A Detailed Explanation of the Artificial Breeding Methods and Technical Key Points for Yellow Croaker
The yellow croaker is a relatively rare fish species. The yellow croaker on the market mainly comes from fishermen catching fish in coastal areas, but now artificial breeding of yellow croaker has gradually appeared, among which the most common are pond culture and cage culture. Below is an introduction to the artificial breeding methods for yellow croaker.
1. Breeding Preparation
Because yellow croaker is relatively difficult to raise, sufficient preparation is needed before breeding. If cage culture is used, then the cages must be arranged according to the specifications of the yellow croaker. Usually, the water depth in the cage is about four meters. Second, in order to avoid abrasions on the yellow croaker, it is best to choose cages made of relatively soft materials for breeding. If pond culture is used, then a location close to a water source must be selected, and the pond must be disinfected, with the water depth kept at about two meters. Finally, oxygen supply equipment and equipment for regulating water quality, etc., also need to be prepared. Once everything is fully prepared, formal breeding can begin.
2. Fingerling Selection
Yellow croaker is relatively precious, so when selecting fingerlings, great care must be taken. This can improve the survival rate of yellow croaker breeding and reduce losses. We usually choose fingerlings that are uniform in size, robust and lively, with intact scales, glossy skin, no internal or external injuries, and no diseases for stocking. Only such a fish population is conducive to unified management.
3. Fingerling Stocking
Before stocking the fingerlings, we need to disinfect them first, because the fingerlings purchased may carry some harmful substances such as parasites and bacteria. If they are stocked directly, it will not only pollute the water body but also affect the growth of the fish population. We usually place the fingerlings in formalin for about half an hour, then take them out and put them in clean water for about one day, and finally put the fingerlings into cages or ponds for rearing.
4. Feeding Management
The yellow croaker mainly feeds on frozen chub mackerel and spotted mackerel. During feeding, we need to thaw the feed first, then make it into minced meat and add some specialized fish feed, and feed it at fixed locations. At the same time, we can also appropriately feed some small fish, small shrimp, and scallop meat, so that the yellow croaker can have balanced nutrition during growth and will not suffer from malnutrition. Newly stocked yellow croaker usually only needs to be fed about twice a day, that is, in the morning and in the evening. After they grow larger, the amount of feed can be gradually increased.
5. Daily Management
The daily management of yellow croaker is relatively important. It has somewhat high requirements for water quality. If pond culture is used, the water must be changed every day, and the pond must be cleaned and disinfected at irregular intervals. For cage culture, it is only necessary to remove the remaining food residue after each feeding, and then at irregular intervals clean the mud and dirt on the cages and disinfect them. Second is to pay attention to water depth. For cage culture, a red tide warning must be set up at the breeding site, so that the depth of the cages can be adjusted in time. For pond culture, the water must be changed every day, so after each water change, it is enough to keep it at a depth of two meters. Finally, there is the prevention and control of diseases and insect pests. Some agents that enhance resistance can be mixed into the feed. Diseased fish found should be taken out in time for isolation and treatment, and at the same time disease prevention should be carried out for the fish population.
The above is the introduction by Tuliu.com to the artificial breeding methods for yellow croaker. The protein content in yellow croaker is very high. The demand for yellow croaker on the market is now growing day by day. After heavy fishing, the annual number of wild yellow croaker is also gradually decreasing, so there is still great prospect in breeding yellow croaker.