Results 51 to 60 of about 5,707 (205)

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu   +7 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

Factors associated with the reproductive performance of ewes inseminated laparoscopically in England and Wales: A longitudinal study

Veterinary Record, EarlyView.
Abstract Background Laparoscopic intrauterine artificial insemination (Lap‐AI) is used in sheep genetic improvement programmes. However, the lambing rate (LR) (i.e., the proportion of inseminated ewes that lamb) following Lap‐AI is variable. Previously, one small UK study investigated factors associated with LR, but it did not adjust for dependencies ...
Mike J. Glover, Laura E. Green, Rachel Clifton   +2 more
wiley   +1 more source

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

Considerations for Successful Synchronization of Estrus Programs [PDF]

, 1998
This document provides information regarding considerations for successful synchronization of estrus programs and provides a discussion on overcoming most failures with synchronization ...
Clemson University. Cooperative Extension Service
core  

Estrus Synchronization in Awassi and Red Karaman Fat Tailed Ewes

, 2003
To evaluate the efficacy of estrus synchronization procedures 60 Awassi and 44 Red Karaman ewes were equally divided into 2 groups each. To synchronize estrus sheep in one group from each breed (group 1 and 2) were injected intramuscularly with PGF2α (1 ...
Ockerman, Hw, Yaprak, M, Ebru Emsen, Mustafa Yaprak, Emsen, E, Omer Cevdet Bilgin, Bilgin, Ömer Cevdet, Herbert W. Ockerman   +7 more
core   +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

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

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

Fertility after synchronization of estrus in dairy heifers using GnRH, PGF2a, and Progesterone (CIDR) [PDF]

, 2001
Our objective was to determine fertility of heifers after synchronization of estrus using PGF2", preceded by progesterone, GnRH, or both. Dairy heifers (n = 246) were assigned randomly to three treatments: 1) 50 :g of GnRH given 6 d before 25 mg of ...
Stevenson, Jeffrey S., Jeffrey S. Stevenson, A.M. Richardson, Hensley, B.A., B.A. Hensley, Richardson, A.M.   +5 more
core   +1 more source