Improve the quality of Rex rabbit fur should be a good "six off"
2020-07-18 12:17:46
The quality of the breeding of rex rabbits mainly depends on the quality of the fur. After years of cultivation, the author believes that the following six key points can greatly improve the quality of Rex rabbit fur.
The quality of selection and breeding of rabbits is a key factor in the quality of fur. If the variety is impure or the body size is small, there will be disorder of hair color, sparse hairiness, poor flatness, and small skins, and the quality of fur will not reach the required requirements.
Therefore, the farmers must pay attention to the introduction and breeding of the rabbits. First, when purchasing the rabbits, they must be introduced into a qualified and reputable rabbit farm. Young, large-sized, hair-dense, pure-bred, and good-sized animals should be selected. , clear pedigree, fast growth and development, good breeding performance for rabbits. Its genetic performance must also be relatively stable, especially for color rabbits, and the offspring should be colorless. The second is to adhere to scientific breeding, to establish and improve the breeding materials for the Rex rabbits, and to introduce quality male rabbits from the unrelated aviary to the rabbits on a regular basis to carry out variety improvement and to prohibit premature mating and inbreeding. All kinds of rabbits must be carefully selected, and those that do not meet the requirements for species use must be sold as rabbits for sale.
A good feeding and management management and feeding management have a great influence on the quality of fur of rabbits. On the nutritional level, if the protein supply in the diet is insufficient, especially when the supply of sulfur-containing amino acids is insufficient, the growth and development of rex rabbits will be impaired, the strength of wool fibers will decrease, the villi will become loose, and the pilose will increase; if vitamins and trace elements are lacking, Rex rabbits will have hair removal. The hair fibers will become brittle. If there is excess nutrients, the abdomen will change and the back hair will change. In terms of management, the rearing density is high, and the rex rabbits will fight each other by grabbing food and grabbing the site, biting the skin and causing scars. If the cage is wet and the sanitary conditions are poor, it will make the fur of the rex rabbit dirty and yellow skin appears.
Therefore, if you want to get a better quality fur, you must also scientifically raise and manage. The first is to provide full-priced compound feeds in accordance with the characteristics of fur growth and nutritional needs. Generally, the digestive energy per kilogram of compound feed should contain 10.5MJ~11.3MJ, 18% of crude protein in the early stage, 16% in the later stage, and 3%~5% of crude fat. Crude fiber 12%～15%, calcium 0.5%~0.7%, phosphorus 0.3%～0.5%, salt 0.5%, methionine 0.2%, also need to add appropriate amount in compound feed Trace elements and vitamins. The second is the use of fattening technology that promotes post-control, ie, from weaning to 3 months of age or 3.5 months of age, allows rabbits to feed freely, after 4 months of age, through feed quality control or feeding (80% of demand) Control, reduce the deposition of subcutaneous fat, in order to improve the quality of Rex rabbit skin. The third is to cluster the weaned rabbits in time. After weaning, the rabbits were reared in small groups. After weaning, the young males were exempted from planting and were castrated. Then group by age, weight, size, and strength, each cage is a group. 4 to 5 per cage before 2 months of age and 2 to 3 per cage after 2 months of age. The mature adult rabbits were divided into male and female groups, with 2 to 3 animals per group, which were slaughtered after short-term fattening.
The prevention and treatment of diseases and diseases will seriously endanger the health and fur quality of Rex rabbits. Rabbits suffering from rickets and trichophytonosis, for example, can cause uneven furs, ulceration of the cortex, roughness of the skin, appearance of moltings, and loss of opercula.
Therefore, the majority of farmers should pay attention to the prevention and treatment of diseases. First, the rabbit house, rabbit cage and surrounding environment should be cleaned and detoxified on a regular basis to remove excrement and dirt in a timely manner so as to keep the rabbit house, rabbit cage and surrounding environment clean. Second, we should firmly establish the concept of prevention and treatment as the supplements, do a good job in the prevention of various diseases, and timely prevent or treat the use of drugs in the prevention of brucellosis, pasteurellosis, and clostridial disease. Rabbit disease, trichophytonosis, rabbit rickets and other diseases that affect fur quality.
Grasp the right time to take the skin to grasp the best time to take the rabbit, is to ensure the quality of the fur key links. If the skin is taken too early, the villus is not full and the skin is not mature enough to become light skin and reduce its use value. If the skinning is too late, the cost of feeding increases. If the skin is removed during the hair-changing period, the plaque will produce plaque, the hairiness will be uneven, and the maturation of mature skin will result in lumpiness, which will seriously lose its use value. Therefore, we should grasp the timing of repelling rabbits. In general, rabbits are raised to about 5 months of age and have a body weight of 2.5 kg or more. After the first age-changing hair replacement and the second hair-changing, the rex rabbits should take the skin most. it is good.
Inappropriate methods of killing the slaughtered and slaughtered skin also affect the quality of the fur. If blood is lethal, it will cause bloody skin. If the skin is not properly skinned or the technique is not skilled, skin, skin and skin will form, affecting the shape of the rabbit's fur. Therefore, the method of execution should be based on the principles of lethality, non-contamination of fur, and not affecting the quality of fur. Neck displacement, rod strike, electric anesthesia, and air injection methods should be used. After the slaughter, the rabbits should be placed in a clean, cool place and stripped as soon as possible. Avoid stacking for a long time to avoid affecting the quality of the fur by heat.
If the fresh skin peeled off by the processing and storage is not treated in time, the hair follicles will be damaged and the skin will be discolored and fluffy. The drying of the board skin is not timely, and mildew, “oil burning†and “cold licking†will occur. If the skin is too strong or stretched too much, the skin will be dry and the legs and the skin will be thin as paper. When the skin is dry, it will be easily damaged. Therefore, after the peeling of the fresh skin, it is necessary to finish the processing in time, cut the skin along the midline of the abdomen, scrape the fat and residual meat on the skin board, and cut the scalp. The plate skin is spread flat on the platform, and salt (fresh skin and salt in a ratio of 100:20 to 30) is evenly spread on various parts of the plate surface. The skins are stacked on the surface of the board and the hairs are facing each other. After 24 hours in summer and 48 hours to 72 hours in winter, salted and well-skinned skins are air-dried or dried in weak sunlight. After being dried, the plates are faced to the board surface, and the hairs are faced to overlap with the hair surface, and 10 to 50 sheets are tied and stored for sale. The storage process should be well protected from moisture, mildew, insects, rodents and other work.
The quality of selection and breeding of rabbits is a key factor in the quality of fur. If the variety is impure or the body size is small, there will be disorder of hair color, sparse hairiness, poor flatness, and small skins, and the quality of fur will not reach the required requirements.
Therefore, the farmers must pay attention to the introduction and breeding of the rabbits. First, when purchasing the rabbits, they must be introduced into a qualified and reputable rabbit farm. Young, large-sized, hair-dense, pure-bred, and good-sized animals should be selected. , clear pedigree, fast growth and development, good breeding performance for rabbits. Its genetic performance must also be relatively stable, especially for color rabbits, and the offspring should be colorless. The second is to adhere to scientific breeding, to establish and improve the breeding materials for the Rex rabbits, and to introduce quality male rabbits from the unrelated aviary to the rabbits on a regular basis to carry out variety improvement and to prohibit premature mating and inbreeding. All kinds of rabbits must be carefully selected, and those that do not meet the requirements for species use must be sold as rabbits for sale.
A good feeding and management management and feeding management have a great influence on the quality of fur of rabbits. On the nutritional level, if the protein supply in the diet is insufficient, especially when the supply of sulfur-containing amino acids is insufficient, the growth and development of rex rabbits will be impaired, the strength of wool fibers will decrease, the villi will become loose, and the pilose will increase; if vitamins and trace elements are lacking, Rex rabbits will have hair removal. The hair fibers will become brittle. If there is excess nutrients, the abdomen will change and the back hair will change. In terms of management, the rearing density is high, and the rex rabbits will fight each other by grabbing food and grabbing the site, biting the skin and causing scars. If the cage is wet and the sanitary conditions are poor, it will make the fur of the rex rabbit dirty and yellow skin appears.
Therefore, if you want to get a better quality fur, you must also scientifically raise and manage. The first is to provide full-priced compound feeds in accordance with the characteristics of fur growth and nutritional needs. Generally, the digestive energy per kilogram of compound feed should contain 10.5MJ~11.3MJ, 18% of crude protein in the early stage, 16% in the later stage, and 3%~5% of crude fat. Crude fiber 12%～15%, calcium 0.5%~0.7%, phosphorus 0.3%～0.5%, salt 0.5%, methionine 0.2%, also need to add appropriate amount in compound feed Trace elements and vitamins. The second is the use of fattening technology that promotes post-control, ie, from weaning to 3 months of age or 3.5 months of age, allows rabbits to feed freely, after 4 months of age, through feed quality control or feeding (80% of demand) Control, reduce the deposition of subcutaneous fat, in order to improve the quality of Rex rabbit skin. The third is to cluster the weaned rabbits in time. After weaning, the rabbits were reared in small groups. After weaning, the young males were exempted from planting and were castrated. Then group by age, weight, size, and strength, each cage is a group. 4 to 5 per cage before 2 months of age and 2 to 3 per cage after 2 months of age. The mature adult rabbits were divided into male and female groups, with 2 to 3 animals per group, which were slaughtered after short-term fattening.
The prevention and treatment of diseases and diseases will seriously endanger the health and fur quality of Rex rabbits. Rabbits suffering from rickets and trichophytonosis, for example, can cause uneven furs, ulceration of the cortex, roughness of the skin, appearance of moltings, and loss of opercula.
Therefore, the majority of farmers should pay attention to the prevention and treatment of diseases. First, the rabbit house, rabbit cage and surrounding environment should be cleaned and detoxified on a regular basis to remove excrement and dirt in a timely manner so as to keep the rabbit house, rabbit cage and surrounding environment clean. Second, we should firmly establish the concept of prevention and treatment as the supplements, do a good job in the prevention of various diseases, and timely prevent or treat the use of drugs in the prevention of brucellosis, pasteurellosis, and clostridial disease. Rabbit disease, trichophytonosis, rabbit rickets and other diseases that affect fur quality.
Grasp the right time to take the skin to grasp the best time to take the rabbit, is to ensure the quality of the fur key links. If the skin is taken too early, the villus is not full and the skin is not mature enough to become light skin and reduce its use value. If the skinning is too late, the cost of feeding increases. If the skin is removed during the hair-changing period, the plaque will produce plaque, the hairiness will be uneven, and the maturation of mature skin will result in lumpiness, which will seriously lose its use value. Therefore, we should grasp the timing of repelling rabbits. In general, rabbits are raised to about 5 months of age and have a body weight of 2.5 kg or more. After the first age-changing hair replacement and the second hair-changing, the rex rabbits should take the skin most. it is good.
Inappropriate methods of killing the slaughtered and slaughtered skin also affect the quality of the fur. If blood is lethal, it will cause bloody skin. If the skin is not properly skinned or the technique is not skilled, skin, skin and skin will form, affecting the shape of the rabbit's fur. Therefore, the method of execution should be based on the principles of lethality, non-contamination of fur, and not affecting the quality of fur. Neck displacement, rod strike, electric anesthesia, and air injection methods should be used. After the slaughter, the rabbits should be placed in a clean, cool place and stripped as soon as possible. Avoid stacking for a long time to avoid affecting the quality of the fur by heat.
If the fresh skin peeled off by the processing and storage is not treated in time, the hair follicles will be damaged and the skin will be discolored and fluffy. The drying of the board skin is not timely, and mildew, “oil burning†and “cold licking†will occur. If the skin is too strong or stretched too much, the skin will be dry and the legs and the skin will be thin as paper. When the skin is dry, it will be easily damaged. Therefore, after the peeling of the fresh skin, it is necessary to finish the processing in time, cut the skin along the midline of the abdomen, scrape the fat and residual meat on the skin board, and cut the scalp. The plate skin is spread flat on the platform, and salt (fresh skin and salt in a ratio of 100:20 to 30) is evenly spread on various parts of the plate surface. The skins are stacked on the surface of the board and the hairs are facing each other. After 24 hours in summer and 48 hours to 72 hours in winter, salted and well-skinned skins are air-dried or dried in weak sunlight. After being dried, the plates are faced to the board surface, and the hairs are faced to overlap with the hair surface, and 10 to 50 sheets are tied and stored for sale. The storage process should be well protected from moisture, mildew, insects, rodents and other work.
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