Results 51 to 60 of about 11,326 (218)

Monitoring the effects of ovariectomy on seasonal movement behavior in suburban female white‐tailed deer using internet of things‐enabled devices

Wildlife Biology, EarlyView.
Abundant deer populations often cause conflicts in suburban communities, yet traditional population reduction methods, such as controlled hunting, can be challenging to implement. Fertility control, specifically through ovariectomy, can limit reproduction and reduce populations in certain settings, but its effect on movement behavior remains poorly ...
Vickie DeNicola, Stefano Mezzini, Francesca Cagnacci   +2 more
wiley   +1 more source

Synchronization of breeding and its impact on genetic parameters and evaluation of female fertility traits

Journal of Dairy Science, 2023
: Achieving an acceptable level of fertility in herds is difficult for many dairy producers because identifying cows in estrus has become challenging owing to poor estrus expression, increased herd size, and lack of time and skilled labor for estrus ...
Mekonnen Haile-Mariam, Irene van den Berg, Phuong N. Ho, Jennie E. Pryce   +3 more
doaj   +1 more source

Inseminations at Estrus Induced by Presynchronization Before Application of Synchronized Estrus and Ovulation [PDF]

Journal of Dairy Science, 2005
A controlled field study examined conception rates after 2 timed artificial insemination (TAI) breeding protocols conducted on 2 commercial dairy farms. Estrous cycles in postpartum lactating cows were presynchronized with 2 injections of PGF(2alpha) given 14 d apart (Pre-synch) and then, after 12 d, the standard Ovsynch protocol (injection of GnRH 7 d
J S, Stevenson, A P, Phatak
openaire   +2 more sources

Does synchronising follicular wave emergence improve outcomes in non‐superstimulated donor cattle undergoing ovum pick‐up (OPU) for in vitro embryo production?

Australian Veterinary Journal, EarlyView.
In vitro embryo production (IVEP) is now a widely commercialised assisted reproductive technology used in cattle reproduction. The use of follicle‐stimulating hormone (FSH) to superstimulate donor cattle prior to ovum pick‐up (OPU) is generally regarded as an effective strategy to improve oocyte quality, developmental competence and increase embryo ...
J Bird, RP Nevard
wiley   +1 more source

RESEARCHES REGARDING ESTRUS INDUCTION AND SYNCHRONIZATION IN SOWS AFTER WEANING

Cluj Veterinary Journal, 2009
The purpose of this paper was to improve the reproductive performances of sows after weaning in a private swine farm. The main objective was to implement modern reproductive biotechnologies (estrus synchronization, artificial insemination and ...
Liviu BOGDAN, Ioan GROZA, Mihai CENARIU, Simona CIUPE, Emoke PALL, Anamaria PETREAN, Sorana MATEI, Sidonia BOGDAN   +7 more
doaj   +1 more source

Periovulatory Hormonal Profiles after Estrus Induction and Conception Rate by Fixed-Time AI in Payoya Goats during the Anestrous Season

Animals, 2022
Sexual activity in domestic goats is positively influenced by reducing the photoperiod. Various protocols have therefore been developed in goats for the induction and synchronization of estrus during those months in which their sexual activity is reduced.
Francisco A. Arrebola, Rafael Torres-Martell, Olga González-Casquet, Cesar A. Meza-Herrera, Carlos C. Pérez-Marín   +4 more
doaj   +1 more source

Pharmacokinetics of Topical Administration of Altrenogest in Mares and Implications for Human Health

Journal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT Altrenogest is a synthetic progestogen widely used in equine reproductive management. Adverse effects to altrenogest have been reported in people with cutaneous exposure reported as the highest exposure pathway. Despite these reports, there has been no quantitative research to determine the capacity for altrenogest to be absorbed through skin.
Jaymie Loy, Kireesan Sornalingam, Adam Cawley, Colin Scrivener, John Keledjian, Glenys K. Noble   +5 more
wiley   +1 more source

A novel estrus-synchronization program for anestrous and cycling, suckled, beef cows [PDF]

, 1997
We used four herds at three Kansas ranches to evaluate the potential of two new estrus synchronization strategies to increase estrus expression and fertility of 911 crossbred suckled beef cows.
Corah, L.R., Forbes, W.L., Grieger, David M., Lamb, G.C., Stevenson, Jeffrey S., Thompson, K. E.   +5 more
core   +2 more sources

Real‐Time and High‐Resolution NIR‐II‐L Imaging of Netrin‐1‐Mediated Neurovascular Coupling Driven by Dose‐Dependent Electroacupuncture

Advanced Science, Volume 13, Issue 19, 2 April 2026.
Disrupted neurovascular coupling contributes to ovarian dysfunction in polycystic ovary syndrome. Using near‑infrared II long‑wavelength imaging, this study visualizes how electroacupuncture dynamically regulates ovarian blood vessels in vivo. Immediate and cumulative stimulation elicit distinct vascular responses via a Netrin‐1 dependent mechanism ...
Yicong Wang, Zi‐Han Chen, Jiajia Li, Wei Hu, Ying Cao, Yu Wang, Xiaoyu Tong, Wenhan Lu, Yuze Yang, Yuehao Wang, Yan Xiao, Wenhao Gao, Yuning Chen, Yuyan Hou, Fan Zhang, Yi Feng   +15 more
wiley   +1 more source

SYNCHRONIZATION OF ESTRUS IN EWES

The Iraqi Journal of Veterinary Medicine, 1987
A group of 15 Awasi ewes were inserted with intravaginal sponges of Veramix plus which were removed thirteen days later. Immediately after removal of the sponges, they were injected with 500 IU of FSH intramuscularly. All ewes were came to estrus within 2-3 days after injection.
openaire   +2 more sources