Oestrus

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Oestrus

 [es´trus]
a genus of botflies. O. o´vis deposits its larvae in the nostrils of sheep and goats and can cause ocular myiasis in humans.

Oestrus

(es'trŭs),
A genus of tissue-invading flies that cause myiasis in sheep; the head botflies in the family Oestridae. Oestrus ovis (a nose fly) is a grayish brown, robust, hairy, beelike botfly, imported from Europe, and now a serious pest in parts of the U.S.; larvae are deposited by the adult fly in the nostrils of sheep, and inch-long larvae develop in the paranasal sinuses, causing considerable mucous discharge and distress in old or weak sheep.
[G. oistros, gadfly]

Oestrus

/Oes·trus/ (es´trus) a genus of botflies. O. o´vis deposits its larvae in nasal passages of sheep and goats, and may cause ocular myiasis in humans.

oestrus

(ĕs′trəs)
n.
Variant of estrus.

es·trus

(es'trŭs)
That portion or phase of the sexual cycle of female animals characterized by willingness to permit coitus; readily detectable behavioral and other signs are exhibited by animals during this period.
Synonym(s): estruation, heat (2) , oestrus.
[G. oistros, mad desire]

Oestrus

A genus of flies whose larvae can parasitize humans and animals. The larvae can attach themselves with hooks to the CONJUNCTIVA and may cause serious damage to the eye.

Oestrus

a genus of bot flies in the family Oestridae.

Oestrus ovis
a widespread species that deposits its larvae on the nostrils of sheep and goats. Invasion of the nasal cavity causes irritation manifested by sneezing, nose rubbing, noisy breathing and nasal discharge. It may cause ocular myiasis in humans. Called also sheep nasal bot fly.

oestrus

see estrus.
References in periodicals archive ?
More recently, a study investigating the anti-fertility activity of an aqueous extract and aqueous suspension of DC seed powder administered orally to female mice and rats revealed a significant disruption to the oestrous cycle in both groups of animals, resulting in a continuous dioestrous phase.
Males who hunt risk ceding their access to oestrous females to other chimpanzees.
Stage of oestrous cycle was determined by daily examination of fresh vaginal smears as previously described (van Zutphen ct al.
In buffaloes, ovarian follicular dynamics during the oestrous cycle is similar to that in cattle.
Pseudopregnancy happens because at the end of one of the stages in the oestrous cycle of the bitch, the pituitary gland in the brain produces a hormone called prolactin.
Induction of oestrus in non-lactating dairy goats with different oestrous synchrony protocols.
Females were brought into oestrous with a single subcutaneous dose of 12[mu]g/kg body weight of benzoate oestradiol 56 h prior to pairing, plus progesterone at the dose of 0.
05) compared to Thoroughbred mares in the second mated oestrous cycle and foal heat mated oestrus Table 2.
The first ovarian cycle after parturition is shorter than the normal oestrous cycle in cows; the first postpartum ovulation occurs 17 to 34 d after calving in most dairy cows (Kindahl et al.
Identification and quantitative determination of steroids in bovine corpus luteum during oestrous cycle and pregnancy.