Why there are quite few urine early pregnancy test kit for cow?

Unlike human, pregnant cows do not produce the hormone HCG, which makes it impossible to use a human urine early pregnancy test kit for cow testing.

Over-the-Counter Anxiety: Selling the Home Pregnancy Test – Nursing Clio

Pregnancy Test Timeline - Office of NIH History and Stetten Museum

Buy Cow Pregnancy Test Strips, Early Result Pregnancy Test Reliable and Quick Early Detection of Pregnancy, 25 MLU/mL Can Be Detected Within 5

Cow Pregnancy Test Strips, Early Result Pregnancy Test Reliable and Quick Early Detection of Pregnancy, 25 MLU/mL Can Be Detected Within 5 Minutes

Frontiers Urine Analysis has a Very Broad Prospect in the Future

Is My Dog Pregnant?

A simple, inexpensive and portable on-farm test for pregnancy diagnosis and ovary status in cows via chemical analysis of urine - ScienceDirect

Should you take a pregnancy test? 5 Signs and When to Take It

Beef Cow-Calf Management Guide

This is What the First Home Pregnancy Test Looked Like, Smart News

Higoodz Bovine Cow Rapid Early Pregnant Pregnancy Test Kit Pregnancy Test Card For Dairy Cow Livestock,Pregnancy Test Kit For Cattle,Cattle Farm Equipment

How Accurate Is an hCG Blood Pregnancy Test?