Browsing by Author "Khalid, M."

Cervical expression of hyaluronan synthases varies with the stage of the estrous cycle in the ewe

Perry, K.; Haresign, W.; Wathes, D. C.; Pitsillides, A. A.; Khalid, M. (2012-01-05)

Cervical expression of hyaluronan synthases varies with the stage of the estrous cycle in the ewe

Perry, K.; Haresign, W.; Wathes, D. C.; Pitsillides, A. A.; Khalid, M. (2012-04-01)

The natural cervical relaxation which occurs at estrus in the ewe may be initiated by binding of hyaluronan (HA) to its receptor CD44. Indeed, we have previously shown that HA content and fragment size in the ovine cervix ...

The effect of hCG treatment on Day 12 post-mating on ovarian function and reproductive performance of ewes and ewe lambs

Khan, T. H.; Beck, N. F. G.; Khalid, M. (2009-01-24)

The effect of hCG treatment on Day 12 post-mating on ovarian function and reproductive performance of ewes and ewe lambs

Beck, Neil F. G.; Khan, T. H.; Khalid, M. (2009-01-24)

The objectives of this study were to determine the effect of a single intramuscular injection of 200 IU hCG (Chorulon) on Day 12 post-mating on ovarian function and subsequent lambing performance in ewes and ewe lambs bred ...

Effect of post-mating GnRH analogue (buserelin) treatment on PGF(2 alpha) release in ewes and ewe lambs

Mann, G. E.; Khalid, M.; Khan, T. H.; Beck, Neil F. G. (2006)

The objectives of this study were to determine the effects of buserelin or saline treatment on ovarian function (Experiment 1), plasma PGFM concentrations and oxytocin stimulated prostaglandin F2α (PGF2α) release (Experiment ...

Effect of progesterone priming on ovarian angiogenic factors during late follicular and early luteal development

Christensen, Ana Carolina Martinelli (Aberystwyth UniversityBiological, Environmental and Rural Sciences, 2009-11-09)

Infertility is a major issue in both human and animal medicine with a great economic impact on reproduction. In order to better understand the common causes of infertility it is necessary to understand the basic physiology ...

The effects of GnRH analogue (buserelin) or hCG (Chorulon) on Day 12 of pregnancy on ovarian function, plasma hormone concentrations, conceptus growth and placentation in ewes and ewe lambs

Beck, Neil F. G.; Khalid, M.; Khan, T. H. (2007-12)

The objectives of this study were to determine the effect of GnRH analogue (buserelin) or human chorionic gonadotrophin (hCG, Chorulon) treatment on Day 12 of pregnancy on ovarian function, plasma hormone concentrations, ...

Factors affecting the survival of sheep embryos after transfer within a MOET program

Bari, F.; Khalid, M.; Haresign, William; Murray, A.; Merrell, B. (2003-03-01)

Multiple ovulation and embryo transfer (MOET) has the potential to increase the rate of genetic improvement in sheep. However, better realization of this potential requires maximum survival rates of transferred embryos of ...

hCG treatment on day of mating improves embryo viability and fertility in ewe lambs

Hastie, Peter M.; Khalid, M.; Beck, Neil F. G.; Khan, T. H. (2003)

An investigation was conducted to determine the effects of supplementing hCG at mating time on luteal function, conceptus growth, placentation and reproductive performance in Texel×Clun Forest ewe lambs. After oestrus ...

Hyaluronan (HA) content, the ratio of HA fragments and the expression of CD44 in the ovine cervix varies with the stage of the oestrous cycle

Perry, K.; Haresign, William; Wathes, D. C.; Khalid, M. (2010-07-01)

The complex anatomy of the ovine cervix limits the success of trans-cervical artificial insemination in sheep. However, there is a degree of natural relaxation of cervix at oestrus that is accompanied by an increase in the ...

Hyaluronan (HA) content, the ratio of HA fragments and the expression of CD44 in the ovine cervix vary with stage of the oestrous cycle

Perry, K.; Haresign, W.; Wathes, D. C.; Khalid, M. (2010-07-01)

Hyaluron (HA) content, the ratio of HA fragments, and the expression of CD44 in the ovine cervix varies with stage of the oestrous cycle

Perry, K.; Haresign, W.; Wathes, D. C.; Khalid, M. (2010-07-01)

Intracervical application of hyaluronan improves cervical relaxation in the ewe

Perry, K.; Haresign, W.; Wathes, D. C.; Khalid, M. (2010-12)

Artificial insemination (AI) using frozen semen is a key method to enable rapid genetic improvement but its use in the sheep industry is currently limited by poor fertility. Laparoscropic AI is most effective but has not ...

Milk production and composition, ovarian function, and prostaglandin secretion of dairy cows fed omega-3 fats

Petit, H. V.; Dewhurst, Richard J.; Scollan, Nigel D.; Proulx, J. G.; Khalid, M.; Haresign, William; Twagiramungu, H.; Mann, G. E. (2002-04)

Four multiparous Holstein cows were used in a 4 × 4 Latin square experiment to study the effects of fat sources rich in omega-3 fatty acids on milk production and composition, follicular development, and prostaglandin ...

Milk production, milk composition and reproductive function of dairy cows fed different fats

Petit, H. V.; Dewhurst, Richard J.; Proulx, J. G.; Khalid, M.; Haresign, W.; Twagiramungu, H. (2001-06)

Thirty-five non-gestating multiparous Holstein cows averaging 571 kg of BW (SE = 8) were allotted at 9 wk postpartum to one of two dietary fat supplements based on either Megalac® (Volac Ltd., Roston, Hertfordshire, UK) ...

Progesterone exposure of the preovulatory follicle in the seasonally anestrous ewe alters the expression of angiogenic growth factors in the early corpus luteum

Christensen, A. C. M.; Haresign, W.; Khalid, M. (2012-05-01)

Gonadotrophin releasing hormone (GnRH)-induced ovulation in seasonally anestrous ewes is associated with a high incidence of defective corpora lutea (CL), which can be completely eliminated by priming ewes with progesterone ...

Progesterone exposure of the preovulatory follicle in the seasonally anestrous ewe alters the expression of angiogenic growth factors in the early corpus luteum

Christensen, A. C. M.; Haresign, W.; Khalid, M. (2012-02-25)

Gonadotrophin releasing hormone (GnRH)-induced ovulation in seasonally anestrous ewes is associated with a high incidence of defective corpora lutea (CL), which can be completely eliminated by priming ewes with progesterone ...

Relationship between intrafollicular concentrations of parathyroid hormone-related peptide (PTHrP) and steroid hormones in oestrogenic and non-oestrogenic ovarian follicles in the mare

Beck, Neil F. G.; Abbas, Syed K.; Care, A. D.; Charles, J. M.; Khalid, M. (2002-11-14)

The objective of the present study was to determine whether parathyroid hormone-related peptide (PTHrP) is present in the equine follicular fluid and if so, how it is related to the follicular development in the horse. For ...

The repeatability of superovulatory response and embryo recovery in sheep

Bari, F.; Khalid, M.; Wolf, B. T.; Haresign, William; Murray, A.; Merrell, B. (2001-07)

Over an 8-year period, a total of 328 Scottish Blackface donor ewes were involved in a MOET program. They were synchronized with fluorogestone acetate sponges and superovulated with ovine FSH. After the onset of estrus, ...

Browsing by Author "Khalid, M."

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Browsing by Author "Khalid, M."

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