Zobrazeno 1 - 10
of 109
pro vyhledávání: '"G C Waghorn"'
Publikováno v:
Animal Production Science. 63:201-212
Global ruminant methane (CH4)-mitigation strategies rely on data from in vivo CH4-emission measurements. This survey of 415 peer-reviewed studies of in vivo enteric-CH4 measurements from farmed ruminants details research objectives, diets, and method
Autor:
John H. Grabber, Wayne E. Zeller, G. C. Waghorn, Scott L. Kronberg, Thomas H Terrill, Mark A. Liebig
Publikováno v:
Animal Feed Science and Technology. 245:41-47
Sustainable ruminant livestock production could benefit from feedstuffs containing condensed tannin (CT) if they maintained or improved livestock health and productivity while reducing the excretion of urinary nitrogen (N), which can be readily lost
Publikováno v:
Animal Feed Science and Technology. 227:52-61
In temperate grass-based dairy cattle grazing systems, summer dry conditions can reduce feed availability and quality, and limit milk production. This study reports the effects of including high nutritive value, drought tolerant forbs, chicory (Cicho
Autor:
Phillipa Nicholas, Peter D. Kemp, Leo M. Condron, S. G. Reynolds, Ian Valentine, K. Cameron, M. Hedley, John G. Hodgson, J. Frame, C. W. Holmes, Nicola M. Shadbolt, S. T. Morris, D.J. Moot, Gavin W. Sheath, David M. Clark, D. R. Woodfield, G. C. Waghorn, R. Lucas, T. Fraser
The current status of New Zealand's pastoral industries is outlined in the context of climate and soil characteristics that ensure pasture growth at all seasons of the year in most regions. Traditionally, New Zealand's advantage for livestock product
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7232a0f2f8d3922f7b088d65e0b6191
https://doi.org/10.1201/9780429187872-8
https://doi.org/10.1201/9780429187872-8
Publikováno v:
Journal of Animal Science. 94:4326-4337
The objective of this study was to determine methane (CH) and carbon dioxide (CO) emissions from 8 beef heifers (approximately 20 mo of age and 382 ± 24.3 kg BW) measured by respiration chambers and the sulfur hexafluoride (SF) tracer technique and
Autor:
David Pacheco, Arjan Jonker, Cecile A. M. de Klein, Peter Green, G. C. Waghorn, Tony J. van der Weerden
Publikováno v:
Animal Production Science. 60:96
Enteric methane (CH4) emissions and dry-matter intake (DMI) can be accurately and precisely measured in respiration chambers (RC), whereas automated head chambers (GreenFeed; GF) and the SF6 tracer method can provide estimates of CH4 emissions from g
Publikováno v:
Animal Production Science. 60:1008
Context Perennial ryegrass (Lolium perenne L.) is an important forage in temperate ruminant agricultural systems, but its quality and composition is highly variable and can become dominated by senescent material during summer and dry periods. Nutriti
Publikováno v:
Animal Production Science. 60:524
Context Fodder beet (FB) is a popular feed for dairy cows in temperate climates due to its high yields, high digestibility, low nitrogen (N) content in the dry matter (DM) and convenience of feeding (grazing in situ). However, the risk of ruminal aci
Publikováno v:
Animal, Vol 13, Iss 6, Pp 1188-1197 (2019)
This study examined the comminution of fresh herbage, subsequent nutrient release, and the characteristics of swallowed boli from three physically and chemically contrasting forages during ingestive mastication by dairy cows. The extent and pattern o
Publikováno v:
Ecological Modelling. 313:293-306
Accurate predictions of outflow of digesta from the rumen are critical for improving modeling of feed intake, rumen function and fermentation patterns of ruminants. The main objective of this work was to develop an improved representation of rumen di