In today's swine market downturn and swine disease, in order to make pig production more economical, we must reduce feed costs. One way to reduce feed costs is to try to replace the increasingly expensive conventional feed ingredients with new feed ingredients. New animal protein resources unconventional nature of protein a lot of resources, such as insects pink, pink snails, earthworms powder. In practice, Musca domestica larvae powder has been used to partially replace fishmeal in feed. The attempt to replace the fish meal with silkworm cocoons has yielded initial results. Silkworm pupa contains some growth-promoting unknown factors, which can improve feed conversion rate, sow fertilization rate and embryo survival rate. New energy feed resources Pigs are omnivorous monogastric animals that do not use high-fiber feeds effectively like ruminants. However, after pre-digesting the fibrous feed ingredients with microbial enzymes, they can be used in pig feed. Other feed ingredients such as oats, barley, sunflower cake, etc. can be utilized by similar treatments. Alternative ingredients in food crops Tested, wheat, sorghum, etc. can be used as substitutes in cereal crops. Compared with corn, wheat has many advantages, and its protein content is 10% to 17% higher than corn. Broken rice, barley, etc. can replace 50% of the corn, and there will be no adverse symptoms. It will be better to replace 40% of the corn with sorghum. Industrial and agricultural waste products or livestock feed ingredients are mostly agricultural by-products or waste. Under the conventional feed preparation method, more meat powder, bone meal, blood meal, corn protein powder and oil cake are used. Other products such as leather powder, distilled dry cereal flour, fruit and vegetable waste are rarely used. Algae substitutes are commonly found in rivers, oceans, lakes, and ponds. Algae contains about 50% protein, so algae can be cultivated in the waste water discharged from pig farms, and then processed as a protein for pig feed. substitution. Probiotic feed additive chemical feed additives may remain in the animal products, and cause drug resistance of pathogenic microorganisms, the use of smaller and smaller. The successful application of probiotics in pig diets has opened up new ideas for people looking for alternatives to chemical feed additives. Tests have shown that the addition of probiotics to pig diets with poor palatability, especially under stress, can effectively improve the performance of pigs with considerable economic benefits.
What is Oil Seal, a component of machine that seals lubricants, an oil seal is constructed of rubber,garter spring, and an internal case. While preventing the leakage of lubricants,water,or chemicals,an oil seal also prevents the entry of dust and dirt into a machine.
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Oil seal also called as dynamic seal is use to prevent leakage of fluid between two components having relative rotary or sliding motion.
Skeleton oil seal is normal for a variety of mechanical bearing, especially the rolling shaft parts, to guarantee the normal work of the bearing and other pure rotational parts. its function is to put the oil cavity and the outside world, photosensitive oil sealing, sealing outside and dust.
U shaped coil is commonly used in the hydraulic cylinder seal, it is a kind of typical lip seals, whether for piston rod, can obtain good effect. Polyurethane u shaped coil is mainly used in hydraulic cylinder, it has good mechanical properties, good oil resistance, is the most commonly used in hydraulic oil cylinder, high sealing material.
Oil Seals type nomarl use TC, TB, HTCL, VC, DC, HTBR, KB, KC, SB, SC, TA, TBC, USH, LBH, UPH, ODU, IDU, WAI, DHS, UHS, UNS, UN, YX, Yx, J, JA -
The type and features of the various rubber materials used in oil seals, such as PU, TPU, CPU, NBR, HNBR, ACM, VMQ, FKM, PTFE, Fabric and so on.