Search Results - "Hunter, R H F"

Sperm release from oviduct epithelial binding is controlled hormonally by peri-ovulatory graafian follicles by Hunter, R.H.F.

“…To avoid inappropriate conclusions being drawn from the extensive use of in vitro preparations of sperm–oviduct epithelial binding, it is recalled that events…”
Get full text

Temperature gradients in vivo influence maturing male and female gametes in mammals: evidence from the cow by Hunter, R H F, López-Gatius, F, López-Albors, O

“…Since 1980 several reports have indicated that temperatures vary between preovulatory follicles and other ovarian tissues in rabbit, cow, pig and human…”
Get more information

Components of oviduct physiology in eutherian mammals by Hunter, R.H.F.

“…Recalling the evolutionary sequence of development first of gonad and subsequently of oviducts, ovarian endocrine regulation of all known components of oviduct…”
Get full text

Peritoneal fluid as an unrecognised vector between female reproductive tissues by Hunter, R H F, Cicinelli, E, Einer-Jensen, N

“…This essay discusses the potential contribution of peritoneal fluid to the regulation of reproductive processes in female mammals. After noting the relatively…”
Get more information

Local cooling of the ovary and its implications for heat stress effects on reproduction by López-Gatius, F., Hunter, R.H.F.

“…The effects of season on the fertility of the dairy cow added to the metabolic stress of milk production are well known. We here present lactating dairy cows…”
Get full text

From sperm to embryos; lessons learnt from Tim Rowson's career by Hunter, R.H.F., López-Gatius, F.

“…L.E.A.Rowson (1914–1989) raised horizons in farm animal research and the impact of his reproductive contributions remains of major importance worldwide. First,…”
Get full text

When is a cow in estrus? Clinical and practical aspects by Roelofs, J., López-Gatius, F., Hunter, R.H.F., van Eerdenburg, F.J.C.M., Hanzen, Ch

“…Good detection of estrus is critically important in dairy husbandry. Incorrect detection of estrus is related to loss of profit due to extended calving…”
Get full text

Temperature gradients in female reproductive tissues by Hunter, R.H.F

“…Abstract Deep body temperature in mammals is generally but incorrectly regarded as uniform. Alterations of temperature in oviducts and preovulatory Graafian…”
Get full text

Scanning Electron Microscopic Study of the Functional Anatomy of the Porcine Oviductal Mucosa by Yaniz, J. L., Lopez-Gatius, F., Hunter, R. H. F.

“…Summary A three‐dimensional model has not been clearly established for the porcine oviductal mucosa. The oviducts of 12 cyclic sows were examined by Scanning…”
Get full text

The presence of two ovulatory follicles at timed artificial insemination influences the ovulatory response to GnRH in high-producing dairy cows by López-Gatius, F., Garcia-Ispierto, I., Serrano-Pérez, B., Hunter, R.H.F.

“…This study sought to examine the impact of the presence of two co-dominant (ovulatory) follicles at the time of artificial insemination (AI) on the ovulatory…”
Get full text

Cross-talk between free and bound spermatozoa to modulate initial sperm:egg ratios at the site of fertilization in the mammalian oviduct by Hunter, R.H.F., Gadea, J.

“…This essay proposes that highly localized communication between free and bound spermatozoa in the caudal portion of the oviduct acts to regulate the numbers…”
Get full text

Charles Georges Thibault (1919-2003): inspirational leader in French reproductive biology by Hunter, R H F

“…The contribution of Charles Thibault in creating and developing a major international centre of animal research at Jouy-en-Josas (near Versailles) in post…”
Get more information

From pre‐ovulatory follicle palpation to the challenge of twin pregnancies: Clinical reflections following one million gynaecological examinations in dairy cows by López‐Gatius, F., Hunter, R.H.F.

“…Contents Based on experimental studies and extensive field‐scale experience, this review offers new proposals for: (i) elevating the success of modern…”
Get full text

Intrafollicular insemination for the treatment of infertility in the dairy cow by López-Gatius, F, Hunter, R.H.F

“…Intrafollicular insemination (IFI) is based on direct introduction of a sperm suspension into a preovulatory follicle. To our knowledge, the first cases of IFI…”
Get full text

Capacitation of mammalian spermatozoa in vivo, with a specific focus on events in the fallopian tubes by Hunter, R.H.F., Rodriguez-Martinez, H.

“…This essay argues strongly that for those sperm cells involved in fertilisation, the process of capacitation represents an active and specific coordination…”
Get full text

Sperm head binding to epithelium of the oviduct isthmus is not an essential preliminary to mammalian fertilization - review by Hunter, R H F

“…In endeavouring to understand the nature of sperm-oviduct interactions in mammals, attention was focused on experimental models in which fertilization can…”
Get more information

Factors affecting spontaneous reduction of corpora lutea and twin embryos during the late embryonic/early fetal period in multiple-ovulating dairy cows by López-Gatius, F., García-Ispierto, I., Hunter, R.H.F.

“…Spontaneous reduction of advanced twin embryos has been described in high-producing, Holstein-Fresian ( Bos taurus) dairy herds. The first objective of the…”
Get full text

Differing sperm ability to penetrate the oocyte in vivo and in vitro as revealed using colloidal preparations by Coy, P., Gadea, J., Rath, D., Hunter, R.H.F.

“…The penetration ability of boar (Sus scrofa domestica) spermatozoa exposed to viscous preparations under in vivo and in vitro fertilization conditions has been…”
Get full text

MC Chang - Reproductive biologist of distinction 1908-1991 by Hunter, R. H. F.

“…Abstract This article reviews the remarkable life and major scientific achievements of the reproductive biologist M.C. Chang. His scholarly career progressed…”
Get full text

Regional influences of the Fallopian tubes on the rate of boar sperm capacitation in surgically inseminated gilts by Hunter, R H, Huang, W T, Holtz, W

“…Aliquots of ejaculated boar semen containing known numbers of spermatozoa were deposited into the caudal isthmus or rostral ampulla of the Fallopian tubes of…”
Get full text