How to collect High quality Rex Rabbit skin

As the quality of Rex rabbit fur is greatly affected by the season (for example, in the hot season, the growth of fur is sparse, the skin is easy to be damaged, and it is not easy to store), so the fur is generally slaughtered in winter, that is, from December to February of the following year. At this time, the fur plate is clean, fluff is rich, glossiness is good, high-quality fur is many and easy to store.

How can we get high-quality Rex rabbit fur? In addition to the daily careful feeding, the corresponding technical measures must be implemented in the aspects of skin taking, fresh skin treatment and storage.

Fortified feed nutrition

Feed and nutrition are the most prone to problems in production. Unified nutrition standard, scientific design of feed formula and strict control of raw material quality are the "three keys" to ensure feed quality and nutrition. I would like to remind you that in rabbit farms without formula design technology and raw material control and purchasing ability, it is best to use commercial feed with high reputation. This may be more cost-effective and effective than your own ingredients.

Rex rabbits should not only gain weight, but also raise skin, which requires a higher level of nutrition. It is recommended to use digestible energy 11.3 MJ / kg, crude protein 18% Mel 20%, crude fat 2% Mel 3%, calcium 1%, phosphorus 0.5%, lysine 1%, cystine 0.9%.

In order to obtain high quality Rex rabbit skin, the quality of fur can be improved by adding soybean, cystine or a small amount of sulfur to the diet one month before slaughter. According to the introduction of German rabbit experts, adding protein feed such as soybean, alfalfa and sunflower cake to the diet three weeks before the slaughter of leather rabbits plays a good role in improving the quality of the skin.

Master the time of picking skin

The time of picking skin of Rex rabbit mainly includes the age of picking skin and the picking season.

According to the normal physiological hair changing rule of Rex rabbits in different growth periods, the skin-picking age of rabbits was determined. The young rabbits changed their hair for the first time from the 6th week after birth, and the hair changing time lasted for 70 days. At the age of about 4.5 months, the second hair change began, and the phenomenon of hair change and hair loss was the most serious. The whole body hair of the rabbit was sparse and uneven, especially on the buttocks and side of the body. This hair change was about 50 days. At the age of about 6 months, the second hair change ends, the hair enters the growth and maturity stage, and the hair root is firm and not easy to fall off. At the same time, the leather plate is mature, the flexibility, toughness and elasticity are good, and the area of the sheet increases. The quality of the skin of 6-8 months old is obviously better than that of slaughtering and taking skin at the age of 3 and 4 months. if the skin is not properly removed, it will lead to low quality, depilation, poor grade, low processing utilization, low grade and low economic value. In order to improve the grade and economic benefit of rabbit skin, we must pay attention to the month-old age of rabbit skin. 6-8 months old is more ideal, but the time of concentrated skin collection in production is 4.5 months old.

Like other animals, the coat quality of rabbits is significantly affected by the season. One is that rabbits have seasonal hair changing and hair loss, and the other is that the development of hair follicles is affected by temperature. In the summer and autumn with high temperature, the seasonal hair change of rabbits enters the peak period, and some of the hair follicles are dormant, so the rabbit hair is not only sparse but not firmly rooted, so it is easy to fall off; in winter and spring, with the decrease of temperature, most rabbits end hair change and enter the period of vigorous hair growth and maturity, and the hair follicles develop well. At this time, the plush is rich and dense, the needle hair is neat, the luster is good, and does not shed hair, which is the best season to obtain high-quality rabbit skin. The best skin picking season is from December to March of the following year.

Therefore, in order to improve the grade of rabbit skin, comprehensive consideration, reasonable arrangement and operation must be carried out according to the most suitable age and season, which is the key to obtain high-grade rabbit skin.

Basic method of skin extraction

Rex rabbit fur is precious, in order to reduce fur defilement and protect fur, it should be killed first, then peeled, and then bled.

The first is execution. At present, the neck transposition method is widely used for execution. This method is simple and easy, that is, grasp the two hind legs with one hand, hold the rabbit's medulla oblongata behind the root of the two ears with the other thumb, press the chin with the other four fingers, and then pull hard with both hands, so that the rabbit's head is twisted backward, and the cervical vertebra can be dislocated to death.

The second is skinning. The Rex rabbit should be skinned immediately after execution (the skinning technique is the same as the meat rabbit).

The third is carcass treatment. In order to prevent the body from becoming stiff for a long time after execution, which brings difficulties to bloodletting, bloodletting is performed immediately after execution and caesarean section is performed immediately after bloodletting. First cut the abdominal cavity along the midline of the abdomen with a knife, then cut open the pubic symphysis, separate the genitourinary organs and rectum, and remove all the internal organs; cut off the rabbit's head at the anterior cervical vertebra; cut off the hind foot at the tarsal joint; cut off the forefoot at the wrist joint; cut off the tail at the first tail. Finally, wash the blood and dirt on the carcass with clean water.

Scientific treatment of fresh skin

The treatment of fresh skin directly affects the quality of rabbit skin. The fresh skin slaughtered and peeled contains a lot of water, protein, bacteria and a variety of enzymes. If it is not properly treated in time, the quality of fur products will be affected. Serious ones can lead to deterioration, depilation, mildew, worms, loss of processing value and become waste.