Coarse-haired long-haired rabbits refer to long-haired rabbits that contain more than 15% coarse hair in rabbit hair. Why should we promote the development of such rabbits? The main thing is that coarse-haired rabbit hair can be used for the production of knitwear. This type of fabric has rough exposed hair, strong three-dimensional effect and elegant appearance. It is very popular in Japan, South Korea and Southeast Asia. At present, on the international rabbit hair market, coarse wool rabbit hair and its products are very tight, and the price is about 40% higher than that of ordinary rabbit hair. China is a big country of rabbit hair export, but in the past, it only paid attention to the amount of wool production and neglected the proportion of coarse hair in the breeding of rabbits and production, thus affecting the competitiveness in the international market. Therefore, accelerating the breeding and promotion of rough-haired long-haired rabbits will more effectively occupy domestic and foreign rabbit hair markets. In order to change the backward status of the coarse hair content in the rabbit's wool fibers, the Zhejiang Academy of Agricultural Sciences uses a high proportion of coarse hair and a low production rate of rabbits to cross breed with high yield and low gross hair rate of the German rabbits. Breed a new type of hairy rabbit. This strain is characterized by high average annual wool production, with an average of 959 grams; the coarse hair rate is high, with an average of 15.94%. The good traits of this strain of longhair rabbits also showed stable hereditary traits, uniform body appearance, good growth and development, and good reproductive performance. The litters had more than 6 litters and were mothers with strong maternal self-breeding. The survival rate of puppies was high. As a fine population, coarse hairy long-haired rabbits need good husbandry and management. The main points of breeding techniques are as follows:
First, selection and mating requires the selection of rabbits that are physically robust, have a strong sexual desire, have good maternity, are close relatives, have a high yield, and have a high rate of hirsutism. According to the characteristics of coarse-bred rabbits, homologous matching is preferred, that is, excellent male and female rabbits with the same or identical performance characteristics are selected for breeding in order to obtain similar superior offspring. Take the example of a child with 4 babies born a year. Among them, in the fall season, after the high-temperature stress, the sharpness of the spermatozoa of the coarse-bred rabbit male rabbit recovers quickly. Therefore, breeding can be performed more than 10 days earlier than the average rabbit. If you choose to leave the next generation of rabbits, it is better to use rabbits produced in spring and autumn.
Second, feeding and management According to the size of the rabbit, a reasonable allocation of green, refined, roughage, two meals a day feeding 0.5 to 0.75 kg of grass, 100 to 150 grams of pellet feed. Its nutritional level requires digestion of 10 to 11 MJ/kg, crude protein 16% to 17%. At the same time, according to the characteristics of the rabbit digestive tract, coarse feed should account for about 30% in the compound feed, so that the crude dietary fiber reaches 12% to 16%. The young rabbits and young rabbits were in the growth stage. 0.2% lysine and methionine were added to the compound feed, and sufficient drinking water was provided. Each adult rabbit and young rabbit over 3 months old should be raised in a single cage.
Third, Aberdeen, young rabbits cultivate early attention and young rabbits in the early management and breeding, so that breeding rabbits strong disease resistance, fast growth, high yield. In order for the pups to eat enough milk, it is advisable for the female rabbits to raise 4 to 5 litters per litter, start eating feed around 18 days after birth, and gradually feed a small amount of easily digestible and nutritious feed, such as soy milk, milk, and fresh Grass and so on. Due to the small stomach volume, weak digestion, fast growth and development, the pups need to feed less, eat more breastfeeds, use breast milk as their main starting point, and supplement their breast milk. After 30 days of age, the feed is mainly feed, supplemented by breast milk until Isolation. After weaning, the young rabbits can be raised in groups of 4 to 5 in one cage and cut all the milk hairs within one week to enhance blood circulation and promote growth and development. At the same time feed feeds that are easily digestible, small in size, high in energy and protein levels, should be fed with fewer meals, to prevent diarrhoea and diarrhoea due to more than one feed, resulting in death.
Fourth, epidemic prevention and health An important task is to clean the cage once a day, morning and evening, cage wall and backing, hoppers regularly wash and disinfect. In the hot season, the indoor ventilation is used. In the afternoon, the ground is cooled with cold water, and in the winter, the plastic film is used to close the channel to block the cold and cold winds from invading. At the same time, the ammonia in the rabbit house is regularly drawn. Before and after the rainy season from May to July each year, anticoccidial drugs should be added to the mixed feed, for example, 150 mg of chlorpheniramine per kilogram of feed, or 1% with sulfamethazine, for weaned rabbits. Even feeding 45 days can control the occurrence of coccidiosis. If coccidiosis has already occurred, double the dose of the above two drugs. In order to prevent coccidiosis from producing drug resistance, it is often best to replace several drugs in combination to achieve better results. In the spring and autumn, regular injections of rabbit lice and Borrelia bolus vaccine are used to prevent infectious diseases.
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