Some time ago, the heavy rain in the central and southern regions of Hebei Province was large enough to have a negative impact on aquaculture production. In particular, in the case of rabbit breeding, after the snow melted, the temperature dropped sharply and the breeding ground was muddy and icing. Improper management not only causes an increase in feed consumption, but also increases the mortality of Rex rabbits and seriously affects the quality of fur, which in turn leads to a substantial decline in the efficiency of integrated breeding. For this reason, it is recommended that Rex Rabbit Breeders do the following 5 jobs after the heavy snowfall:
In winter, the outside temperature is low. It is very necessary to do a good job in the cold protection of rabbit houses. It is necessary to keep the temperature relatively stable, and avoid colds caused by hot and cold. The temperature of the rabbithouse is maintained at 30°C～32°C, and the rabbit is suitable for 10°C～25°C. Excessive temperatures can cause loss of appetite, indigestion, decreased libido, and reproductive difficulties. If the temperature is too low, it will affect the growth and development of rabbits and increase the consumption of feed. Therefore, to close the doors and windows, to prevent the thief wind invasion, outdoor Sheshan should be hanging a good straw curtain to prevent cold wind intrusion, causing unnecessary losses.
Cleaning moisture resistance is often accompanied by temperature, high temperature and humidity or low temperature and low humidity is very unfavorable to the growth and development of rabbits, high temperature and humidity will affect the cooling of rabbits. Especially harmful to breeding male rabbits. Low temperature and high humidity will increase the amount of heat dissipation, so that rabbits produce a cold feeling, especially rabbits and young rabbits. When the temperature is appropriate and moist, it is conducive to the reproduction of bacteria and parasites, which can cause various diseases and affect their growth and reproduction. Therefore, the relative humidity in the rabbit house should be kept as constant as possible, with 60% to 65% being appropriate, and generally not less than 55% and not more than 70%.
In winter, the doors and windows are closed tightly, and the ventilation time is relatively reduced. It is necessary to remove the excrement in time, introduce fresh air, minimize the stay time of rabbit excrement in the house, make use of noon time, do a good job in ventilation and ventilation, and keep the air in the house clean. Reduce the content of toxic and harmful gases and effectively control the occurrence of respiratory diseases. There are toxic and harmful gases in the house, mainly hydrogen, sulfur gas, carbon dioxide, etc., which have a direct toxic effect on the rabbit body. The concentration of ammonia in the house should not exceed 0.004%. If it reaches 0.005%, the rabbit's respiratory rate can be slowed down, tears and stuffy nose can occur. More than 0.01% will lead to a significant increase in tearing, runny nose and mouth lice in rabbits. Hydrogen sulfide must not exceed 0.00066% and carbon dioxide must not exceed 0.35%. Actual work does not need to be measured. People can feel comfortable when they enter the house.
Increased illumination Illumination plays an important role in regulating the physiological functions of rabbits. Appropriate lighting helps to increase rabbit metabolism, increase appetite, and promote calcium and phosphorus metabolism. Illumination also has bactericidal effect and keeps the house dry. Diseases and other effects, especially those affecting fertility. According to practical experience, reproduction of female rabbits under light for 14 hours to 16 hours per day can obtain the best breeding effect, and the number of weaned rabbits can be increased by 8% to 10%. At present, small rabbit farms generally use natural light, and the lighting area should be taken into account. About 15% of rabbit houses. The incident angle of sunlight is not less than 25 to 30; large-scale rabbit farms use artificial lighting or artificial lighting, and light intensity is appropriate at 4 watts per square meter. It has been proved that under the condition of no light at 20°C to 24°C, Sheweng supplements the light for 2 hours per square meter. The female rabbit has a certain reproductive ability, but the conception rate is very low, and the fertility rate of a single breeding is only about 30%. When the lighting is increased to 15 watts per square meter and the lighting time is extended by 2 hours, the fertility rate of a single breeding can reach 50%. Therefore, in raising rabbits, everyone should pay enough attention to the illumination.
In winter, due to the low feed temperature, lack of green feed, low nutritional levels, thin rabbits, energy feeds, and vitamin deficiencies, daily feeds increase by about one-third over other seasons. To feed more high-energy concentrates, such as corn, bran, soybeans, etc., you should also try to feed feeds such as leaves, carrots, and barley malts to supplement the deficiency of vitamins. It is advisable to crush the dried roughage and leaves. After adding a small amount of bean dregs or bran, mix well with water and feed. At the same time pay attention to drinking water, should drink warm water in the winter, at night to feed a feed. However, it is forbidden to feed rabbits with frozen radish, in order to reduce the occurrence of gastrointestinal diseases.
The purpose of disease prevention and disinfection is to eliminate the external pathogenic microorganisms, cut off the infectious agents, and prevent the spread of the disease. Due to the different objects to be disinfected, the disinfectant drugs and methods used are also different. Food troughs, drinking utensils, etc., can be used 2% to 3% fire alkali water or 3% to the Soviet Union children's sterilization; metal rabbit cages and metal utensils, can be used torch, flame disinfection or use 5% to Su children disinfection; wooden, bamboo Rabbit cages and utensils, disinfected with 2% to 3% pyrogenic alkali water, 5% susu, and 0.1% peroxy acetic acid; 10% to 20% lime water, 5% bleach, or 2% to 3% available on sports grounds and sidewalks Fire alkali spray. The feces should pile up and ferment.
In the winter of vaccine injection, it is the period of epidemic and epidemic of rabbit infectious diseases such as rabbits, Pasteurella and Clostridium perfringens. It is necessary to immunize all rabbits regularly to improve the immunity of rabbits. The "Zhenbo" two-joint seedlings and the "Yao-Bawei" triple seedlings can achieve one-pronged or two-pronged or three-pronged anti-epidemic purpose to ensure the healthy development of the Rex rabbit industry.
In winter, the outside temperature is low. It is very necessary to do a good job in the cold protection of rabbit houses. It is necessary to keep the temperature relatively stable, and avoid colds caused by hot and cold. The temperature of the rabbithouse is maintained at 30°C～32°C, and the rabbit is suitable for 10°C～25°C. Excessive temperatures can cause loss of appetite, indigestion, decreased libido, and reproductive difficulties. If the temperature is too low, it will affect the growth and development of rabbits and increase the consumption of feed. Therefore, to close the doors and windows, to prevent the thief wind invasion, outdoor Sheshan should be hanging a good straw curtain to prevent cold wind intrusion, causing unnecessary losses.
Cleaning moisture resistance is often accompanied by temperature, high temperature and humidity or low temperature and low humidity is very unfavorable to the growth and development of rabbits, high temperature and humidity will affect the cooling of rabbits. Especially harmful to breeding male rabbits. Low temperature and high humidity will increase the amount of heat dissipation, so that rabbits produce a cold feeling, especially rabbits and young rabbits. When the temperature is appropriate and moist, it is conducive to the reproduction of bacteria and parasites, which can cause various diseases and affect their growth and reproduction. Therefore, the relative humidity in the rabbit house should be kept as constant as possible, with 60% to 65% being appropriate, and generally not less than 55% and not more than 70%.
In winter, the doors and windows are closed tightly, and the ventilation time is relatively reduced. It is necessary to remove the excrement in time, introduce fresh air, minimize the stay time of rabbit excrement in the house, make use of noon time, do a good job in ventilation and ventilation, and keep the air in the house clean. Reduce the content of toxic and harmful gases and effectively control the occurrence of respiratory diseases. There are toxic and harmful gases in the house, mainly hydrogen, sulfur gas, carbon dioxide, etc., which have a direct toxic effect on the rabbit body. The concentration of ammonia in the house should not exceed 0.004%. If it reaches 0.005%, the rabbit's respiratory rate can be slowed down, tears and stuffy nose can occur. More than 0.01% will lead to a significant increase in tearing, runny nose and mouth lice in rabbits. Hydrogen sulfide must not exceed 0.00066% and carbon dioxide must not exceed 0.35%. Actual work does not need to be measured. People can feel comfortable when they enter the house.
Increased illumination Illumination plays an important role in regulating the physiological functions of rabbits. Appropriate lighting helps to increase rabbit metabolism, increase appetite, and promote calcium and phosphorus metabolism. Illumination also has bactericidal effect and keeps the house dry. Diseases and other effects, especially those affecting fertility. According to practical experience, reproduction of female rabbits under light for 14 hours to 16 hours per day can obtain the best breeding effect, and the number of weaned rabbits can be increased by 8% to 10%. At present, small rabbit farms generally use natural light, and the lighting area should be taken into account. About 15% of rabbit houses. The incident angle of sunlight is not less than 25 to 30; large-scale rabbit farms use artificial lighting or artificial lighting, and light intensity is appropriate at 4 watts per square meter. It has been proved that under the condition of no light at 20°C to 24°C, Sheweng supplements the light for 2 hours per square meter. The female rabbit has a certain reproductive ability, but the conception rate is very low, and the fertility rate of a single breeding is only about 30%. When the lighting is increased to 15 watts per square meter and the lighting time is extended by 2 hours, the fertility rate of a single breeding can reach 50%. Therefore, in raising rabbits, everyone should pay enough attention to the illumination.
In winter, due to the low feed temperature, lack of green feed, low nutritional levels, thin rabbits, energy feeds, and vitamin deficiencies, daily feeds increase by about one-third over other seasons. To feed more high-energy concentrates, such as corn, bran, soybeans, etc., you should also try to feed feeds such as leaves, carrots, and barley malts to supplement the deficiency of vitamins. It is advisable to crush the dried roughage and leaves. After adding a small amount of bean dregs or bran, mix well with water and feed. At the same time pay attention to drinking water, should drink warm water in the winter, at night to feed a feed. However, it is forbidden to feed rabbits with frozen radish, in order to reduce the occurrence of gastrointestinal diseases.
The purpose of disease prevention and disinfection is to eliminate the external pathogenic microorganisms, cut off the infectious agents, and prevent the spread of the disease. Due to the different objects to be disinfected, the disinfectant drugs and methods used are also different. Food troughs, drinking utensils, etc., can be used 2% to 3% fire alkali water or 3% to the Soviet Union children's sterilization; metal rabbit cages and metal utensils, can be used torch, flame disinfection or use 5% to Su children disinfection; wooden, bamboo Rabbit cages and utensils, disinfected with 2% to 3% pyrogenic alkali water, 5% susu, and 0.1% peroxy acetic acid; 10% to 20% lime water, 5% bleach, or 2% to 3% available on sports grounds and sidewalks Fire alkali spray. The feces should pile up and ferment.
In the winter of vaccine injection, it is the period of epidemic and epidemic of rabbit infectious diseases such as rabbits, Pasteurella and Clostridium perfringens. It is necessary to immunize all rabbits regularly to improve the immunity of rabbits. The "Zhenbo" two-joint seedlings and the "Yao-Bawei" triple seedlings can achieve one-pronged or two-pronged or three-pronged anti-epidemic purpose to ensure the healthy development of the Rex rabbit industry.
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.
Desktop Type Dental Milling Machine
Dental Equipment For Lab,Dental Implant Milling Machine,Titanium Dental Milling Machine,Glass Ceramic Dental Milling Machine
Shandong Carved Intelligent Technology Group Co.,Ltd , https://www.demetdent.com