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毛长

毛长的相关文献在1975年到2022年内共计197篇,主要集中在畜牧、动物医学、狩猎、蚕、蜂、中国文学、轻工业、手工业 等领域,其中期刊论文196篇、专利文献55826篇;相关期刊156种,包括农民致富之友、青海畜牧兽医杂志、畜牧兽医科技信息等; 毛长的相关文献由274位作者贡献,包括李佳楠、姚树清、村上春树等。

毛长—发文量

期刊论文>

论文:196 占比:0.35%

专利文献>

论文:55826 占比:99.65%

总计:56022篇

毛长—发文趋势图

毛长

-研究学者

  • 李佳楠
  • 姚树清
  • 村上春树
  • 伊宁
  • 佚名
  • 子乌
  • 孔繁树
  • 常城
  • 张平
  • 张才骏
  • 期刊论文
  • 专利文献

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    • 李德勇
    • 摘要: 一、延边牛:延边牛为东北地区优良地方牛品种,我国五大黄牛品种之一。1.外貌特征。被毛多呈浓淡有别的黄色,毛长而密。皮厚而有弹力。胸部深宽,骨骼坚实。公牛额宽,头方正,角基粗大,多向后方伸展,成“一”字形或倒“八”字角,颈厚而隆起,肌肉发达。
    • 霖子
    • 摘要: 它俩都是我初中同学家的狗子生的娃儿。她家养的是只京巴,狗子怀孕得莫名其妙,我们也是通过毛色和毛长猜,可能是跟马尔济斯的串串,我是从小就很喜欢狗,但是我妈一直不让养。于是我就先斩后奏跟我同学要了一只小公狗,等它断奶,我脱下羽绒服,包着狗子,只穿了一件单衣,骑自行车二十多分钟。带狗子到家。那时候它是小小的一团,雪白雪白的,缩在我怀里,用它圆溜溜的大眼睛打量着我。我打定主意死皮赖脸地要求我妈留下它,结果我妈看到它直呼好可爱啊,球球同学正式成为我家的一员。
    • 霖子
    • 摘要: 它俩都是我初中同学家的狗子生的娃儿。她家养的是只京巴,狗子怀孕得莫名其妙,我们也是通过毛色和毛长猜,可能是跟马尔济斯的串串,我是从小就很喜欢狗,但是我妈一直不让养。于是我就先斩后奏跟我同学要了一只小公狗,等它断奶,我脱下羽绒服,包着狗子,只穿了一件单衣,骑自行车二十多分钟带狗子到家。
    • 姚骏1
    • 摘要: 偶然看到一张图片。这是一只浑身已被厚厚羊毛毡裹住的羊。除露出嘴巴,眼睛几乎都看不见。这只羊,据说失踪了六年。春夏时羊毛快脱时没有掉完,秋天新毛长出来,新旧毛混杂在一起。年复一年,羊身上最后形成了这样的毛毡。夏天,不论地球上哪个地方,这对于一个裹着厚毡的生命来说都是一场灾难。我在想,这几年它是怎么过来的。这几年里,没有人去剪羊毛,没有人去洗羊.
    • 李学武; 王瑞军; 王志英; 李宏伟; 王振宇; 苏蕊; 张燕军; 刘志红; 李金泉
    • 摘要: 为研究内蒙古绒山羊不同毛被类型遗传,收集内蒙古白绒山羊种羊场1990-2014年间54 044只绒山羊毛长(自然长度)的重复数据记录,按照不同羊毛长度将绒山羊分为三个类型:短毛型(≤13 cm,SSL)、中间型(13 cm<羊毛长度≤22 cm,ISL)和长毛型(>22 cm,LSL).对毛长进行基本统计分析,发现内蒙古绒山羊个体之间的羊毛长度存在很大的差异,毛长度在5~34 cm之间,而且毛长的分布规律基本符合正态分布.采用WOMBAT软件的AIREML算法进行方差组分分析和遗传参数估计.结果表明短毛型、中间型和长毛型的遗传力分别是0.11、0.16和0.22,长毛型的遗传力高于短毛型和中间型,并且短毛型和中间型属于低遗传力,而长毛型属于中等遗传力.从遗传进展上看,三种类型的遗传趋势相一致,总体上呈上升趋势,并且三种类型毛长的平均育种值每年分别增加0.005 9、0.011 3和0.014 1 cm.研究表明长毛型的遗传进展比中间型和短毛型的遗传进展快,所以选择长毛型的绒山羊可以加速毛长遗传进展,为与其相关的重要经济性状间接选择奠定理论基础.%The repetitive data of staple length (natural length) of 54 044 Inner Mongolia White Cashmere goats from 1990 to 2014were collected in a breeding farm.The staple length of Inner Mongolian Cashmere goats were divided into three types:Short-staple length (≤13 cm,SSL),intermediate-staple length (> 13 cm and ≤22 cm,ISL) and longstaple length (>22 cm,LSL).After the basic statistical analysis of different hair length,it was found that there were significant differences in staple length among Inner Mongolia Cashmere goats.The staple length was ranged from 5 to 34 cm,and the distribution of staple length was consistent with the normal distribution.The average information restricted maximum likelihood (AIREML) method in a multivariate animal model on wombat software was used to analyze variance components and estimate the genetic parameters to reveal the staple length genetic regularity.The result showed that:the heritability of SSL,ISL and LSL were 0.11,0.16 and 0.22,respectively.The heritability of LSL was highest in three types.And the heritability of SSL and ISL belong to the low heritability,while the heritability of LSL was the moderate heritability.The genetic trends of all three types' staple length were consistent in both genetic progress and genetic progress.The result showed that LSL was most stable in the genetic progress.Genetic trends tor SSL (0.005 9 cm/year),ISL (0.011 3 cm/year) and LSL(0.014 1 cm/year) was positive during the period of breeding.The genetic progress of the LSL3 was the fastest among three types.So,selecting of LSL3 could accelerate genetic progress.And this study lay the theoretical foundation for the indirect selection in other important economic traits.
    • 村上春树
    • 摘要: 学生时代我在三鹰住宿舍的时候捡了一只小公猫。与其说是捡的,倒不如说是一天晚间我走路时它擅自"喵喵"地跟在后面,一直跟进我宿舍房间。它是一只褐色虎纹猫,毛长长的,两腮毛茸茸的活像连鬓胡,十分可爱。
    • 徐乾琨; 黄冬维; 程广龙; 赵小伟; 杨永新; 赵辉玲; 邓治邦
    • 摘要: To research hair growth regularity of short-hair rabbit,adult short-hair rabbit was used as the experimental object. From the 4th to the 11th week,the back hair was collected once a week by plucking,the length of coarse,fine and awn was measured,and the growth curves of three types of hair were simulated by growth curve models. The results showed that the length of the three kinds of hairs increased significantly (P0.05)in hair length during the 6th-11th week,except the coarse hair length between the 7th week and the 11th week. The fine length during the 6th-9th week showed that the hair almost had no growth. The growth curve fitting results showed that the Logistic growth curve model was better than the Von Bertalanffy model. The growth inflection point were 3.69,3.82,4.07 weeks for coarse,fine and awn,respectively,while the length inflection points of three types hair were 17.58,13.4, 16.21 cm respectively. The results can provide a reference for the further study of rabbit hair growth ,hair follicle development and apoptosis.%以成年短毛兔为试验对象,通过拔毛构建新的兔毛生长周期,从第4~11周,每周采集一次背部毛样,用直尺测定不同时期粗毛、细毛和两型毛的长度,通过生长曲线模型对兔毛生长情况进行了模拟,并对短毛兔兔毛的生长规律进行了研究.结果表明:试验兔第4、5、6周,3种毛型的长度都依周次显著增长(P0.05),这说明短毛兔兔毛在第6周后基本停止生长.生长曲线拟合结果表明,Logistic模型最为符合短毛兔兔毛生长的实际情况,粗毛、细毛和两型毛的拐点周龄分别为3.69、3.82和4.07周,拐点毛长分别为17.58、13.40和16.21 cm,说明短毛兔兔毛生长速度在第4周左右开始变慢.研究结果可为兔毛生长规律和毛囊发育及凋亡规律的研究提供参考.
    • JANE
    • 摘要: 这年头儿,跟什么人打交道最见智商?当然是聪明人!其实,不单是人,和狗狗打交道也是很见智商的,尤其是和这位汪星界智商排名第一的聪明哥——边境牧羊犬。如果你很有兴趣见识见识边境牧羊犬的高智商,那么,你一定要做好跟它斗智斗勇的心理准备。
    • 王洪武
    • 摘要: 我们小区有几位大爷、大妈,见到楼梯通道和墙角有脏物,马上就打扫干净。他们发现脏物被停放的自行车粘着,就将其搬开,或躬着身子用扫帚掏出脏物,其精神实在可敬。然而,也有一些楼上住户,不但从未用扫帚扫过楼道,还动不动将烟头、果壳随意抛到地上。大伙对这种不道德行为很有意见。
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