The best feed for Jersey cows is high-quality forage (pasture, hay or silage) with grain and protein supplements balanced to how much milk she gives. Jerseys are smaller than Holsteins and do well on forage-heavy diets.
Start With Forage
Jerseys are efficient grazers and can eat a lot of forage relative to their size. Good options include:
- Fresh pasture in the growing season
- Grass hay, alfalfa or mixed hay
- Corn silage or haylage, well fermented and free of mold
Forage quality matters more than quantity. Poor hay means you buy more grain to make up the difference.
Grain and Protein
A milking Jersey needs extra energy and protein on top of forage. A common rule of thumb is about 1 pound of grain mix for every 3 to 4 pounds of milk, adjusted to her body condition and forage quality. Typical ingredients are corn, barley or oats for energy and soybean meal for protein. Introduce changes slowly over one to two weeks to avoid digestive upset.
Minerals, Salt and Water
- Offer a free-choice dairy mineral and salt.
- Provide clean water all the time. A lactating cow can drink 20 or more gallons per day, more in hot weather.
Special Care for Jerseys
- Milk fever: Jerseys are more prone to low blood calcium around calving. Ask your vet about a close-up dry cow diet.
- Condition: avoid letting dry cows get fat, as overly fat cows have more calving trouble.
- Butterfat: enough fiber in the diet keeps milk fat up and the rumen healthy.
Feeding by Stage
- Calves: colostrum in the first hours, then milk or milk replacer, with starter grain and water introduced early
- Heifers: forage plus a modest grain and mineral to hit growth targets without getting fat
- Dry cows: forage-based, with controlled energy and a mineral designed for dry cows
- Lactating cows: forage plus grain, balanced to milk yield
Bottom Line
For Jersey cows, build the ration on good forage, add grain and protein only as needed for milk production, and keep minerals and water available. For an exact ration, work with a dairy nutritionist or your vet.
Related reading: how much sweet feed cows need, how much silage to feed cows and beet pulp for dairy cows.
