Search Results - "Blackberry, M. A."

Level of nutrition affects leptin concentrations in plasma and cerebrospinal fluid in sheep by Blache, D, Tellam, RL, Chagas, LM, Blackberry, MA, Vercoe, PE, Martin, GB

“…In mature male sheep, the level of nutrition acutely influences the secretion of reproductive hormones. The mechanism involved is not fully understood but…”
Get full text

The use of a ‘first-wave’ model to study the effect of nutrition on ovarian follicular dynamics and ovulation rate in the sheep by Viñoles, C, Paganoni, B, Glover, K M M, Milton, J T B, Blache, D, Blackberry, M A, Martin, G B

“…We have developed an experimental model in which groups of ewes are simultaneously experiencing the first ovarian follicular wave of their oestrous cycle. We…”
Get full text

Dose-Response Studies for Pituitary and Testicular Function in Male Dogs Treated with the GnRH Superagonist, Deslorelin by Junaidi, A, Williamson, PE, Martin, GB, Blackberry, MA, Cummins, JM, Trigg, TE

“…We tested the effect of dose of GnRH superagonist on pituitary and testicular function in a study with four groups of four male dogs. The Controls received…”
Get full text

Effect of nutritional supplementation on quantities of glucose transporters 1 and 4 in sheep granulosa and theca cells by Williams, SA, Blache, D, Martin, GB, Foot, R, Blackberry, MA, Scaramuzzi, RJ

“…The stimulatory effect of nutritional supplementation on ovarian activity in sheep has been linked to an increase in glucose availability that, with insulin,…”
Get full text

Pituitary and testicular endocrine responses to exogenous gonadotrophin-releasing hormone (GnRH) and luteinising hormone in male dogs treated with GnRH agonist implants by Junaidi, A, Williamson, P E, Martin, G B, Stanton, P G, Blackberry, M A, Cummins, J M, Trigg, T E

“…The present study tested whether exogenous gonadotrophin-releasing hormone (GnRH) and luteinising hormone (LH) can stimulate LH and testosterone secretion in…”
Get more information

Metabolic factors affecting the reproductive axis in male sheep by BLACHE, Dominique, CHAGAS, Lucia M, BLACKBERRY, Margaret A, VERCOE, Philip E, MARTIN, Graeme B

“…Changes in food intake affect the reproductive axis in both sexes, and the nutritional signals involved and the sites that receive those signals are now…”
Get full text

Use of a new drug delivery formulation of the gonadotrophin-releasing hormone analogue Deslorelin for reversible long-term contraception in male dogs by Junaidi, A, Williamson, P E, Cummins, J M, Martin, G B, Blackberry, M A, Trigg, T E

“…In the present study, we tested the effect of treatment with a slow-release implant containing the gonadotrophin-releasing hormone agonist Deslorelin(TM)…”
Get more information

Intracerebroventricular Infusion of Leptin into Mature Merino Rams of Different Metabolic Status: Effects on Blood Concentrations of Glucose and Reproductive and Metabolic Hormones by Celi, P, Blache, D, Blackberry, MA, Martin, GB

“…Contents In mature Merino rams, nutrition is one of the external cues that most strongly affects the reproductive centres of the preoptic‐hypothalamic…”
Get full text

Morphometric and endocrine analyses of the effects of nutrition on the testis of mature Merino rams by Hötzel, M J, Markey, C M, Walkden-Brown, S W, Blackberry, M A, Martin, G B

“…The effects of nutrition on the testis were investigated in groups of five mature Merino rams that were fed either a sub-maintenance (low) diet or a…”
Get full text

Twenty-four-hour profiles of metabolic and stress hormones in sheep selected for a calm or nervous temperament by Rietema, S.E., Blackberry, M.A., Maloney, S.K., Martin, G.B., Hawken, P.A.R., Blache, D.

“…Even in the absence of stressors, temperament is associated with changes in the concentration of stress-responsive hormones and, possibly because of such…”
Get full text

Reproductive hormonal patterns in pregnant, pseudopregnant and acyclic captive African wild dogs (Lycaon pictus) by Van der Weyde, L.K., Martin, G.B., Blackberry, M.A., Gruen, V., Harland, A., Paris, M.C.J.

“…•Behavioural and hormonal profiles of captive female African wild dogs were examined.•We assess changes in faecal oestradiol and progestagen…”
Get full text

Evidence for a prolonged postimplantation period in the Australian sea lion (Neophoca cinerea) by Gales, N J, Williamson, P, Higgins, L V, Blackberry, M A, James, I

“…Concentrations of circulating progesterone and oestradiol were measured in 96 free-ranging, female Australian sea lions Neophoca cinerea from Kangaroo Island,…”
Get full text

Effects of nutrition on testicular size and the concentrations of gonadotrophins, testosterone and inhibin in plasma of mature male sheep by Martin, G B, Tjondronegoro, S, Blackberry, M A

“…The effects of nutrition on the hypothalamo–pituitary–gonadal axis were studied in three groups of six mature Merino rams that were fed for 56 days with a…”
Get full text

Effects of dietary zinc deficiency on the reproductive system of young male sheep: testicular growth and the secretion of inhibin and testosterone by Martin, G B, White, C L, Markey, C M, Blackberry, M A

“…The effects of dietary zinc deficiency on testicular development in young Merino rams (initial live mass, 22 kg) were tested. Four groups of five rams were fed…”
Get full text

The effect of nutrition on testicular growth in mature Merino rams involves mechanisms that are independent of changes in GnRH pulse frequency by Hötzel, M J, Walkden-Brown, S W, Blackberry, M A, Martin, G B

“…In mature Merino rams, changes in diet to below or above the requirements for maintenance of body weight lead to changes in gonadotrophin secretion and…”
Get more information

Reproduction and plasma concentrations of leptin, insulin and insulin-like growth factor 1 in growth-hormone-transgenic female sheep before and after artificial insemination by Kadokawa, H, Briegel, J R, Blackberry, M A, Blache, D, Martin, G B, Adams, N R

“…The transgenic sheep used in this study expressed an additional copy of the gene for ovine growth hormone (GH), so they had continuously high plasma…”
Get more information

Photoperiodic Control of the Concentration of Luteinizing Hormone, Prolactin and Testosterone in the Male Emu (Dromaius novaehollandiae), a Bird that Breeds on Short Days by Blache, D., Talbot, R. T., Blackberry, M. A., Williams, K. M., Martin, G. B., Sharp, P. J.

“…The objective of this study was to establish, for a short‐day breeding bird, the male emu, whether the breeding season is principally controlled by changes in…”
Get full text

Role of peripheral and central aromatization in the control of gonadotrophin secretion in the male sheep by Sharma, T P, Blache, D, Blackberry, M A, Martin, G B

“…Both testosterone and its aromatized metabolite, oestradiol-17beta, are known to act centrally on the secretion of GnRH, but the major site of aromatization is…”
Get more information

Relationships between plasma concentrations of leptin and other metabolic hormones in GH-transgenic sheep infused with glucose by Kadokawa, H., Briegel, J.R., Blackberry, M.A., Blache, D., Martin, G.B., Adams, N.R.

“…To study the regulation of leptin secretion in sheep, we infused glucose (0.32 g/h/kg for 12 h) into GH-transgenic animals ( n=8) that have chronically high…”
Get full text

Blood plasma concentrations of progesterone, sperm storage and sperm viability and fertility in Gould's wattled bat (Chalinolobus gouldii) by Hosken, D J, O'Shea, J E, Blackberry, M A

“…The fertility and viability of spermatozoa stored by male and female Gould's wattled bats, Chalinolobus gouldii , was investigated in a captive colony of ten…”
Get full text