Search Results - "McKelvey, W A C"

Traversing the ovine cervix – a challenge for cryopreserved semen and creative science by Robinson, J. J., McKelvey, W. A. C., King, M. E., Mitchell, S. E., Mylne, M. J. A., McEvoy, T. G., Dingwall, W. S., Williams, L. M.

“…This review brings together research findings on cervical relaxation in the ewe and its pharmacological stimulation for enhancement of the penetration needed…”
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Failure to transmit scrapie infection by transferring preimplantation embryos from naturally infected donor sheep by Low, J.C., Chambers, J., McKelvey, W.A.C., McKendrick, I.J., Jeffrey, M.

“…The objective of the study was to examine whether or not the preimplantation embryo can act as a carrier of classic scrapie infection. The study was carried…”
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Oestrogen and progesterone receptor immunoreactivity and c-fos expression in the ovine cervix by Zhao, Y, Williams, L M, Hannah, L T, Ross, A W, McKelvey, W A, Robinson, J J

“…Immunocytochemistry was used to detect the presence of oestrogen and progesterone receptors in the cervices of prepubertal lambs, seasonally anoestrous ewes,…”
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Interleukin 8 in the cervix of non-pregnant ewes by Mitchell, SE, Robinson, JJ, King, ME, McKelvey, WA, Williams, LM

“…Studies of cervical artificial insemination of ewes at hormone-synchronized oestrus indicate that the cervix remains relatively impenetrable to semen, in…”
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Observations on the transmission of scrapie in experiments using embryo transfer by Foster, J D, Hunter, N, Williams, A, Mylne, M J, McKelvey, W A, Hope, J, Fraser, H, Bostock, C

“…This investigation studied the maternal transmission of scrapie in sheep by using embryo transfer to examine the viability of highly susceptible offspring…”
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Effect of the body condition of ewes on the secretion of LH and FSH and the pituitary response to gonadotrophin-releasing hormone by Rhind, S M, McMillen, S, McKelvey, W A, Rodriguez-Herrejon, F F, McNeilly, A S

“…The effects of body fat content (body condition) of ewes on hypothalamic activity and gonadotrophin-releasing hormone (GnRH) secretion and on pituitary…”
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Lambing rates and litter sizes following intrauterine or cervical insemination of frozen/thawed semen with or without oxytocin administration by King, M.E., McKelvey, W.A.C., Dingwall, W.S., Matthews, K.P., Gebbie, F.E., Mylne, M.J.A., Stewart, E., Robinson, J.J.

“…Intrauterine insemination by laparoscopy is required to achieve acceptable lambing rates in ewes when using frozen semen but the procedure has evoked welfare…”
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The incidence of elevated progesterone post partum in Suffolk ewes lambed in early January by Dingwall, W S, McKelvey, W A C, Gebbie, F E, Robinson, J J

“…Effective oestrous synchronisation for sheep AI programmes is characterised by low progesterone concentrations at the time of insemination. In a large scale…”
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Hysteroscopic observation of cervical response in the oestrous and anoestrous ewe by King, M E, McKelvey, W A C, Ranilla, M J, Robinson, J J

“…Due to the interlocking nature of the ovine cervix semen deposition during cervical insemination takes place at the external cervical os resulting in…”
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Hysteroscopic observation of cervical response in the oestrous and anoestrous ewe by King, M E, McKelvey, W A C, Ranilla, M J, Robinson, J J

“…Due to the interlocking nature of the ovine cervix semen deposition during cervical insemination takes place at the external cervical os resulting in…”
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The incidence of elevated progesterone post partum in Suffolk ewes lambed in early January by Dingwall, W S, McKelvey, W A C, Gebbie, F E, Robinson, J J

“…Effective oestrous synchronisation for sheep AI programmes is characterised by low progesterone concentrations at the time of insemination. In a large scale…”
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The viability of ovine embryos recovered transcervically and transferred by laparoscope by Mylne, M J A, Dingwall, W S, King, M E, McKelvey, W A C, Robinson, J J

“…In previous studies (Mylne et al , 1992; McKelvey et al , 1997)) we have shown that the recovery of sheep embryos via the cervix can be facilitated by…”
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The identification and treatment of aberrant luteal activity during anoestrus in Suffolk ewes submitted for artificial insemination by McKelvey, W A C, Robinson, J J, Gebbie, F E, Lindsay, E, Dingwall, W S

“…The success of sheep breeding programmes involving sire reference schemes depends on effective oestrous synchronisation programmes that provide optimum…”
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