1. <pre id="07ieg"></pre>
        <abbr id="07ieg"></abbr>

        <big id="07ieg"></big>

        亚洲国产精品久久久天堂麻豆,欧美freesex潮喷,国产成人啪精品视频网站,亚洲第一福利网站在线观看,激情五月天俺也去综合网,亚洲成人网gav,九九久久精品国产免费看小说,久久精品中文字幕一区二区三区

        提高長毛兔產量和質量的技術知識

        發布日期:2016-10-27 來源:http://m.jinrimeigu.cn 發布人:admin

        (一)推廣伏種,精細選種,實行雜交改良在我國飼養的長毛兔中,以德系安哥拉免產毛量更高,法系安哥拉兔居中,英系和中系安哥拉較低。近些年我國培育的唐行系、皖系長毛兔產毛量和兔毛質量均較高。在推廣品種的同時,要不斷選育這些品種,以避免后代退化。

        (a) V promotion, fine selection, implementation of crossbreeding in China bred Angora rabbit, the German Angola free wool yield the highest law in Angola center, British and Chinese in Angola is relatively low. In recent years China's cultivation of Tang line, Wanxi Angora rabbit wool and rabbit hair are high quality. At the same time, to promote the quality of varieties, we must continue to breed these varieties, in order to avoid future generations of degradation.

        (二)保證營養供應,提供全價日糧由于硫是兔毛的組成元素之一,對兔毛的產量和彈性、強度等紡織性能有重要影響。因此,在配合日糧時要注意含硫氨基酸--胱氨酸的添加。兔毛的角蛋白是由多種氨基酸組成的,所以必須供給多量的蛋白質。理想的毛兔日糧中,蛋白質應占17%左右,含硫氨基酸含量不低于0.6%。

        (two) ensure the supply of nutrients to provide complete diets because the sulfur is one of the constituent elements of hair, hair has an important effect on the yield and elasticity, strength of textile performance. Therefore, it should be paid attention to the addition of sulfur amino acid and cysteine in the diet. Keratin hair is composed of a variety of amino acids, so we must supply large amounts of protein. The ideal Maotu dietary protein should be accounted for about 17%, the content of sulfur amino acid content of not less than 0.6%.

        (三)搞好兔籠設備,精心管理長毛兔的管理,強調籠舍設備要配套。斷奶后的免要求一兔一籠,籠舍地面要勤打掃、勤。喂食要定時定量,注意飲水量。其次,要嚴防打架和受傷。

        (three) to hutch equipment, careful management of Angora rabbit management, emphasize the cage equipment to complete. After weaning the requirements of a rabbit cage, the cage ground to ground cleaning, ground disinfection. Feeding should be quantitative, pay attention to the amount of water. Secondly, to prevent and fight injured.

        (四)促進毛兔皮膚、毛囊發育,增加被毛密度兔皮初生毛囊在胎兒后期(20—26天)開始發育,次生毛囊在胎兒出生后開始發育。因此,在母兔妊娠后期和哺乳期應加強營養。

        (four) promote rabbit skin, hair follicle, hair follicle density increased by newborn rabbit in the later period of the fetus (20 - 26 days) the development of secondary follicle in fetal development after birth. Therefore, nutrition should be strengthened in the later stage of pregnancy and lactation.

        (五)產毛化母兔比公免產毛量高5%—20%。群體產毛越高,差異越大。繁殖母兔由配種前剪毛、短間隔剪毛、產前自身拉毛等,可使30%左右的絨毛失去紡織價值。去勢可使公兔產毛量提高,但不應過早去勢。為此,可施行繁殖、產毛化。

        (five) wool professional female rabbits than the male free high wool yield 5% - 20%. The higher the population is, the greater the difference is. Reproductive female rabbits by mating prenatal short interval shearing, shearing, the galling, can make about 30% of the lost value of textile fluff. Castration can increase the yield of male rabbits, but it should not be premature. To this end, the implementation of breeding, wool production specialization.

        (六)講求方法。合理采毛要根據季節和兔的生理階段等具體情況合理安排剪毛和拔毛。冬季以拔毛為主,夏季以剪毛為主,拔毛適用于被毛密度大的品種和個體,孕兔、哺乳母兔、配種期公兔及幼兔不宜拔。

        (six) stress method. Reasonable hair collection according to the season and rabbit physiological stage specific conditions such as reasonable arrangement of shearing and plucking. In winter plucking, summer to shearing, plucking for wool density and the variety of individual pregnant rabbits, lactation mother rabbit, rabbit and rabbit breeding period should not be pulled out.

        (七)適時采毛按季節氣候的變化在拔毛前采毛。幼兔出生后42天開始換毛,持續70天,故出生后50天內采毛。成年兔換毛,春季一般在3—4月換掉冬毛長夏毛;秋季一般8—9月,脫掉夏毛,換上冬毛。為此,采毛的時間應安排在換毛前。此外,建立合理的兔群年齡結構、人工催毛、保持適宜的環境溫度、根治毛兔疥癬病、杜絕脫毛癥等也是重要的措施。

        (seven) according to the seasonal climate change, the seasonal climate change. Some young rabbits began 42 days after birth, lasting 70 days, 50 days after the birth of the inner hair collection. Adult rabbits molt, usually in the spring of 3 April to replace the winter hair long hair in summer; autumn is generally from 8 to September, the summer off hair, put on the winter hair. To this end, the timing of the hair should be arranged in front of the. In addition, the establishment of reasonable rabbit population age structure, artificial wool, urged to maintain proper temperature, radical Maotu scabies and eliminate alopecia are also important measures.

        本文由長毛兔為您提供,我們的網站是:http://m.jinrimeigu.cn我們將以全心全意的熱情為您提供更的服務,歡迎您的訪問!

        In this paper, we provide you with a long haired rabbit, our website is: http://m.jinrimeigu.cn we will be dedicated to provide you with a warm and dedicated service, you are welcome to visit!

         

        主站蜘蛛池模板: 中文字幕久久久久人妻中出| 中文在线字幕亚洲精品| 久久精品国产6699国产精| 青青av| 亚洲无码| 国产免费无码9191精品| a级黑人大硬长爽猛出猛进| 97午夜理论电影影院| 深夜av在线免费观看| 在线人成视频播放午夜福利| 亚洲AV色图| 内射老阿姨1区2区3区4区| 国内精品一区二区三区东京| 人妻伦理在线一二三区| 精品午夜福利无人区乱码| 成人片黄网站色大片免费毛片| 国产高清又黄又嫩的免费视频网站| av大香蕉| 国产精品自拍实拍在线看| 拳交av| 日韩欧美视频一区二区三区| 91精品国产综合久久香蕉| 丰满的女邻居2| 久久亚洲av成人无码软件| 久久福利影院| 国自产拍偷拍精品啪啪一区二区| 亚洲AV第二区国产精品| 国产精品无码AV私拍| 9久9久女女热精品视频免费观看| 97se亚洲国产综合在线| 国产免费性感美女被插视频| 日本精品一区二区| 2020国产欧洲精品网站| 导航福利在线| 激情五月日韩中文字幕| 日韩精品国产另类专区| 精品3p| 天堂在线日韩av| 欧美亚洲一区二区三区| 二级特黄绝大片免费视频大片| 亚洲 欧美 综合 另类 中字|