heat detectors

[Jersey/guernsey]

Anyone use heat detectors? If so what brand and are you happy with the results? I’m working more hours and can’t spend as much time observing the girls as I’d like and catching them in heat is harder.

[opportunity]

I let others use my bull and have them provide a heat detector they have been silver and green and cost a dollar each. they work well no idea what brand they are but I know when the cow has cycled. with mine I just let the bull have her for a few months

[Jennifer L.]

I used them quite a few years ago. Think they were called Ka-mar, or something like that. They work pretty good if you aren't seeing a cow in heat. Some cows show heat really well, others are pretty quiet and then the detectors are useful. They are expensive, but relative to getting a cow bred back in a timely manner it's not too much to pay.

You can also take a grease pen/marker that you mark livestock with (those inch thick ones that come in bright orange, pink, etc.) and mark the tailhead with that in the same place you'd glue a detector. They have to be watched and redone more than the detectors but they get rubbed off to show a cow has been jumped. If the grease mark dries out, for example, it won't rub off, so they take some maintenance.

[Jersey/guernsey]

Grease pen should have thought of that.
It’s just that two of the girls don't show much when in heat, and I'd like them bred with out to many go’s