Since the beginning of spring, there have been only a few rains in most parts of the country. In particular, the total rainfall in some southern provinces is less than in previous years. Therefore, the water quality in the pond is not improved, and most of the pond water quality is aging. The phenomenon of fish floating due to lack of oxygen often occurs, resulting in loss of fishery production. Due to less rainfall, most ponds in some southern provinces have shallow water storage at this stage, but the temperature and water temperature are relatively high. The transparency of the water is below 25 cm, and the metabolism of the fish is very strong. At this time, it is necessary to reduce the amount of feed, especially if it is impossible to vote. Feeding granular feeds is best done by feeding a single feed, such as glutinous rice cake, oilseed meal, or green grass. Because there is no distiller's grains, cakes, and cakes in a single feed, the water will not be made fat. In grain feed, the proportion of distiller's grains, vegetable cakes and cotton cakes accounted for 45%-50%, both of which contain a lot of plant proteins, oils and fats, and it is easy to make water fat. If the transparency of the pond water is less than 25 centimeters, the color of the water will be dark blue. This kind of water is rich in nutrients. If there is no clear water added, the phenomenon of anoxic floating head will appear after dawn every morning, especially the hot weather is more prominent. Therefore, it must be noted in the management that there must be more patrol ponds at night, as long as the fish floats out of the water, it is necessary to turn on the oxygen in time, otherwise the dead fish will be flooded. In the dry season, feed less. The amount of bait per day is controlled between 1% and 1.5% of the fish weight, with a maximum of 2%. It is recommended that in the water shortage season, feed should only be made once a day in the morning and the fish should be fasted overnight to ensure safe production. Psa Nitrogen Generator,Psa Nitrogen Machine,Psa Nitrogen Generation System,Psa Nitrogen Gas Generator Hangzhou Zhongju air separation equipment manufacturing Co., Ltd , https://www.hzzjkfzz.com