The environmental requirements of muddy and healthy breeding

High-quality aquatic products come from a good environment. Optimizing the production environment is a prerequisite for healthy breeding. Environmental quality requirements for producing areas include water environment and soil environment.

First, the water environment

The water environment is the basic condition for the survival of the loach. The quality of the water source and the pond environment directly affect the output and quality of the loach.

(A) The water source must have a good water supply. The stocking densities of the rearing ponds are relatively high, and they must have sufficient amount of bait supply. The excrement is much higher than the conventional ponds. The dissolved oxygen in the pool water is often low, the water quality is easily deteriorated, and the muddy floating heads are easily caused, for example, it is impossible to raise them in time. New water with high dissolved oxygen content can easily lead to deterioration of water quality, affecting the growth of loach, and in severe cases, it can easily cause the occurrence of mud loach or cause massive deaths. The source of water is preferably unpolluted river water, lake water or large reservoir water. This type of water-soluble oxygen has a high quality and is suitable for loach growth. When using well water, well water can be pumped to a reservoir first, allowing it to naturally aerate and warm up, and can also be used as a source of water after physical and chemical treatment. The indicators of source water quality shall comply with the regulations for freshwater aquaculture water sources in the “Quality of Freshwater Aquaculture Water Quality of Non-environmental Food Aquaculture Waters” of the Ministry of Agriculture, in order to ensure that the requirements of the loach on water quality are met to the maximum, so that the loach can be rapidly fattened under relatively favorable and safe conditions. grow into.

(2) The aquaculture water quality requires a pH value of 7 to 8.5, a dissolved oxygen content of more than 5 mg/l, a total hardness of 89.25 to 142.8 mg/l in terms of calcium carbonate, an organic oxygen consumption of less than 30 mg/l, and vulcanization. Hydrogen is not allowed to exist.

Second, the soil environment

The soil in the pond is the best in loam, followed by sandy loam and clay, and the sandy soil is the worst. The loam has good air permeability, the clay is easy to be compacted and has poor air permeability, and the sandy soil has large water permeability, so it is not easy to keep water and is easy to collapse. The bottom of aquaculture ponds should be free of waste and domestic garbage, no large-scale plant debris and animal carcasses, and there should be no difference in color, smell and smell, and natural structure. The maximum content of toxic and hazardous substances in bottoms should meet the requirements in the "Aquatic Product Safety, Quality, and Quality of Producing Environment for Environmentally-friendly Aquatic Products", and the bottom material should be colorless, odorless and of a natural structure.

Alcohol Corn Gluten Feed

Alcohol Corn Gluten Feed,Custom Corn Gluten Feeds,Corn Gluten Feed To Chickens,Nutritional Corn Gluten Feed

JILIN COFCO BIO-CHEM AND BIO-ENERGY MARKETING CO., LTD , https://www.cofco-biotech.com