1 Select good breeds and strengthen selection and selection At present, among the breeds of long-haired rabbits raised in China, the hair growth rate of German hairy rabbits is relatively high. Each rabbit has an annual output of 1600 to 1800 g, a fine hair content of 95%, and a coarse hair content of 2% to 5%. Not tangled, good quality, suitable for the production of rabbit hair. The hairy rabbits of the French system have a moderate wool yield and a high gross hair rate. In recent years, China has successively cultivated some new varieties (lines) or groups with high yields and high quality. Different breeds (lines) or different individuals in the same line, rabbit hair production and quality vary widely. Therefore, the selection and breeding of the improved varieties must be strengthened at the same time, otherwise the quality of the population will be rapidly degraded. From a genetic point of view, the high heritability of rabbit hair yields, therefore, individual selection can be made in the production by directly measuring the amount of wool produced and the quality of rabbit hair. The amount of the first sheared wool was less than 30g in winter and spring, and less than 20g in summer and autumn. At the same time, special attention should be paid to keeping the species in proportion, strictly selecting male rabbits and mating them as planned to prevent degradation of rabbit species. 2 Use of heterosis The rabbits of different breeds or strains were selected for hybridization and the best hybridization combinations were selected to produce heterosis. It can effectively improve the production and quality of rabbit hair, reduce production costs and increase profits. This is an effective measure to increase the amount and quality of rabbit hair production. 3 Scientific feeding 3.1 Nutrient-rich and balanced nutrition of the diet is closely related to the amount and quality of rabbits' hair production and quality. For the full price of the rabbits, the nutrition is balanced in the street, especially protein and balanced amino acids. It is to increase the growth rate and yield of rabbit hair. Necessary conditions. The main component of rabbit hair is keratin, which contains 16.8% of nitrogen and 40.2% of sulphur (present as sulfanilic acid). Therefore, it is necessary to supply proteins and feeds rich in sulfur amino acids to increase the concentration of essential amino acids in the tissue fluid around the hair follicles and promote the growth of rabbit hair. Therefore, the production of rabbit hair diet should contain about 17% protein, sulfur amino acids (cystine and methionine) not less than 0.6%, lysine should reach 0.65%. 3.2 The rational use of rabbit hair growth additives It is reported that adding 1% of rabbit hair growth additives (0.3 g of zinc sulfate, 0.4 g of copper sulfate, 100 g of cobalt chloride 0.07 g, can promote rabbits to absorb sulfur amino acids), 0.03 5% to 0.05% of rare earth elements (activate or inhibit enzymes and hormones, promote hair production), pine needle powder accounts for 15% to 20% of green feed (rich in protein, vitamins, and trace elements), can be increased to varying degrees Rabbit hair production and quality. 3.3 Feeding pregnant rabbits and puppies, increasing hair follicle density Rabbit hair yield is closely related to rabbit hair density, which in turn depends on the number of hair follicles. The differentiation and production of secondary hair follicles are mainly in late pregnancy and early postnatal period. Therefore, strengthening the nutrition of pregnant female rabbits in the late period, and paying attention to supplementation of puppies, can increase the number of hair follicles in pups, and lay a foundation for the increase of wool production in the future. 4 Strengthen management and create a suitable environment After being adult, the hairy puppies are reared in single cages to maintain good sanitation. This can not only reduce the disease, but also prevent rabbits from contaminating rabbit hair with each other by biting urine and excrement, reducing hair damage, tangles, and contamination, and increasing hair quilts. quality. Regular combing of rabbit hair can prevent rabbit hair quality from being tangled. Create a suitable environment, temperature control at 5 ~ 25 °C (the first month after shearing to 20 ~ 25 °C is appropriate, the second month to 15 °C is appropriate); maintain light for 16 hours a day or so, to ensure normal hair rabbit The appetite and in vivo metabolism make the rabbit in a normal physiological state and increase the amount of wool produced. 5 Maintain the best rabbit structure General female rabbits produce about 25% more hair than male rabbits. After male rabbits are castrated, wool production can be increased by 10% to 15; rabbits before the age of 1 year have low hair yield and poor quality, and gradually increase afterwards. From 420 to 490 days of age, the gross wool production reached its highest level and began to decline thereafter. Therefore, to increase the ratio of female rabbits in rabbit populations, not to participate in castration with male rabbits, and to increase the proportion of rabbits aged 1 to 2 years in the population, it is possible to stabilize rabbit hair production and quality at a high level. 6 Reasonable hair removal Timely picking helps increase the amount of wool produced. The puppies were collected for the first time around the age of 60 days, and then once every 75 days. The interval between the summers is 40-45 days, the wool is collected once every 80 days in winter, and the hair is collected 4 or 5 times a year, which can increase the wool production. In summer, shearing is dominant, and in winter, hair removal is the main method. This will not only increase the hair yield and hair quality of the rabbit. It is also conducive to the health of rabbits. When plucking wool, it should be grading, grading, and grading. 7 Prevent Diseases and Ensure the Health of Rabbits Diseases such as rickets, rabbit rickets, and dermatomycosis can affect rabbit hair yield and quality. To do this, we must diligently examine the rabbit population and find that the sick rabbits are treated promptly. Rabbits can be treated with extinct muscle or subcutaneous injection, 0.2 mg per kilogram of body weight, 7 to 10 days, and then 1 injection; rabbit rickets can be used 1% to 2% trichlorfon solution rubbed the affected area or spray; The dermatomycosis can be treated with griseofulvin. Oral 25mg per kilogram of body weight, once a day, 15 days for a course of treatment, interval 5 to 7 days to take the second course of treatment.
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