aAa®

Animal Analysis

Sire the Need®

five cows eating grass in field

aAa® Animal Analysis

two cows grazing in green grass with windmills behind

The aAa® dairy cattle breeding guide identifies qualities a cow needs in a mating and qualities a bull brings to a mating. This information helps dairy breeders create a herd of consistently balanced, well-functioning daughters. Founded by Bill Weeks in 1950, aAa® has analyzers around the world dedicated to helping dairy farmers.

Our Mission

We help dairy farmers breed healthy, productive, long-living, trouble-free cows.

Benefits of Using aAa®

white heart with pqrst heartbeat in green circle

Better form leads to better function. Cows with balanced form are free from costly functional problems and can thrive in a variety of management systems.

white farmer icon in green circle

Imagine your favorite cow multiplied into an entire herd. Breeding for balance leads to consistent cows that are easier and more pleasurable to work with.

green circle with two hands holding money bag

More milk for size. Better feed efficiency. Greater longevity means fewer replacements needed.

white clock icon in green circle

Balanced cows are free from time consuming problems that require special handling.

3 Simple Steps

white number one icon in green circle

Have Your Cows Analyzed

Schedule a herd visit with an aAa® approved analyzer.

small number icon white 2 in green circle

Choose Your Bulls

Select high quality, analyzed bulls that fit your breeding goals.

icon white three in green circle brown outline

Sire The Need®

Match the aAa® numbers when choosing a bull for each cow.

Read testimonials from satisfied aAa® users around the world.

man in blue shirt and jeans standing in front of cows in pasture