Experience of raising and managing Rex rabbits in winter

The management of raising Rex rabbits is extremely important, especially in winter, when the temperature is low, the sunshine time is short, and there is a lack of green feed, which brings some difficulties to feed rabbits. If the feeding management is improper, it will not only increase the expenditure due to the increase of feed consumption and mortality, but also seriously affect the fur quality, but also restrict the rapid development of production. The focus of winter feeding and management is to do a good job of cold prevention and heat preservation and winter breeding. The following points should be paid attention to in winter feeding and management of Rex rabbits.

Do a good job of cold prevention and heat preservation Rex rabbit is afraid of heat, more cold-resistant, but its cold resistance has a certain limit, the temperature drops below 5 ℃ will feel uncomfortable, naked colorless baby rabbits are especially afraid of freezing, less than 10 ℃ will freeze stiff, 5 ℃ below will freeze to death. Therefore, in winter to do a good job of cold protection and warmth is very important for raising Rex rabbits. 1. Although the winter temperature is low, except for newborn rabbits, the rabbit house temperature is not required to be very warm, but it is required that the temperature should be relatively stable and not hot and cold. In winter, the best temperature for Rex rabbit growth should be 15 ℃ ~ 25 ℃. Overcooling and overheating have great influence on its physiological function, which should not be lower than 10 ℃ and higher than 29 ℃. two。 Increase feeding density, rely on rabbit body heat to increase temperature; young rabbits should not be raised in a single cage, young rabbits must be moved to a warm room. 3. When raising rabbits indoors, close the doors and windows to prevent the attack of thieves; when raising rabbits outdoors, grass curtains should be hung on the cage door to prevent cold wind from invading. Try to keep the ventilation to a minimum in order to preserve the heat generated by the rabbit. 4. Sufficient and reasonable light is a necessary condition for the normal growth and development of Rex rabbits. Artificial light and natural light are usually used. Transparent plastic film can be covered before and after the rabbit house to make full use of solar light, increase the amount of indoor lighting as much as possible, and achieve artificial warming. The Rex rabbit can obtain good production performance under the condition of 12 ~ 16 hours of light every day. Conditions can also be installed in the house heating equipment, such as heating, electric heater, stove and so on. Strengthen feeding and management 1. Supplement feed supply. Because of the low temperature in winter, rabbits consume more calories, so the daily feeding amount of both large and small rabbits should be 20% to 30% higher than usual, and the proportion of high-energy feed should be increased appropriately. In addition, due to the lack of green feed in winter, vitamin deficiency is easy to occur. We should try to feed some vegetable leaves, carrots, barley malt and tuber feed to supplement vitamin deficiency. two。 Add a small amount of bean dregs or bran to the powder, mix it with warm water and then feed it, and add it less frequently to prevent the leftovers from freezing. 3. When using coarse powder feed, it should be reasonably wet mixed. The coarse powder should be mixed and stirred evenly, and before feeding, press 1 ∶ 1 to mix with warm water. Generally, when grasping the wet material by hand, the degree of water seepage between fingers should not drop. It should not be mixed more than once, so as to maintain the freshness and palatability of the feed. 4. Reasonable collocation of feed. Rex rabbit is a herbivore, because artificial breeding completely feeding grass can not meet the nutritional needs of Rex rabbit, so in daily feeding, in addition to feeding some fresh feed in a planned way, it is necessary to be equipped with full-price pellet feed according to a certain proportion. The advantages of full-price pellet feed are: it is not cold in winter, not moldy in summer, Rex rabbit likes to eat, nutrition is comprehensive. When mixed feeding, the green feed should be mixed, fresh and clean, and be fed with enough concentrate. When eating freely, the content of various nutrients in the mixed feed should be controlled at 10.46 kJ ~ 11.72 kJ per kilogram of feed, 18% in the early stage of crude protein, 14% in the later stage, 3% 5% in crude fat, 12% 15% in crude fiber, 0.5% in calcium, 0.7% in phosphorus and 0.3% in phosphorus. Full price combined with pellet feed should be selected for large-scale feeding. When bulk breeding, it is appropriate to take the first thick and then green, and then make up the concentrate. To do a good job of rabbit house hygiene and overwintering deworming, special attention should be paid to rabbit house environmental hygiene in winter, and rabbit houses should be disinfected regularly. Disinfection should be rotated with more than two kinds of disinfectants to prevent drug resistance; the rabbit house should be cleaned frequently, remove feces and dirt every day, prevent moisture with quicklime, keep the house clean and dry bath, to prevent the accumulation of feces and urine, reduce the production of irritating gases such as ammonia and hydrogen sulfide, and prevent respiratory diseases such as rhinitis and pneumonia. In addition, disinfection should be taken seriously and the rabbit house should be kept dry. In order to keep warm, the tightness of the rabbit house increases in winter, but poor ventilation, ammonia, hydrogen sulfide, sulfur dioxide and other harmful gases increase, which is easy to induce Rex rabbits suffering from eye conjunctivitis, rhinitis and other diseases, therefore, to install ventilation devices, and strengthen automatic ventilation, you can open doors and windows from 11:00 to 2 p.m. Every day, use the natural wind to breathe, and grasp the smell at any time. In order to make the Rex rabbits survive the winter safely and strengthen their physique, ivermectin or avermectin and Quechongjing were used before overwintering (late autumn). All adult rabbits and young rabbits were treated with parasite in vivo and in vitro to prevent the invasion and harm of parasitic diseases. Do a good job of winter breeding

While doing a good job of cold prevention and heat preservation, it is very important to arrange winter reproduction and winter breeding, which has the advantages of high survival rate and high rate of birth. The young rabbit has the advantages of fast growth, large size, strong physique and high wool yield, so it is the most suitable for breeding. As long as we do a good job of preventing cold and keeping warm, good results can still be obtained in winter breeding, especially the survival rate of young rabbits is high and there are few diseases. In the actual production, as long as the heat preservation of the litter box is done well, the bedding grass is dry, soft, strong heat preservation, good hygroscopicity and keeping the temperature above 5 ℃, a better effect of winter propagation can be obtained. With the decrease of air temperature in winter, inactive pathogenic microorganisms, less infectious pathogenic microorganisms, less rabbit disease and high survival rate of young rabbits, it is possible to breed and raise Rex rabbits in winter as long as they create a constant temperature environment for Rex rabbits. Although the estrus of female rabbits is not obvious, they can estrus and ovulate normally. Therefore, we should seize the opportunity to breed female rabbits at noon when the weather is sunny, windless and sunny. Breeding should grasp the agricultural proverb: pink early, black purple late, bright red at the right time. In order to improve the conception rate, repeated breeding or double breeding can be used. In addition, 12 days after mating, the female rabbit should touch the fetus in time. The method of touching the foetus is to hold the ear and collar skin of the female rabbit with the left hand, fix the female rabbit on the flat ground or table, make the rabbit head face the chest of the foetus toucher, put the right hand under the belly of the female rabbit, and gently touch the embryo from back to front. The embryo is spherical and elastic, and the dung ball is hard spherical and inelastic. The empty pregnant female rabbits that are not pregnant should be replenished in time. In addition, the lactation period of winter breeding young rabbits should be long, generally do not engage in blood matching, it is appropriate to reproduce 1 ~ 2 births.