Milk preg testing

[Headless chicken]

We’re due to scan the whole herd in the next two weeks as our end of breeding to know where we are.

Could we milk preg test instead of getting the vet in? We’ve a new baby so any sensible precautions we can take we will

 

[dairyrow]

Yes. Do it about 40 days now. Usually find rechecks are empty when i get the vet to scan them. Find it alot less hassle.

 

[worker]

We’re due to scan the whole herd in the next two weeks as our end of breeding to know where we are.

Could we milk preg test instead of getting the vet in? We’ve a new baby so any sensible precautions we can take we will

I regret doing it on the whole herd, very high proportion of false positives. It might be easier than scanning but I would not trust it enough to dry cows off based on a positive result. Just my experience

 

[Mr Jones]

We’re due to scan the whole herd in the next two weeks as our end of breeding to know where we are.

Could we milk preg test instead of getting the vet in? We’ve a new baby so any sensible precautions we can take we will

Never had any problems with it. Must have tested over a hundred over a two year period. Only 1 query, milk test stated + but she never did calve.

 

[worker]

Never had any problems with it. Must have tested over a hundred over a two year period. Only 1 query, milk test stated + but she never did calve.

I tested 180 spring calvers in October three years ago. 20 were incorrectly reported as positive so dried off. They never did calve. An investigation by NMR decided that at the time of test they had recently lost the pregnancy, hence the false positive. Not accurate for me to use again, a member of my discussion group had a similar experience, I now have the vet for two hours and get the job done properly!

 

[Princess Pooper]

We use it every year, usually wait until about 44+ days in case we just missed seeing one heat. Very few are wrong and yes, cows will lose calves after testing PD+ however you do it.

 

[worker]

We use it every year, usually wait until about 44+ days in case we just missed seeing one heat. Very few are wrong and yes, cows will lose calves after testing PD+ however you do it.

But mine had lost their pregnancy BEFORE the test, and it still showed as incalf..nml admitted their interpretation was wrong and caution should be used if relying on for a once a year test on a block calving herd. Their reasoning was it was better. to have a false positive than a false negative... Utter tosh

 

[Holsteinfriesian90]

But mine had lost their pregnancy BEFORE the test, and it still showed as incalf..nml admitted their interpretation was wrong and caution should be used if relying on for a once a year test on a block calving herd. Their reasoning was it was better. to have a false positive than a false negative... Utter tosh

Is the vet 100% though?

 

[worker]

Is the vet 100% though?

If you pd at end of October and stopped serving in July, should be!

 

[buffalo_soldier]

I've tried it a couple of times, both were inconsistent with their results.

I'm unable to be sure if it's sampling inaccuracies or lab errors though. So just use the vet.

 

[Farmer Keith]

I use it on anything I AI and hasn’t returned then put anything served by the bull to the vet, that way you get a date if in case you’ve missed a her being served by the bull a second time.

I’d say given the current circumstances it makes perfect sense, I have done the whole herd again just before dry off in the past to, that’s always an option if you’re worried about false positives.

 

[jimmer]

I have recently been told of two instances in separate counties with different recorders , where the pots were topped up with another cows milk when the sample wasn't enough
Unbelievable
But 100 % true

 

[Princess Pooper]

I have recently been told of two instances in separate counties with different recorders , where the pots were topped up with another cows milk when the sample wasn't enough
Unbelievable
But 100 % true

I can believe that. Recorders need to be told that not testing that month is better than an inaccurate test. We do DIY and if I have any doubt at all about sample accuracy then I do not to a PD or a Johnes or any other health test on it.