The temperature gradually increased. The Fisheries Technical Instructor of the Liangshan County Fisheries Bureau of Jining City, Shandong Province, went deep into the pool and instructed the farmers to stock their spring fish stocks.
One is pond water quality. The fertilization of fertilizers ensures that the fish species to be put in will have enough food to promote the growth and development after spring.
The second is to grasp the timing of good fish species. After the convulsions, the water temperature rose to 8°C-12°C and the fish species could be released. At this time, the fish species had weaker activity and the fishing transportation and the lower pond were not easy to be injured. Select sunny day morning stocking, water temperature should not exceed 3 °C above stocking.
The third is to put in suitable specifications and good color of the fish species. Farmers need to select fish species of different specifications according to the farming plan. They plan to develop commercial fish in that year. Carp size 50g/tail, carp size 100g/tail and grass carp size 100g/tail. The larger the species size, the higher the survival rate and the easier to feed, and the amount to be put in place is based on the breeding skill level and experience of the farmer.
The fourth is the disinfection of fingerlings. Before stocking, the fish should be washed with 3%-5% saline for 10 minutes-20 minutes to kill the pathogenic bacteria and parasites, reduce the occurrence of fish diseases, and increase the survival rate of the fish species.
The fifth is daily management. After fish stocking, we must strengthen management in time. Appropriate feeds are put in place at the right time to allow fish species to restore their physique and accelerate growth. At the same time pay attention to the occurrence of watery mildew in spring.
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