Yes, there are home pregnancy test kits for cows that can detect the presence of pregnancy-associated glycoproteins (PAGs) in the blood or milk of cows. PAGs are proteins that are only produced when a cow is pregnant, so they can be used as a reliable indicator of pregnancy status. Here is one excellent example of home pregnancy test kits for cows:
Ringbio bovine pregnancy rapid test kit, also known as Ringbio cow pregnancy test kit, is based on sandwich immunochromatographic assay for the rapid detection of PAGs in whole blood, serum and plasma from the 28 days post AI. It can be a perfect home pregnancy test kit for cows.
It is quick, sensitive and reliable. According to local farm evaluation, the kit can detect open cows with accuracy over 99.5%, and can also detect pregnancy with accuracy over 98.5%.
Only one drop of whole blood, and 2 drops of buffer, the test result will be available in 15min. All required consumables such as needle, vacutainer blood tube, droppers, etc are packed in the kit already. No extra devices or instrument are required.
You can check this youtube video for more information,