It depends on the stage of the pregnancy, for the first half or so the fetus is awfully small in comparison to the size of the cow. Preg checking after 45 days is recommended, before that can cause abortion. Absence of heat while an indicator isn't always reliable. Other things can cause the cessation of heats. Weather, short nocturnal heats, infection, nutritional. Internal exam is still the surest ehing we've got and unfortunetly sometimes that can be wrong.
dunmovin farms
> The absence of heat is the first
> indicator, if you watch the animal
> you will know. I can see the
> movement from the calf, but that
> is not a givin.. ive read many
> post of not being able to see it
> and met people who say they always
> look that way.. and exam will tell
> you. my understanding is that
> exams should be done during
> certain gestational periods..
> wishing you the best