<strike id="abvgr"><var id="abvgr"></var></strike>
  1. 国产成人综合久久精品推最新,亚洲人成电影网站色,无遮挡国产高潮视频免费观看,亚洲国产精品18久久久久久,人妻中文字幕av有码在线,国产情侣一区在线,国产日韩一区二区精品,精品国产午夜福利伦理片

    長毛兔養(yǎng)殖場對溫度的要求

    發(fā)布日期:2017-03-07 來源:http://m.fshxt.net 發(fā)布人:admin

    毛兔汗腺極不發(fā)達(dá),體表又有濃密的被毛,所以對環(huán)境溫度非常敏感。據(jù)試驗(yàn),子兔的更適溫度為30℃~34℃,幼兔為20℃~24℃,成年兔為15℃~19℃。建舍時要考慮環(huán)境溫度。不過兔為維持體溫,需消耗較多營養(yǎng),如不能滿足所需營養(yǎng),則對產(chǎn)毛和增重都有明顯影響。
    Maotu sweat gland is not highly developed, surface and dense coat, it is very sensitive to environmental temperature. According to the experiment, the optimum temperature of the rabbit is 30 ~34, and the young rabbit is from about 20 DEG C to about 24 DEG C, and the adult rabbit is in the range of. Environmental temperature should be considered when building. However, in order to maintain the body temperature, rabbits need to consume more nutrients. If they can not meet the needs of nutrition, they have significant effects on the yield and weight gain.
    據(jù)試驗(yàn),長毛兔采毛前后對環(huán)境溫度的要求差別較大。采毛前因被毛長密,體熱散失少;采毛后因體表毛短,散熱量可增加30%以上。所以,寒冷季節(jié)采毛后必須做好保溫工作,以防感冒,但在采毛4周后,可保持環(huán)境溫度在5℃~14℃之間,以利促進(jìn)兔毛生長,提高兔毛產(chǎn)量。

    According to the experiment, the requirements of the environment temperature of the Angora rabbit hair before and after the harvest are different. The hair coat is long ago by dense body heat loss due to surface mining; hair short hair, cooling capacity can be increased by more than 30%. So, the cold season production after Mao must do insulation work, to prevent colds, but the hair after 4 weeks, can maintain the ambient temperature at 5 DEG to 14 DEG C, in order to promote hair growth, improve the yield of rabbit hair.
    光照 光照對長毛兔的生理機(jī)能有重要調(diào)節(jié)作用。適宜的光照有助于增強(qiáng)長毛兔的新陳代謝,增進(jìn)食欲,促進(jìn)鈣、磷的代謝作用;光照不足則可導(dǎo)致長毛兔的性欲和受胎率下降。此外,光照還具有、保持兔舍干燥和預(yù)防疾病等作用。生產(chǎn)實(shí)踐表明,公母兔對光照要求是不同的。一般而言,繁殖母兔要求長時間光照,以每天光照14小時~16小時為好,表現(xiàn)為受胎率高,產(chǎn)子數(shù)多,可獲得更佳的繁殖效果。
    Light illumination has an important role in regulating the physiological function of Angora rabbits. The appropriate light helps to enhance the Angora rabbit The new supersedes the old. stomachic, promote the metabolism, calcium and phosphorus; insufficient light can lead to Angora rabbit and the pregnancy rate decreased libido. In addition, it also has the function of sterilization, keeping the rabbit house dry and preventing disease. The production practice showed that the male and female rabbits had different illumination requirements. In general, reproductive female rabbits require long time light, with light per day from 14 hours to 16 hours for the good performance for the high pregnancy rate, birth number, can obtain the best effect of reproduction.
    種公兔在長時間光照條件下,則精液品質(zhì)下降,而以每天光照10小時~12小時效果更好。目前,小型兔場一般采用自然光照,兔舍門窗的采光面積應(yīng)占地面的15%左右,但要避免太陽光的直接照射;大中型兔場,尤其是集約化兔場多采用人工光照或人工補(bǔ)充光照,光源以白熾燈光較好,每地面3瓦~4瓦,燈高一般離地面2米~2.4米。
    Under the condition of long time illumination, the quality of semen was decreased, and the effect of 10 hours to about 12 hours per day was the best. At present, small rabbit uses natural light, about rabbit house doors and windows lighting area should be accounted for 15% of the ground, but to avoid direct exposure to sunlight; large and medium-sized farm, especially the intensive use of rabbit artificial light or artificial lighting, light source with incandescent light is good, 3 watts per square meter of ground ~4 W, light high from the ground 2 meters ~2.4 meters.
    本文由長毛兔提供幫助,更多的相關(guān)內(nèi)容請點(diǎn)擊:http://m.fshxt.net我們將詳情為您解答.歡迎您的光臨!
    This article is provided by the Angora rabbit, more relevant content please click: http://m.fshxt.net we will give you the details!

    主站蜘蛛池模板: 国产精品国偷自产在线| 欧美牲交a免费| 婷婷色一区二区三区| 亚洲av片毛片成人观看| 久久精品国产9久久综合| 日本aaaaa片特黄aaaa| 亚洲精品片911| 2020久久国产综合精品swag | 亚洲国产成人久久精品APP| 欧美日韩国产一区二区在线观看| 中文字幕影院一区二区毛片| 欧洲美女熟乱av| 亚洲精品成人久久久| 久久精品人妻无码一区二区三| av色欲无码人妻中文字幕| 久久国产精品亚洲va麻豆| 日本成人午夜一区二区三区| 忘忧草www韩国日本| 国产麻豆精品手机在线观看| 男人猛躁进女人免费播放| 国产一区二区三区精品综合| 国产精品三级国产专不| 欧洲精品亚洲精品日韩专区| 强行糟蹋人妻hd中文| 日韩精品福利一二三专区| 日韩一区二区三区高清视频| 一区二区三区四区自拍视频| 久久91精品牛牛| 国产成人无码免费看视频软件| 岳乱妇乱第24集| 69天堂人成无码免费视频| 国产视频资源| 天天视频在线91频| 亚洲av国产suv| 强乱中文字幕在线播放不卡| 久久久久亚洲AV无码专区蜜芽| 欧美人与动牲交免费观看网| 无码手机线免费播放三区视频| 97国产精品视频自在拍| 少妇午夜啪爽嗷嗷叫视频| 欧美国产亚洲日韩在线二区|