Zobrazeno 1 - 10
of 14
pro vyhledávání: '"N. W. Tomkins"'
Beef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniques
Autor:
M. Bai, J. I. Velazco, T. W. Coates, F. A. Phillips, T. K. Flesch, J. Hill, D. G. Mayer, N. W. Tomkins, R. S. Hegarty, D. Chen
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 3469-3479 (2021)
The development and validation of management practices to mitigate greenhouse gas (GHG) emissions from livestock require accurate emission measurements. This study assessed the accuracy of a practical inverse dispersion modelling (IDM) technique to q
Externí odkaz:
https://doaj.org/article/d81eedfda3c142679897b9fd8139dd43
Publikováno v:
Animal Production Science. 60:610
Context In extensive northern grazing systems, supplementation of P is recommended to maximise cattle growth rates and reproduction. Improving the absorption of P for the animal by influencing metabolic pathways has the potential to improve both the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ec72fdaff68f9ccd6f29c5d8fe09106
https://doi.org/10.1071/an17601
https://doi.org/10.1071/an17601
Autor:
N. W. Tomkins, E. Charmley
Publikováno v:
Animal, Vol 9, Iss 12, Pp 2029-2038 (2015)
Methane (CH4) emissions associated with beef production systems in northern Australia are yet to be quantified. Methodologies are available to measure emissions, but application in extensive grazing environments is challenging. A micrometeorological
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b229dd364b09110d913cd595cc363df9
https://doi.org/10.1017/s1751731115001688
https://doi.org/10.1017/s1751731115001688
Autor:
Alexandre Berndt, N. W. Tomkins
Publikováno v:
Animal, Vol 7, Iss, Pp 363-372 (2013)
The growing global demand for food of animal origin will be the incentive for countries such as Australia and Brazil to increase their beef production and international exports. This increased supply of beef is expected to occur primarily through on-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0173c23507dfb197b75a733dd73fc261
https://doi.org/10.1017/s1751731113000670
https://doi.org/10.1017/s1751731113000670
Autor:
David R. Yáñez-Ruiz, Leticia Abecia, Charles J. Newbold, Pablo G. Toral, Eduarda Molina-Alcaide, A. I. Martín-García, G. Martínez, N. W. Tomkins
Publikováno v:
Journal of Dairy Science. 95:2027-2036
Several technologies have been tested to reduce enteric methanogenesis, but very few have been successfully used in practical conditions for livestock. Furthermore, the consequences of reduced rumen methane production on animal performance and milk q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e3f8c557038388e4a20c9746f4bf279
https://doi.org/10.3168/jds.2011-4831
https://doi.org/10.3168/jds.2011-4831
Autor:
Steven Harden, Paul L. Greenwood, R. A. Hunter, N. W. Tomkins, Gregory S. Harper, PG Allingham
Publikováno v:
Journal of Animal Science. 87:3114-3123
This study determined the extent to which bovine longissimus lumborum muscle (LLM) myofibers are influenced by nutrition for 120 d from weaning and the time-course of recovery after severe postweaning nutritional restriction. After weaning, 3 groups
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d95c2f9525cc076baf56e8cc9ea8566
https://doi.org/10.2527/jas.2009-1936
https://doi.org/10.2527/jas.2009-1936
Publikováno v:
Animal Production Science. 50:503
Belmont red and Brahman cows (n = 50) were allocated to one of two groups to determine if β-carotene supplementation could reduce the incidence of mastitis and consequently improve calf productivity from birth to weaning. Both groups received a mola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc43d06adfdd1bbe9c326ed5652a08f3
https://doi.org/10.1071/an09171
https://doi.org/10.1071/an09171
Publikováno v:
Animal Production Science. 49:1053
Enteric fermentation has been estimated to be responsible for 64.2 Mt CO2-e, or ~16% of Australia’s greenhouse gas emissions (Australian Greenhouse Office 2007). A bromochloromethane (BCM) formulation, previously shown to inhibit methanogenesis, wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::665af7f99a6a351e457c03dc395944f3
https://doi.org/10.1071/ea08223
https://doi.org/10.1071/ea08223
Publikováno v:
Australian Journal of Experimental Agriculture. 46:1571
The effects of post-weaning nutrient restriction on growth, carcass characteristics and beef quality were determined. Belmont Red weaner steers (n = 100) were allocated to an initial slaughter group and 3 treatment groups of 120 days duration: rapid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd06e2f1639086db681b8c6557e8d97a
https://doi.org/10.1071/ea05227
https://doi.org/10.1071/ea05227