The little rabbit was born without hair and began to grow on the fourth day. Hair grows fast. The hair development of the whole ear of the young rabbit was normal. At the age of one month, the length of the hair was up to 4.2 cm; the length of the fine hair was up to 2.8 cm, and the milk hair was all formed; at 60 days, the coarse hair was up to 7.5 cm, and the fine hair was up to 4.5 cm. At the age of 90 days, the growth rate of hair fiber was the same as that of adult rabbits, and the average growth rate of day and night hair was 0.6-0.7 mm. It takes about 75 to 90 days for the coat to grow back to its optimum length after shearing. Therefore, the hairy rabbit can be cut 4-5 times a year. The experiment shows that the wool yield per unit weight of wool rabbit is 2 - 3 times that of sheep, and the nutrition requirement is 1 / 3 of that of sheep.

　　兔毛的生长受到许多因素的制约

　　The growth of rabbit hair is restricted by many factors

　　一是品种的影响，兔毛的产量和质量随品种或品种的不同而不同。

　　One is the influence of variety. The output and quality of rabbit hair vary with variety or variety.

　　第二，受个体影响，体重与毛发的产生是成比例的，个体越大，身体越大，表皮面积越大，毛发的产生越高。

　　Secondly, affected by individuals, the weight is proportional to the production of hair. The larger the individual, the larger the body, the larger the skin area, and the higher the production of hair.

　　第三，受性别影响，母兔的毛发量高于公兔。母兔在妊娠期和哺乳期毛发生长缓慢。

　　Thirdly, influenced by gender, the hair quantity of female rabbit is higher than that of male rabbit. The hair growth of female rabbits was slow during pregnancy and lactation.

　　四是受年龄影响。幼兔毛发少，质量差。头发在2-3岁时更多。3年后品质更好，毛产量逐渐下降，品质也下降。毛发的生长规律是，从幼兔到成年兔，兔毛由细到厚;老兔子的毛比小兔子的毛短。

　　Fourth, affected by age. Young rabbits have less hair and poor quality. The hair is most at the age of 2-3. Three years later, the quality was the best, the gross output decreased gradually, and the quality also decreased. The growth rule of hair is that from young rabbit to adult rabbit, the hair of rabbit is from thin to thick; the hair of old rabbit is shorter than that of small rabbit.

　　五是受生理条件和生理因素的影响。身体虚弱或疾病会抑制兔毛的生长;兔毛的生长是由神经系统控制的。性腺和垂体的内分泌活动直接影响兔毛的产量和质量。例如，去势的雄兔兔毛生长快，密而细，产量高。

　　Fifth, it is affected by physiological conditions and factors. Weakness or disease can inhibit the growth of rabbit hair, which is controlled by the nervous system. The endocrine activities of gonad and hypophysis directly affect the output and quality of rabbit hair. For example, the hair of castrated male rabbit grows fast, dense and fine, and its output is high.

　　此外，化学因素也会影响毛发的生长量，紫外线照射可加速兔毛的生长，但毛发纤维变粗。

　　In addition, chemical factors can also affect the growth of hair. Ultraviolet irradiation can accelerate the growth of rabbit hair, but the hair fiber becomes thick.

　　以上就是蒙阴长毛兔对影响兔毛产量的影响因素的详细介绍，欢迎访问官网http://www.myxinhua.com

　　The above is a detailed introduction of the influence factors of Mengyin long hair rabbit on rabbit hair production. Welcome to the official website http://www.myxinhua.com