Pigs are monogastric omnivorous animals that prefer green, tender, carbohydrate-rich and protein-rich green feed. Pigs are generally selected from the group consisting of grain alfalfa, comfrey, Rumex, Russian forage, alfalfa, chicory, and feed. Maize and other high quality pasture. However, when using forage grass to feed the pig, it must be quantified, and it can only replace part of the concentrate. It should not be used for feeding. Feeding should be adjusted according to the size of the pig.
Piglet (7 kg to 20 kg) Stage: Due to the imperfect function of the digestive system of piglets and weak resistance, the piglets have great requirements for protein, vitamins and other nutrients, and it is necessary to provide adequate supply of high quality, comprehensive nutritional piglets. Materials, feed protein content should be maintained at 20%, calcium content should be maintained at about 1%, appropriate to feed a small amount of young pasture, the daily feed should be maintained at about 1-2 kg, generally half an hour before feeding the concentrate It is advisable to feed fresh grass and not feed too much and too much ground.
Medium pig (20 kg to 60 kg) stage: The function of each part of the pig tends to be perfect, and the feed intake is increased. The digestive utilization of crude fiber in the feed is enhanced, and feeds with high protein content can be fed less, by increasing the amount of forage grass. The amount of protein, vitamins, and calcium in the concentrate supplement is insufficient. In general, the amount of daily feed can be 4-6 kg of fresh grass or about 15% of fine material, and the amount of coarse feed should be 1-2 kg. Generally, fresh grass is fed half an hour before feeding the concentrate, and it is advisable to feed it twice a day.
Big pig (above 60 kg) stage: Concentrate is formulated as follows: Because of the sound function of pigs at this stage, the ability to digest and utilize crude fiber is greatly enhanced, the adaptability is greatly improved, the growth rate is fast, and corn can be used as a concentrate feed. The amount can reach about two kilograms, do not need to add concentrated material, can be fed with fresh grass every day 6-8 kilograms or about 20% of the concentrate of the grass powder, fed the first half of the feed material is appropriate. When pigs are slaughtered, they can consider feeding 2-3 kilograms of fresh grass and about 3 kilograms of corn condiment to be fattened in the first half of the month.
The chair side CAD / CAM repair system has obvious advantages in aesthetic effect, operation time, patient participation and operation convenience. Discussion: traditional repair method: after the model is transferred, it will be sent to the technician's room for processing and making the final prosthesis. About one week, the final prosthesis will be tried on, grinded and bonded. The prosthesis was made in the technician's room. The patients need to accept the aesthetic effect of the prosthesis passively without any sense of participation. The implant repair method of chair side CAD / CAM system: obtain computer three-dimensional model by blue light scanning method, design and make personalized abutment and all ceramic restoration on computer, dye, glaze and bond after trial wearing, the whole restoration is made by chair side, patients can directly participate in the restoration design, and feel more involved. Conclusion: in the implant area of the anterior teeth, compared with the traditional implant repair method, the chair side repair system can get more satisfactory results, which is worthy of clinical application and promotion.
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