The spatial coverage of dairy cattle urine patches in an intensively grazed pasture system
نویسندگان
چکیده
منابع مشابه
Yearly follow-up of methane turbulent exchange over an intensively grazed pasture in Belgium.
Methane emissions account for 8 % of the EU-15 GHG emissions and livestock generates 40 % of these emissions (European Commission, 2009). These fluxes are mainly measured in metabolic chambers with the drawback of bringing the cattle in an unfamiliar environment. Recent technological advances in spectroscopy now permit methane flux measurement using eddy covariance. This micrometeorological met...
متن کاملWater quality implications of nitrate leaching from intensively grazed pasture swards in the northeast US
High density animal production systems, such as management intensive grazing (MIG), can have a negative effect on water quality. Learning to manage such systems to minimize water quality impacts is essential for the environmental and economic sustainability of these types of animal production systems. Management intensive grazing is a grazing system in which animals at a high stocking density a...
متن کاملChanges in Denitrification Rate, Bacterial Denitrifier Community Structure and Abundance in Dairy-grazed Pasture Soils Treated with Cattle Urine and Dcd
Urine excreted by cattle can produce very high concentrations of available N in relatively small volumes of soil and lead to high nitrous oxide (N2O) emissions. Application of the nitrification inhibitor dicyandiamide (DCD) can inhibit nitrification. DCD application results in lower nitrate (NO3 ) concentrations and N2O emissions from denitrification in urine affected soils. However, the effect...
متن کاملThe challenges of incorporating urine and dung patches in process-based modelling of grazed agricultural systems
Animals are well known to be important in lateral transfers of nitrogen within the farm boundary. Those transfers can be categorised into those that are: (a) primarily random and smallscale dung and urine patches within a grazed paddock, (b) larger and systematic transfers resulting from preferred grazing and resting areas and (c) those that are additionally mediated by management actions such ...
متن کاملPrevalence of and Risk-Factors for Intramammary Infection in Pasture-Grazed Dairy Heifers in Late Gestation
Mastitis is a common infectious disease in dairy cattle, and is among the most economically damaging animal health problem producers face. Mastitis in dairy heifers is recognised as a distinct problem from that in older cows because of the different pattern of disease (Barkema, Schukken et al. 999; Valde, Lawson et al. 004) and unique factors that determine its occurrence (Waage, Sviland et al....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Agricultural Science
سال: 2010
ISSN: 0021-8596,1469-5146
DOI: 10.1017/s0021859610001012