国产麻豆福利av在线播放,亚洲自拍色综合,精品国产伦一区二区三区,一级a爱做片在线观看免费潘金莲,啦啦免费在线观看,老司机免费午夜福利视频,边做饭边被躁bd苍井空图片 ,国产aⅴ爽av久久久久久麻豆

        長毛兔養殖場對溫度的要求

        發布日期:2017-03-07 來源:http://www.chle.cn 發布人:admin

        毛兔汗腺極不發達,體表又有濃密的被毛,所以對環境溫度非常敏感。據試驗,子兔的更適溫度為30℃~34℃,幼兔為20℃~24℃,成年兔為15℃~19℃。建舍時要考慮環境溫度。不過兔為維持體溫,需消耗較多營養,如不能滿足所需營養,則對產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.
        據試驗,長毛兔采毛前后對環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,可保持環境溫度在5℃~14℃之間,以利促進兔毛生長,提高兔毛產量。

        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能有重要調節作用。適宜的光照有助于增強長毛兔的新陳代謝,增進食欲,促進鈣、磷的代謝作用;光照不足則可導致長毛兔的性欲和受胎率下降。此外,光照還具有、保持兔舍干燥和預防疾病等作用。生產實踐表明,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,表現為受胎率高,產子數多,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,更多的相關內容請點擊:http://www.chle.cn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://www.chle.cn we will give you the details!

        主站蜘蛛池模板: 久久99精品久久久久久青青 | 无码毛片一区二区三区本码视频| 欧美日韩亚洲中文字幕二区| 中文字幕乱码亚洲影视| 久久精品日日躁夜夜躁| 久久久久人妻一区精品果冻| 国产高清中文手机在线观看| 欧洲无码一区二区三区在线观看| 人妻日韩精品中文字幕| √天堂中文www官网在线| 蜜芽久久人人超碰爱香蕉| 久久九九精品99国产精品| 免费国产a国产片高清网站| 久久综合色_综合色88| 色偷偷亚洲av男人的天堂| 久久乐国产精品亚洲综合| 久久国内精品一区二区三区| 色国产视频| 激情内射亚州一区二区三区爱妻| 天天爱天天做久久狼狼| 午夜福利精品一区二区三区 | 久热这里只国产精品视频| 国产人妻精品一区二区三区| 免费观看又色又爽又湿的视频| 视频一区二区三区四区久久 | 被黑人伦流澡到高潮HNP动漫 | 亚洲精品久久久久久一区| 午夜精品国产自在| 色窝视频在线在线视频| 在线观看免费视频网站a站| 加勒比色老久久爱综合网| 精品国产福利久久久| 国产亚洲精品岁国产微拍精品| 国产女人叫床高潮视频在线观看| 国产伦精品一区二区三区| 中文字幕在线日亚洲9| 亚洲中文字幕精品久久久久久直播| 国产一区二区不卡在线| 亚洲乱码一二三四区| 影音先锋日日狠狠久久| 欧美日韩精品一区二区三区高清视频|