Dairy nutrition
From the rumen to the ration: how cows turn forage and grain into milk, and how feeding mistakes show up in the tank.
Herd managers, feeders, nutritionists in training
Topic atlas · a BarnX learning platform
Open one topic. Get the whole system.
Cowdemy is BarnX's practical learning platform. Click a region of the cow. Land on one page: the four-compartment stomach, the short field notes, the numbers, the farm signs, and a five-question check.
The cow atlas
A dairy-cow silhouette with anatomically placed pins. Keyboard and catalog lists stay available so the drawing is never the only door.
Left-flank dairy map
Pins open a universe
Holstein pattern adapted over a PhyloPic CC0 Bos taurus silhouette. Pins follow left-flank dairy anatomy.
Live universes
Foundation · 12 min · 3 field notes
Inside the rumen
Open a dairy cow’s fermentation system and see how forage, microbes, and rumen pH turn feed into milk energy.
Applied · 11 min · 3 field notes
Starch load and SARA
Watch the same rumen when starch arrives too fast: pH spends hours too low, milk fat slips, and the fiber mat thins.
Cow health
Mastitis, heat stress, lameness, and transition disease — taught as systems you can see, not as glossary pages.
Herd health and parlor teams
Husbandry and housing
Comfort, stocking, water, and daily cow flow. The environment that makes nutrition and health possible.
Owners and barn staff
The Cowdemy family
Two learning areas. One BarnX platform.
Cowdemy is BarnX's practical learning platform for dairy and livestock knowledge. This atlas teaches the systems. Hoof Cowdemy and Feed Cowdemy are the focused programs for people working close to herds.
Operations for trim teams
Hoof Cowdemy
Practical hoof-health, trimming workflow, lesion tracking, and dairy hoof-care knowledge for trim teams and herd health staff.
Learn more →Feed and nutrition school
Feed Cowdemy
Practical feed, dairy nutrition, and livestock performance knowledge for teams who manage rations, feeding programs, and herd performance.
Learn more →
On the roadmap
Next to author
Physically effective fiber
Particle size, the fiber mat, and chewing time on a high-energy diet.
Later
Mastitis pathways
Teat canal, cistern, and contagion versus environment in the parlor.
Later
Heat stress load
Respiration, rumination, and intake when the cow cannot dump heat.
Later
Lameness and the hoof
Weight bearing, claw horn, and why a limp can be a rumen story from last month.