Calving Characteristics
    1.
    发明申请
    Calving Characteristics 审中-公开
    产犊特征

    公开(公告)号:US20090181386A1

    公开(公告)日:2009-07-16

    申请号:US12223773

    申请日:2007-02-05

    IPC分类号: C12Q1/68

    摘要: The invention relates to a method for determining calving characteristics in bovine subjects, wherein calving characteristics comprise stillbirth, calving difficulty and calf size at birth, which are all economically important factors. In particular, the method of the invention involves identification of genetic markers and/or Quantitative Trait Locus (QTL) for the determination of calving characteristics in a bovine subject. The determination of calving characteristics involves resolution of the specific microsatellite status. Furthermore, the invention relates to a diagnostic kit for detection of genetic marker(s) associated with calving characteristics. The method and kit of the present invention can be applied for selection of bovine subjects for breeding purposes. Thus, the invention provides a method of genetically selecting bovine subjects with calving characteristics that will yield cows less prone to stillbirth, calving difficulties and undesired calf size at birth.

    摘要翻译: 本发明涉及一种用于确定牛受试者的产犊特征的方法,其中产犊特征包括出生时的死胎,产犊困难和小腿尺寸,这都是经济上重要的因素。 特别地,本发明的方法涉及鉴定用于确定牛受试者的产犊特征的遗传标记和/或定量性状基因座(QTL)。 产犊特征的确定包括解决特定的微卫星状态。 此外,本发明涉及用于检测与产犊特征相关的遗传标记的诊断试剂盒。 本发明的方法和试剂盒可用于选择用于育种目的的牛受试者。 因此,本发明提供了一种遗传选择具有产犊特征的牛受试者的方法,该方法将使得不太容易产生死胎,产犊困难和出生时不期望的小腿尺寸的母牛。

    Insulation of flat roofs and simultaneous construction of a gradient for
positive drainage of the roofing placed on the insulation

    公开(公告)号:US5222337A

    公开(公告)日:1993-06-29

    申请号:US668506

    申请日:1991-03-26

    IPC分类号: E04B7/22 E04D13/16

    摘要: Insulation of flat roofs and simultaneous construction of a gradient for positive drainage of the roofing placed on the insulation, said gradient being perpendicular to the outer edges of the roof and running in two directions perpendicularly to one another, and where between the differently angled falls border lines are running from the corners of the roof towards the center line of the roof, said insulation comprising rectangular elements having an oblique surface corresponding to the gradient of the roof. In order to provide a roof insulation, by means of which and by use of only a few standardized element san insulation layer with a gradient may be obtained without any cutting during the laying out, said gradient either running from the middle of the roof and towards its edge or the other way round from the edge of the roof towards the middle to a drain, the insulation is characteristic in that the rectangular elements are arranged in rows parallel to the edges of the roofs in such a way that at the border lines where the lengths running perpendicular to one another meet, one of these rows adjoins these border lines with one of the highest corners of the elements, elements being arranged in another row running parallel to the first row, and that along the border line a number of rectangular, triangular adjusting elements are arranged in a jagged pattern on top of the elements, the hypotenuse of which runs along the border line and the two other sides of which are made of side faces in the shape of an acute triangle, the side edge opposite the acute angle having a length, which corresponds to the difference in thickness between the thicker and the thinner part of the rectangular element.