medium-temperature clean water 1/2 into the tank (cylinder). , And then put the broodstock laid eggs into the static, and add oxygen pump oxygenation is more appropriate. 2. Feeding problem: After the goldfish have undergone intense mating and reproduction, their physique is weak, their digestive function is also affected, and their appetite is reduced. Under such circumstances, feeding should be reduced, and spawning should be stopped or eaten on the day of spawning. One-third to one-half of the usual feeding amount. And to feed the best live red worms, until the broodstock activity, normal appetite. Only normal food can be restored. 3. Injury problem: In the spawning process of broodstock, males chase vigorously; mucus, skin and scales may also be scraped off and fall off. In addition, this time it is close to the yellow mold season, the temperature is too high and the humidity is too high. It is the germ propagation. In seasons, bacteria and parasites can take advantage of body surface injury and it is easy to kill broodstock. For this reason, a small amount of nitrofurazone (ratio 2-3ppm) is usually placed in the spawning broodstock (crock) or Salt (ratio 1/5000). 4. Water quality issues: During the breeding season, the male and female goldfish’s gonads are becoming more and more mature. Whenever they are affected by new sputum and foraging, some or a few of the precocious goldfish often show tail-flicking and playfulness. Some female goldfish also secrete secretions that attract male and female fish, and male goldfish also secrete androgen hormones and even sperm after stimulation. This way, although they are not formally spawned, these secretions or sperm are dissolved in water to make water. White, if not changing the water, it will stink. If it is concentrated green water, it must not be neglected because the goldfish in the green water produce eggs, without careful observation, especially the eggs produced are quickly eaten by other fish, so it is even more difficult to find the water quality of the odor, not timely change Water can easily cause floating heads and boring cylinders.
Width:250mm*Length:1800m*Thickness:25um
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