英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

estrus    音标拼音: ['ɛstrəs]
n. 动情期,动情周期

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Estrous cycle - Wikipedia
    Estrus or oestrus refers to the phase when the female is sexually receptive ("in heat" in American English, or "on heat" in British English) Under regulation by gonadotropic hormones , ovarian follicles mature and estrogen secretions exert their biggest influence
  • Estrus | Heat Detection, Ovarian Activity Hormonal Changes . . .
    Estrus, the period in the sexual cycle of female mammals, except the higher primates, during which they are in heat—i e , ready to accept a male and to mate One or more periods of estrus may occur during the breeding season of a species
  • ESTRUS Definition Meaning - Merriam-Webster
    The meaning of ESTRUS is a regularly recurrent state of sexual receptivity during which the female of most mammals will accept the male and is capable of conceiving : heat; also : a single occurrence of this state How to use estrus in a sentence
  • THE ESTROUS CYCLE - University of Wyoming
    The estrous cycle can be divided into four stages: proestrus, estrus, metestrus, and diestrus During proestrus the CL regresses (progesterone declines) and a preovulatory follicle undergoes its final growth phase (estradiol increases) Ovulation usually occurs during estrus (cows ovulate during metestrus)
  • Estrous Cycle - Embryology
    The estrous cycle is generally divided into the four stages of proestrus, estrus, metestrus, and diestrus On cytological evaluation, these stages are defined by the absence, presence, or proportion of 4 basic cell types as well as by the cell density and arrangement of the cells on the slide
  • Estrus Cycle - an overview | ScienceDirect Topics
    In domestic farm animals, the estrous cycle is defined as the number of days from initiation of behavior estrus expression to onset of a subsequent estrus Endocrine changes during the estrous cycle are presented in Fig 2 There are four stages of the estrous cycle: proestrus, estrus, metestrus, and diestrus
  • Estrous Cycle vs. Menstrual Cycle - Whats the Difference . . .
    In the estrous cycle, females experience a period of sexual receptivity, known as estrus, during which they are fertile and can conceive This is in contrast to the menstrual cycle, where females experience menstruation, the shedding of the uterine lining, when conception does not occur
  • Estrus | definition of estrus by Medical dictionary
    the recurrent, restricted period of sexual receptivity in female mammals other than human females, marked by intense sexual urge See also estrous cycle Called also estruation, estrum, and heat adj , adj es´trual, es´trous
  • ESTRUS | definition in the Cambridge English Dictionary
    ESTRUS meaning: 1 the time when a female animal is fertile (= able to become pregnant) and willing to mate (= have… Learn more
  • Estrus | EBSCO Research Starters
    Estrus, derived from the Greek word "oistros," refers to a period in the reproductive cycle of female mammals when they are receptive to mating This phase is characterized by a complex interplay of physiological and behavioral changes that signal readiness for copulation





中文字典-英文字典  2005-2009