All things Dairy

Johnes testing.

did my first johnes test through milk recording.
I’ve no idea how to interpret the results.

highest readings are
1.33
0.62
0.23
0.14
0.11
Rest are 0.8 or below

any help on what this means or what I should be doing?
If it’s a standard test for the UK then anything below 30 is fine. nmr have a traffic light system. So there should be a green box next to each cow on the sheet.
 

som farmer

Member
Livestock Farmer
Location
somerset
giving it cold over the weekend, saying around here, blackthorn winter, the blackthorn just coming out, another old saying, when blackthorns out, drill barley night and day. Drilled our bit yesterday, dust coming off the plough, as we worked it. Things are rapidly changing, grass is moving, our h/rye is really moving, as are the vetches, sown with it, and in grass leys.
 

sidjon

Member
Location
EXMOOR
Johnes testing.

did my first johnes test through milk recording.
I’ve no idea how to interpret the results.

highest readings are
1.33
0.62
0.23
0.14
0.11
Rest are 0.8 or below

any help on what this means or what I should be doing?

from our experience i would cull the highest three asap, longer they are on farm the more they would be shedding and infecticting other calves, as offspring can be born shedding to.
 
from our experience i would cull the highest three asap, longer they are on farm the more they would be shedding and infecticting other calves, as offspring can be born shedding to.
My experience is do nothing on the basis of one test, but others may disagree.
We have cows with one high test who have had no problems 5 years later, and cows who have had a single high test aged 10.
Johnes test are really annoying!
There will be others who disagree and will have very valid views!
 

___\0/___

Member
Location
SW Scotland
My experience is do nothing on the basis of one test, but others may disagree.
We have cows with one high test who have had no problems 5 years later, and cows who have had a single high test aged 10.
Johnes test are really annoying!
There will be others who disagree and will have very valid views!
Out vets advice is two high tests before taking action.
 
from our experience i would cull the highest three asap, longer they are on farm the more they would be shedding and infecticting other calves, as offspring can be born shedding to.
As you know I’m easily confused. So given what was posted earlier.why are they red ?
given this is what NMR produce.
0F4E5AB6-4D59-402A-BC4C-2E7A7730C5CD.png
 

sidjon

Member
Location
EXMOOR
My experience is do nothing on the basis of one test, but others may disagree.
We have cows with one high test who have had no problems 5 years later, and cows who have had a single high test aged 10.
Johnes test are really annoying!
There will be others who disagree and will have very valid views!

We're getting cows breakdown with johnes as j2, keeping them and getting a disease spiral isn't worth the risk.
 

sidjon

Member
Location
EXMOOR
As you know I’m easily confused. So given what was posted earlier.why are they red ?
given this is what NMR produce. View attachment 951160

Vets are telling us it's a disease antibody test, not a disease loading test, as we're get cows over a 100 and look healthy and ones with a single test above 30, breaking down to skin and bone within a week, to be fair I keep asking questions from the vets and not really getting a crystal clear answer
 
Vets are telling us it's a disease antibody test, not a disease loading test, as we're get cows over a 100 and look healthy and ones with a single test above 30, breaking down to skin and bone within a week, to be fair I keep asking questions from the vets and not really getting a crystal clear answer
On the basis if it’s over 1 it goes I wouldn’t have a herd. Especially when the base lIne in this country(30) is lower than most of Europe. Good management of colstsrum and cows at calving means it’s in decline here. No clinical cases for 2 seasons
 

sidjon

Member
Location
EXMOOR
On the basis if it’s over 1 it goes I wouldn’t have a herd. Especially when the base lIne in this country(30) is lower than most of Europe. Good management of colstsrum and cows at calving means it’s in decline here. No clinical cases for 2 seasons

We've gone from 35% reds to less than 5% this year, btb not helping the cows immune system and block calving does help,as one cow shedding can infect many calves through muck in mouth and we calf outside, we're buying cow's and some farmers are saying they're Johnes free, but only test 30 cows once and we milk test them and 50% sometimes turn out to be reds, I would try to keep Johnes out at any cost from Experience the long term cost is no fun.
 
Out vets advice is two high tests before taking action.
I'm in the pilot programme here in Ireland. 2 positives in the blood test, both had to have a second test, second time a dung test for some reason, again both positive and both gone to the factory the morning following the retest result. We have a bit of work to do organising calving boxes and colostrum management for next year.
 

DairyGrazing

Member
Mixed Farmer
Location
North West
I think they did that just to get the ball moving. You can imagine some farmers been told to test the herd being like I'm not bloody doing that. The hope being the 30 cow test would catch a few then people would test the whole herd.
 

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