Zobrazeno 1 - 10
of 96
pro vyhledávání: '"R. A. HOLROYD"'
Publikováno v:
Australian veterinary journal. 55(5)
The reproductive performance of beef cattle in 5 herds mated all year round in north-west Queensland was examined from 1970 to 1973. Conception rates, conception patterns and branding rates were used to assess annual reproductive performance. The lev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::62281ea2c63dd796839ecc9a9c22ff33
https://pubmed.ncbi.nlm.nih.gov/29235630
https://pubmed.ncbi.nlm.nih.gov/29235630
Autor:
D. Tutt, Steve Johnston, R. G. Holroyd, Geoffry Fordyce, Kirstin J. Hengstberger, Gry Boe-Hansen, Michael J. D'Occhio
Publikováno v:
Theriogenology. 79:946-952
Sperm chromatin status was assessed in 565 Zebu and Zebu crossbred beef bulls in extensive tropical environments using the sperm chromatin structure assay (SCSA). The SCSA involved exposure of sperm to acid hydrolysis for 0.5 or 5.0 minutes, followed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d94a39e5dbdb5709305a596d719f53d4
https://doi.org/10.1016/j.theriogenology.2013.01.012
https://doi.org/10.1016/j.theriogenology.2013.01.012
Autor:
E. Collis, Bruce Tier, Sigrid A. Lehnert, Geoffry Fordyce, Antonio Reverter, R. G. Holroyd, J. R. W. Walkley, David Johnston, K. C. Prayaga, R. J. Hawken, W. Barris, Yuandan Zhang, William Barendse, N. J. Corbet, Marina R. S. Fortes, P J Williams
Publikováno v:
Journal of Animal Science. 90:1398-1410
The genetics of reproduction is poorly understood because the heritabilities of traits currently recorded are low. To elucidate the genetics underlying reproduction in beef cattle, we performed a genome-wide association study using the bovine SNP50 c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d7c1d52ce9f75e8d97dcc0975a7921d
https://doi.org/10.2527/jas.2011-4410
https://doi.org/10.2527/jas.2011-4410
Publikováno v:
Reproduction in Domestic Animals. 46:534-553
The overall objective of one of the major research programs in the Co-operative Research Centre (CRC) for Beef Genetic Technologies is to ‘Improve female reproductive performance’ in tropical, northern Australian beef cattle herds. To address thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e7c0b9cdc2dfe60c6fed82eba0ed1e4
https://doi.org/10.1111/j.1439-0531.2011.01748.x
https://doi.org/10.1111/j.1439-0531.2011.01748.x
Publikováno v:
Animal Reproduction Science
A review of factors that may impact on the capacity of beef cattle females, grazing semi-extensive to extensive pastures in northern Australia, to conceive, maintain a pregnancy and wean a calf was conducted. Pregnancy and weaning rates have generall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7af976b869bf4b67e4a6af2079fdd085
https://doi.org/10.1016/j.anireprosci.2010.04.010
https://doi.org/10.1016/j.anireprosci.2010.04.010
Publikováno v:
Applied Animal Behaviour Science. 120:28-38
This experiment assessed the effects of different quality and quantity of handling and quality of the holding yard environment on the productivity and physiological parameters indicative of stress in beef cattle. One-hundred-and-forty-four steers wer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83ab5a67b80aa9a5915791d5a9bd430d
https://doi.org/10.1016/j.applanim.2009.05.009
https://doi.org/10.1016/j.applanim.2009.05.009
Autor:
Michael McGowan, L. A. Fitzpatrick, Geoffry Fordyce, V. J. Doogan, J. D. Bertram, R. G. Miller, R. G. Holroyd, J. De Faveri
Publikováno v:
Animal Reproduction Science. 71:51-66
Serving capacity studies were conducted on Santa Gertrudis, 5/8 Brahman, Brahman and Belmont Red bulls at 10 sites. Modifications, such as providing prior sexual experience, using females in oestrus and comparing restrained with unrestrained females,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d419f00bf3597fb76c0ee37583b50722
https://doi.org/10.1016/s0378-4320(02)00025-8
https://doi.org/10.1016/s0378-4320(02)00025-8
Autor:
R. G. Miller, G. A. Jayawardhana, J. De Faveri, L. A. Fitzpatrick, Michael McGowan, V. J. Doogan, R. G. Holroyd, Geoffry Fordyce, J. D. Bertram
Publikováno v:
Animal Reproduction Science. 71:25-37
A systematic breeding soundness examination, including assessment of serving capacity was conducted on 5/8 Brahman, Brahman and Belmont Red bulls, most aged 2–4 years, at 12 different cattle properties across northern Australia. A subset of bulls (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e610a9f78da723ad273c491dd12f4968
https://doi.org/10.1016/s0378-4320(02)00023-4
https://doi.org/10.1016/s0378-4320(02)00023-4
Publikováno v:
Animal Reproduction Science. 71:81-99
Calf output of bulls was derived using DNA typing for paternity following multiple-sire mating at two sites in northern Australia. At Swan’s Lagoon Beef Cattle Research Station, 12, mixed-age, Brahman cross bulls were continuously mated with an ave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::829c8c5864141c088c42da5675531138
https://doi.org/10.1016/s0378-4320(02)00027-1
https://doi.org/10.1016/s0378-4320(02)00027-1
Publikováno v:
The Journal of Chemical Physics. 110:8703-8713
The adsorption, decomposition, and oxidation of ethanol on Pd(110) has been studied using high-resolution x-ray photoelectron spectroscopy (XPS) and temperature-programmed XPS. The decomposition pathways of ethanol on the clean surface (to methane, h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0d4c7129bdaf61360384789cd092c89
https://doi.org/10.1063/1.478777
https://doi.org/10.1063/1.478777