Stage Two - Using the Mastitis Change Report (Looking for changes in your herd)
Modified on 2015/03/06 13:34 by Moon — Categorized as: Uncategorized
Prime Mastitis
is a ratio that compares a single cow's mastitis measurement against her own measurement from 7 days ago. A ratio of 1 indicates no change in measurements and she is unlikely to be infected. The higher the ratio, the higher the possibility of infection. The acceptable range of measurements is 0.95 - 1.05.
Once you have got your BMSCC to where you want it and there are no high cell count cows left in the herd, you can maintain your low BMSCC by looking for cows who have had their mastitis and yield measurements change. Using
Prime Mastitis
and
Yield 2weeks
is very helpful to monitor changes. No change in
Prime Mastitis
indicates infection levels are constant. An increase in
Prime Mastitis
indicates a likely new infection. In some cases the infection may effectively block the quarter which may result in a decrease. A drop in
Yield 2weeks
often indicates a likely infection.
The number of cows to screen for change can vary from herd to herd. A good starting point is to look at cows that have a
Prime Mastitis
ratio above
1.05
. Sometimes teat ends will be completely blocked which will result in a decrease in
Prime Mastitis
and you may want to try a value below
0.95
. This process should be used to screen your cows
twice a week
.
The
Mastitis Change Report
has useful information such as the
Prime Mastitis
ratio,
Mastitis
ratio,
Yield 2weeks
,
Time last seen
(when the cow was last seen in the shed) and
Days in Season
(number of days in lactation). The example below looks at filtering cows with a
Prime Mastitis
ratio above 1.05.
1.
Go to
Summary Reports > More Reports
2.
Under the
Health
heading select
Mastitis Change Report
3.
Click on
Add Criteria
4.
Under
Which Column
select
Prime Mastitis
5.
In the next drop down select
greater than or equals
6.
Type
1.05
in the
Value
box
7.
Click
Add
8.
Optional: Select all cows by clicking on the box next to
Actions
and choose either to draft the cows at
Inshed Action
or click on
Group Membership
to put them in a group.
Introduction - Managing your BMSCC with MilkHub
Stage One - Using the Mastitis Ratio (Getting your BMSCC under control)