Zobrazeno 1 - 10
of 27
pro vyhledávání: '"R. C. Dobos"'
Autor:
R. T. Woodgate, K. L. Austin, Paul L. Greenwood, R. C. Dobos, H. Bansi, A. J. Donaldson, F. A. P. Alvarenga
Publikováno v:
Crop and Pasture Science. 72:551-564
This study investigated whether geostatistical methods can be applied to severely drought-affected pastures to assess spatial variability in sward height (SH) and dry matter yield (DMY) and change in SH and DM in response to grazing. Geo-referenced S
Autor:
Gamaliel Simanungkalit, Frances Cowley, Bradley Dawson, Jamie Barwick, Roger Hegarty, Graeme Bremner, R. C. Dobos
Publikováno v:
AgriEngineering, Vol 3, Iss 14, Pp 218-229 (2021)
AgriEngineering
Volume 3
Issue 2
Pages 14-229
AgriEngineering
Volume 3
Issue 2
Pages 14-229
Time spent feeding by grazing cattle is an important predictor of intake and feed efficiency. This study examined the use of automatic supplement weighing (ASW) units for monitoring voluntary access of breeding cows (n = 430) to mineral block supplem
Publikováno v:
Animals, Vol 11, Iss 1153, p 1153 (2021)
Animals
Volume 11
Issue 4
Animals : an Open Access Journal from MDPI
Animals
Volume 11
Issue 4
Animals : an Open Access Journal from MDPI
Identifying the licking behaviour in beef cattle may provide a means to measure time spent licking for estimating individual block supplement intake. This study aimed to determine the effectiveness of tri-axial accelerometers deployed in a neck-colla
Autor:
Ian Godwin, Roger Hegarty, Maria Laura Villar, Katherine Anne Smith, Jonathon William Clay, R. C. Dobos, John Nolan
Publikováno v:
Journal of Animal Physiology and Animal Nutrition. 103:1657-1662
Nitrate (NO3¯ ) is an effective non-protein nitrogen source for gut microbes and reduces enteric methane (CH4 ) production in ruminants. Nitrate is reduced to ammonia by rumen bacteria with nitrite (NO2¯ ) produced as an intermediate. The absorptio
Autor:
Hutton Oddy, Brad C. Hine, R. M. Herd, P. F. Arthur, R. C. Dobos, Helen Smith, J I Velazco, Roger Hegarty
Publikováno v:
J Anim Sci
This experiment was to evaluate a suite of biological traits likely to be associated with genetic variation in residual feed intake (RFI) in Angus cattle. Twenty nine steers and 30 heifers bred to be divergent in postweaning RFI (RFI(p)) and that dif
Publikováno v:
Remote Sensing, Vol 12, Iss 4, p 646 (2020)
Remote Sensing; Volume 12; Issue 4; Pages: 646
Remote Sensing; Volume 12; Issue 4; Pages: 646
Behaviour is a useful indicator of an individual animal’s overall wellbeing. There is widespread agreement that measuring and monitoring individual behaviour autonomously can provide valuable opportunities to trigger and refine on-farm management d
Publikováno v:
Computers and Electronics in Agriculture. 150:394-401
Grazing is the most important activity that ruminant livestock undertake daily. A number of studies have used motion sensors to study the grazing behaviour of ruminant livestock. However, few have attempted to validate their approaches against variou
Publikováno v:
Computers and Electronics in Agriculture. 145:289-297
An animal’s behaviour can be a useful indicator of their physiological and physical state. As resting, eating, walking and ruminating are the predominant daily activities of ruminant animals, monitoring these behaviours could provide valuable infor
Autor:
Gamaliel Simanungkalit, Frances Cowley, Bradley Dawson, R. C. Dobos, Roger Hegarty, Jamie Barwick
Publikováno v:
Applied Animal Behaviour Science. 244:105491
Monitoring the licking behaviour in grazing cattle is a potential means for quantifying block supplement intake. The current study aimed to 1) evaluate the capability of an ear-tag accelerometer to identify the licking behaviour at a block supplement
Autor:
Philip Valencia, G. J. Bishop-Hurley, Paul L. Greenwood, R. C. Dobos, Bryce Little, Aaron Ingham, F.A.P. Alvarenga
Publikováno v:
J Anim Sci
Wearable sensor devices to monitor livestock behavior and location in extensive grazing systems can overcome limitations to collection and use of behavior data. These data enable generation of new phenotypes for genetic parameter estimation and decis