2012 Fiscal Year Final Research Report
Monitoring and evaluation of global warming gas derived from dairy cow under heat stress
| Project/Area Number |
23780257
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Agricultural environmental engineering
|
|---|
| Research Institution | Yamaguchi University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011 – 2012
|
| Keywords | 暑熱対策 / 温室効果気体 |
|---|
| Research Abstract |
The dairy cow is so heat stress-sensitive that countermeasures against recent global warming should be necessary in dairy farming. On the other hand, methane gas derived from dairy cow body, estimated to be 25% of global emission, is the major source along with the paddy rice cropping in agriculture. In order to reveal the influence of heat stress on methane and the carbon-dioxide emissions, which are exerted by the physiology state of a dairy cow, the monitoring system was constructed by using a carbon dioxide gas analyzer. The dynamic chamber method should be operated as far as certain flow conditions, otherwise a fluid analysis should be used during the night time to enhance the accuracy of the gas flux evaluation.
|
