Pastoral 21 results for C-Dax Pasture Meter
During 2008, AgResearch, DairyNZ and Massey University with support of
Pastoral 21 Feeds Program conducted extensive independent calibration
of the C-Dax Pasture Meter on dairy pastures throughout New Zealand. Pastoral
21 is funded by NZ Governments Foundation for Research, Science and Technology
(FRST), DairyNZ, Fonterra and Meat &Wool NZ.
Standardised trials were run in Northland (Dargaville), Waikato (Ruakura),
Taranaki (Hawera), Canterbury (Lincoln) and Southland (Wallacetown). The
results of these trials are shown in the table below. C-Dax are pleased
to provide you this information on behalf of the Pastoral 21 team.
Results to date indicate that 35-40 mm on the C-Dax Pasture Meter is
equivalent to 7–8 clicks and is the desired post-grazing residual
to ensure cows are offered high quality pasture in subsequent grazings.
Measuring post grazing residual height with the C-Dax Pasture Meter
as the cows are being collected for milking provides instantaneous feedback
on feeding levels and enables staff to make objective decisions on feed
allocation for the next grazing period i.e. sending the herd back to that
paddock to achieve the desired residual or moving them to a new paddock.
| REGION |
MULTIPLIER
(FACT) |
CONSTANT
(PLUS) |
| Northland |
22.6 |
744 |
| Waikato |
16.3 |
700 |
| Taranaki |
21.8 |
827 |
| Canterbury |
18.1 |
729 |
| Southland |
17.7 |
825 |
| Table 1. VALID FOR
THE C-DAX PASTURE METER ONLY |
For ease of use the calibration equations have been restricted to a single
constant and multiplier and are only valid for use with C-Dax Pasture
Meter. These average calibration equations for each region provide a great
starting point if you generally use one calibration equation throughout
the year.
For further information contact: Dr Robyn Dynes, ph
03 321 8800 robyn.dynes@agresearch.co.nz
www.pasturemeter.co.nz
|
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