Words similar to estrus
Example sentences for: estrus
How can you use “estrus” in a sentence? Here are some example sentences to help you improve your vocabulary:
150 days - the recognized age for first use in routine breeding and litter production, i.e. the age at which most females will respond to male pheromone with expression of estrus
Females lack an estrous cycle and anestrous adults are dependent upon direct contact with a non-volatile male pheromone for induction of estrus [ 8 ] . Hormonal control of scentmarking and sexual behavior of this species (hereinafter, opossum) has been described in some detail [ 9 10 ] . Estrus is induced when females nuzzle scentmarks from the androgen-dependent suprasternal (chest) gland [ 10 11 ] . Nuzzling delivers nonvolatile chemical signals to the vomeronasal organ (VNO) [ 12 ] and surgical removal of the VNO prevents induction of estrus by scentmarks alone [ 13 ] , although cautery ablation of the VNO fails to prevent ovarian activation and ovulation in females that are caged with adult males [ 14 ] . While anestrous adults are reliant on male pheromone for reproductive activation, spontaneous postlactational estrus occurs in the absence of direct contact with male pheromone [ 15 ] .
For example, a one-hour exposure to an adult male stimulated, within 48 hours, increases in uterine mass that lasted for 10 days or more [ 5 ] . Uterine mass also remained elevated 3-4 days after estrus in the two metestrous females in this study, even though their plasma estradiol concentrations were low at the time of necropsy.
Twenty-five crossbred, cyclic gilts were checked for estrus twice daily in the presence of an intact boar and naturally mated at the onset of the second estrus and again 24 hrs later.
109 days - the youngest age recorded for pheromonal induction of estrus
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