Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Penelope A.R. Hawken"'
Autor:
Penelope A.R. Hawken, Graeme Martin, Michael N. Lehman, Jeremy Troy Smith, Christopher J. Scott, Stacey E Rietema
Publikováno v:
Reproduction, fertility, and development. 31(11)
Rams respond to acute nutritional supplementation by increasing the frequency of gonadotrophin-releasing hormone (GnRH) pulses. Kisspeptin neurons may mediate the effect of environmental cues on GnRH secretion, so we tested whether the ram response t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a9436d10d6f53913a4ec0d771c1c21e
https://pubmed.ncbi.nlm.nih.gov/31511141
https://pubmed.ncbi.nlm.nih.gov/31511141
Publikováno v:
Animal Reproduction Science. 149:163-172
We tested whether the quality of spermatozoa from mature male sheep would be affected during nutrition-induced changes in testicular mass. Merino rams were fed for 65 days with diets that increased, maintained or decreased body and testis mass (n=8 p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89318c2eedde41991f514040aa700fde
https://doi.org/10.1016/j.anireprosci.2014.07.014
https://doi.org/10.1016/j.anireprosci.2014.07.014
Autor:
Graeme Martin, C. Fabre-Nys, Dominique Blache, Tammy Esmaili, C. Viñoles, Aprille Chadwick, A. Chanvallon, Penelope A.R. Hawken
Publikováno v:
Animal Reproduction Science
Animal Reproduction Science, Elsevier Masson, 2010, 119 (3-4), pp.205-211. ⟨10.1016/j.anireprosci.2010.02.003⟩
Animal Reproduction Science, Elsevier Masson, 2010, 119 (3-4), pp.205-211. ⟨10.1016/j.anireprosci.2010.02.003⟩
International audience; In seasonally anoestrous ewes of many breeds, the introduction of rams triggers an increase in gonadotrophin secretion that induces ovulation, a phenomenon known as the 'ram effect'. The ram effect is a practical method for ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::173cd6f1fe4bdb5bb10a0475d8d64b39
https://doi.org/10.1016/j.anireprosci.2010.02.003
https://doi.org/10.1016/j.anireprosci.2010.02.003
Autor:
Graeme Martin, Tammy Esmaili, Dominique Blache, Jennifer Rodger, Penelope A.R. Hawken, Trina Jorre de St Jorre
Publikováno v:
Biology of Reproduction. 80:1146-1151
In many species, the reproductive centers of the brain are profoundly affected by sociosexual stimuli. This is particularly evident in female ungulates such as sheep, in which exposure to males switches them from reproductively quiescent to fertile.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::043b20e6280a370e934367f0305cf772
https://doi.org/10.1095/biolreprod.108.075341
https://doi.org/10.1095/biolreprod.108.075341
Do cyclic female goats respond to males with an increase in LH secretion during the breeding season?
Publikováno v:
Animal Reproduction Science. 112:384-389
The male effect is currently only used during seasonal or lactational anoestrus because the response is thought to be blocked in cyclic females by periods of elevated progesterone. In this study, we tested whether cyclic, female goats would respond t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a910b50a7ca784fb868c980c9eaebc03
https://doi.org/10.1016/j.anireprosci.2008.04.022
https://doi.org/10.1016/j.anireprosci.2008.04.022
Publikováno v:
Behavioural Brain Research. 200:304-314
Male-induced ovulation in sheep and goats (the 'male effect'), documented during the period 1940-1960, has long been shrouded in preconceptions concerning how, when and why it worked. These preconceptions became dogmas but recent research is challeng
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dac2c76eabbd82b16ad69b8462bee16
https://doi.org/10.1016/j.bbr.2009.02.004
https://doi.org/10.1016/j.bbr.2009.02.004
Roles of small RNAs in the effects of nutrition on apoptosis and spermatogenesis in the adult testis
Autor:
Irek Malecki, Greg Cozens, Graeme Martin, Yongjuan Guan, Penelope A.R. Hawken, Guanxiang Liang, Le Luo Guan, Philip E. Vercoe
Publikováno v:
Scientific Reports
We tested whether reductions in spermatozoal quality induced by under-nutrition are associated with increased germ cell apoptosis and disrupted spermatogenesis and whether these effects are mediated by small RNAs. Groups of 8 male sheep were fed for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::473ca19bc405fc5676788f82acb66a42
https://pubmed.ncbi.nlm.nih.gov/25996545
https://pubmed.ncbi.nlm.nih.gov/25996545
Publikováno v:
Reproduction, Fertility and Development. 24:523
Ewes supposedly need to be separated from rams before male stimuli can increase gonadotrophin secretion and induce ovulation. In the present study, we investigated the LH response of ewes to ‘novel’ and ‘familiar’ rams after varying periods o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b0ba1d6205ef12c839deffaaf5155a2
https://doi.org/10.1071/rd11085
https://doi.org/10.1071/rd11085
Publikováno v:
Reproduction, Fertility and Development. 17:115
Synchronisation of oestrus during the breeding season is currently only possible with exogenous hormones, but these practices are not sustainable with growing consumer demand for ‘clean, green and ethical’ products.1 Therefore non-pharmacological
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79e6f2481fa8f8144e75b49dfc5ba016
https://doi.org/10.1071/srb05abs278
https://doi.org/10.1071/srb05abs278
Publikováno v:
University of Western Australia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e41a284b3f29a27bf120ea4b297a5a9a
https://research-repository.uwa.edu.au/en/publications/304e81d9-d437-4547-9393-64752a5c7b89
https://research-repository.uwa.edu.au/en/publications/304e81d9-d437-4547-9393-64752a5c7b89
