Absorbent is also called absorbent. This substance can make the active ingredient adhere to the surface of its particles, and make the liquid trace compound additive become a solid compound, which is beneficial to the uniform mixing. It is a solid substance which can adsorb some of its components effectively from gas or liquid. It has large specific surface area, suitable pore structure and surface structure, strong adsorption capacity for adsorbate, generally does not react with adsorbate and medium, is easy to manufacture and regenerate, and has excellent adsorption and mechanical properties. Adsorbents are generally used in industrial production, so adsorbents can be divided into six categories according to the common industrial use.
1. silica gel, it is mainly used for drying, gas mixture and separation of petroleum components.
2. alumina, it is also a dehydrating adsorbent.
3. activated carbon is mainly used for water treatment, decolorization and gas treatment.
4. polyacrylamide is mainly used for domestic sewage and organic wastewater.
5. zeolite molecular sieve for gas adsorption separation, gas and liquid drying;
6. carbon molecular sieves mainly act as transport channels, while micropores play the role of molecular sieves.
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A: Yes, we can provide some videos for reference. (yes, we can provide some videos).
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Nce, Flexible payment can be negotiated.
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First, to provide nutrients for a comprehensive feed fodder nutrition insufficiency, lack of protein supply, will affect the normal development of the egg, so that reducing the ovulation, reduce the conception rate. Therefore, it is very important for sows to provide nutrient-rich feeds, especially protein feeds, during their free time. In general, protein feed should account for 12% of each kilogram of diet, and there should also be a certain amount of animal protein in the protein feed composition. At the same time, it is necessary to satisfy the sow's needs for various minerals and vitamins, and to supply enough calcium, vitamin A, and vitamin D so that the sow can maintain proper body weight and energy.
Second, according to the lyrical condition to feed the sow too thin or too fat will produce non-estrus, ovulation less, weak egg vigor and other phenomena, easy to cause empty arms, stillbirth and other consequences. For pregnant sows with poor body condition, “short-term excellent feeding†is required before mating, and high energy level feeds are provided 10-15 days before mating, which has a good effect on increasing the number of sows ovulated and improving egg quality. For fattening sows to reduce the feeding of concentrates, use some green feed to promote the appropriate carcass.
Third, to improve environmental conditions Environmental conditions are good for sows estrus and ovulation have a great influence. Adequate sunlight and fresh air help to promote estrus and ovulation in sows. Clean indoor hygiene and temperature are good for ensuring multiple ovulation and ovulation for sows. Therefore, it is necessary to drive the sow to exercise outdoors, keep the room ventilated, dry, and clean, and do a good job of cooling the sun.
Fourth, to repeat the mating feeding sows, especially improved sows, sometimes estrus symptoms are not very clear, in order to improve the conception rate, it is appropriate to repeat breeding, can be allocated in a love period 2-3 times. Normally 19-20 hours after the start of oestrus, the first breeding, and 12-18 hours after the interval of breeding. This can effectively reduce the gap caused by breeding technology factors.
Four points for empty sow breeding management
In order to increase the fertility rate of sows for breeding, it is necessary to grasp the feeding and management of sows during the empty period and do the following four tasks: