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.
　　兔毛的生長(zhǎng)受到許多因素的制約
　　The growth of rabbit hair is restricted by many factors
　　一是受品種的影響，兔毛的產(chǎn)量和質(zhì)量隨品種或品種的不同而不同。
　　One is affected by varieties. The output and quality of rabbit hair vary with varieties or varieties.
　　其次，受個(gè)體影響，體重與毛發(fā)的產(chǎn)生是成正比的，個(gè)體越大，身體越大，表皮面積越大，毛發(fā)的產(chǎn)生就越高。
　　Secondly, affected by the individual, the weight is directly proportional to the production of hair. The larger the individual is, the larger the body is and the larger the skin area is, the higher the production of hair is.
　　三是受性別影響，一般雌性兔子產(chǎn)毛量高于雄性兔子產(chǎn)毛量。母兔在妊娠期和哺乳期毛發(fā)生長(zhǎng)緩慢。
　　Third, affected by gender, the hair production of female rabbits is generally higher than that of male rabbits. The hair growth of female rabbits was slow during pregnancy and lactation.
　　四、受年齡影響。幼兔毛發(fā)少，質(zhì)量差。頭發(fā)在2-3歲時(shí)大量生長(zhǎng)。3年后，毛產(chǎn)量逐漸下降，質(zhì)量也下降。毛發(fā)的生長(zhǎng)規(guī)律是，從幼兔到成年兔，兔毛由細(xì)到厚;老兔子的毛比小兔子的毛短。
　　4、 Affected by age. Young rabbits have less hair and poor quality. Hair grows abundantly at the age of 2-3. Three years later, the gross output and quality of the products 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.
　　5. 受生理?xiàng)l件和生理因素的影響。身體虛弱或疾病會(huì)抑制兔毛的生長(zhǎng);兔毛的生長(zhǎng)是由神經(jīng)系統(tǒng)控制的。性腺和垂體的內(nèi)分泌活動(dòng)直接影響兔毛的產(chǎn)量和質(zhì)量。例如，去勢(shì)的雄兔兔毛生長(zhǎng)快，密而細(xì)，產(chǎn)量高。
　　5. 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.
　　以上就是 蒙陰長(zhǎng)毛兔對(duì)了解 長(zhǎng)毛兔生長(zhǎng)特點(diǎn)的重要性的詳細(xì)介紹，想要了解更多請(qǐng)點(diǎn)擊官網(wǎng)http://m.51haodu.com
　　The above is a detailed introduction of the importance of Mengyin long hair rabbit to understand the growth characteristics of long hair rabbit. To learn more, please click http://m.51haodu.com