Results 231 to 240 of about 66,616 (284)
Some of the next articles are maybe not open access.
Theriogenology, 2016
The objectives of the present study were to assess the effect of permanent contact of teasers without copulation on the interval from controlled internal drug release (CIDR) removal to estrus onset, estrus duration, ovulation time, number of ovulations, and interval from CIDR removal to ovulation time on estrus-synchronized Boer goats.
Juan E, Romano +3 more
openaire +2 more sources
The objectives of the present study were to assess the effect of permanent contact of teasers without copulation on the interval from controlled internal drug release (CIDR) removal to estrus onset, estrus duration, ovulation time, number of ovulations, and interval from CIDR removal to ovulation time on estrus-synchronized Boer goats.
Juan E, Romano +3 more
openaire +2 more sources
2008
Abstract As we noted in our introductory chapter, over four decades ago researchers offered a de0nitive conclusion about women’s sexuality: Over the course of the last several mil- lion years, women had lost estrous sexuality. Modern women possess no distinct fertile sexuality within their cycles. The theoretical perspective we presented
Randy Thornhill, Steven W Gangestad
openaire +1 more source
Abstract As we noted in our introductory chapter, over four decades ago researchers offered a de0nitive conclusion about women’s sexuality: Over the course of the last several mil- lion years, women had lost estrous sexuality. Modern women possess no distinct fertile sexuality within their cycles. The theoretical perspective we presented
Randy Thornhill, Steven W Gangestad
openaire +1 more source
Journal of the American Medical Association, 1933
There are three distinct substances in the human placenta that are capable of producing estrus precociously when administered to immature rats or mice; the first is ether soluble, the second ether insoluble but alcohol soluble, the third alcohol insoluble.
J. B. COLLIP +3 more
openaire +1 more source
There are three distinct substances in the human placenta that are capable of producing estrus precociously when administered to immature rats or mice; the first is ether soluble, the second ether insoluble but alcohol soluble, the third alcohol insoluble.
J. B. COLLIP +3 more
openaire +1 more source
Veterinary Clinics of North America: Small Animal Practice, 2018
Since 1952, scientists have studied estrus suppression in dogs. Estrus suppression in dogs must be safe and reliable. Medications used for estrus suppression in bitches include gonadotropin-releasing hormone (GnRH) agonists, GnRH antagonists, progestogens, and androgens.
openaire +2 more sources
Since 1952, scientists have studied estrus suppression in dogs. Estrus suppression in dogs must be safe and reliable. Medications used for estrus suppression in bitches include gonadotropin-releasing hormone (GnRH) agonists, GnRH antagonists, progestogens, and androgens.
openaire +2 more sources
Applied Animal Behaviour Science, 2001
During fall season, 18 multiparous Corriedale ewes were divided into two equal groups for the continuous (CON) and intermittent (INT) presence of a ram. Estrus was synchronized with fluorgestone acetate intravaginal sponges that were left 14 days, plus an injection of 200&mgr;g of a prostaglandin F-2alpha analog at sponge removal.
J E., Romano +2 more
openaire +2 more sources
During fall season, 18 multiparous Corriedale ewes were divided into two equal groups for the continuous (CON) and intermittent (INT) presence of a ram. Estrus was synchronized with fluorgestone acetate intravaginal sponges that were left 14 days, plus an injection of 200&mgr;g of a prostaglandin F-2alpha analog at sponge removal.
J E., Romano +2 more
openaire +2 more sources
Seasonal effects on behavioral estrus signs and estrus detection efficiency in Holstein heifers
Indian Journal of Animal Research, 2016In the study, 234 Holstein heifers were observed visually during a one-year period and 1622 estrus records were used to determine seasonal effects on behavioral estrus signs and estrus detection efficiency. Estrus records were classified as standing, mounting, vaginal mucus discharging, and the other estrus signs.
openaire +1 more source
Estrus without ovulation in puberal ewes
Theriogenology, 1977Abstract In three groups of puberal sheep, one of young Merino ewes and one of Merino ewe lambs at Armidale, Australia, and one of Perendale ewe lambs at Hamilton, New Zealand, 20, 33 and 6.6% respectively of the animals failed to ovulate at their first estrus.
T N, Edey +4 more
openaire +2 more sources
CowXNet: An automated cow estrus detection system
Expert Systems With Applications, 2023Thanawat Lodkaew, Kitsuchart Pasupa
exaly