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oestrus    
n. 发情,牛虻

发情,牛虻

oestrus
n 1: applies to nonhuman mammals: a state or period of
heightened sexual arousal and activity [synonym: {estrus},
{oestrus}, {heat}, {rut}] [ant: {anestrum}, {anestrus},
{anoestrum}, {anoestrus}]
2: type genus of the Oestridae: sheep botflies [synonym: {Oestrus},
{genus Oestrus}]


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  • Estrous cycle - Wikipedia
    Estrus (US-EN) or oestrus[2] (UK-EN) 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
  • What Is the Oestrous Cycle and Its Stages? - Biology Insights
    Oestrus, often referred to as “heat” or “standing heat,” is the period of peak sexual receptivity and fertility Estrogen levels reach their highest point, which triggers ovulation in most species Females in oestrus are receptive to mating and may actively seek out males
  • Estrous Cycle - Embryology
    Derived originally from the Greek oloxpos, signifying the gadfly, and taken over into Latin as oestrus, the word came secondarily to mean frenzy or strong desire
  • Estrous cycle | physiology | Britannica
    The estrous cycle is a recurring period in the sexual cycle of female mammals (excluding higher primates) when they are receptive to mating This phase, often called "heat," occurs during the breeding season Prior to ovulation, the uterine lining thickens to prepare for a potential fertilized egg 1 2
  • lecture 9: estrous cycles
    Estrous Cycles in the Dog and Cat (Figure 2)
  • What happens in each stage of estrous cycle? - The Institute for . . .
    It is a complex process regulated by hormones, primarily estrogen and progesterone, and prepares the female reproductive tract for potential fertilization and pregnancy Understanding what happens in each stage of estrous cycle is vital for animal breeding, reproductive health management, and studying mammalian reproductive biology
  • What Is an Estrous Cycle and How Does It Work?
    Estrus is the “heat” phase, when the female is fertile and willing to mate Estrogen peaks and then drops sharply, triggering a surge of hormones from the pituitary gland that causes ovulation This is the only window during which mating and conception can occur
  • Heat Detection, Ovarian Activity Hormonal Changes - Britannica
    One or more periods of estrus may occur during the breeding season of a species Prior to ovulation the endometrium (uterine lining) thickens, in preparation for holding the fertilized ova As the proliferation of uterine tissue reaches its peak, receptivity is highest—this is the estrous period
  • OESTRUS Definition Meaning | Merriam-Webster Medical
    The meaning of OESTRUS is the type genus of the family Oestridae that includes the sheep botfly
  • Oestrus ovis - Wikipedia
    Oestrus ovis, the sheep bot fly, is a widespread species of fly of the genus Oestrus It is known for its parasitic predation and damage to sheep, deer, goats and sometimes cattle





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