diestrus

Thân thiện

The female mouse rests quietly in her nest during diestrus.

Definition

Noun 1. A period of sexual inactivity: In female mammals that have multiple estrous cycles within a breeding season, diestrus is the phase of sexual quiescence or inactivity that occurs between periods of sexual receptivity (estrus). 2. A physiological interval: It refers to the specific stage in the estrous cycle characterized by the regression of the corpus luteum if pregnancy does not occur, leading to a temporary cessation of reproductive activity.

Usage

• Diestrus is a technical term used primarily in biology, veterinary science, and animal physiology.
• It describes a normal, recurring phase in the reproductive cycle, not a pathological condition.
• The term is applied to non-primate mammals (e.g., dogs, cats, rats, mice).

Examples

• The laboratory mice were in diestrus, so the mating study was postponed.
• Progesterone levels are typically elevated during the diestrus phase.
• The veterinarian explained that the dog's lack of interest was because she was entering diestrus.

Advanced Usage

• Metestrus vs. Diestrus: In some classification systems, metestrus (immediately following ovulation) and diestrus are combined or distinguished. Diestrus is generally considered the longer, quiescent period following metestrus.
• Anestrus: This is a separate, longer period of sexual inactivity, often seasonal, outside of the breeding season. Diestrus occurs the breeding season between cycles.

Variants and Related Words

• Diestrum: An alternative, less common spelling.
• Diestrous (adj): Relating to or characteristic of diestrus.
  • Example: The diestrous phase is marked by specific hormonal changes.
• Estrous Cycle: The entire recurring reproductive cycle, of which diestrus is one phase.
• Estrus: The phase of sexual receptivity and fertility that precedes diestrus.
• Proestrus: The phase of follicular development leading up to estrus.

Synonyms

• Dicestrus
• Luteal phase (Note: In many species, diestrus corresponds to the luteal phase of the ovarian cycle, but the terms originate from different classification frameworks—estrous vs. menstrual cycles.)

Antonyms

• Estrus (heat)
• Sexual receptivity

Học thuật

Noun

1. (of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activity

Từ đồng nghĩa

• diestrum