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AnswerThe short answer is it depends on the size of the cow, if it's lactating, pregnant, the quality of the hay, etc.(Last answer said that they fed cows grain. Grain is NOT grass, cows are rudiments, grain lowers the PH levels of their stomach, causes bad tasting milk and lackluster health of the cow, generally used as a cheaper alternative, or to fatten a cow, in large scale production. Not recommended)
the question how much fans does jersey has is grammatically wrong. It should be ...how many fans does jersey has?
For all cattle, beef or dairy, the average daily intake is 2.5% of the body weight. Lactating cows tend to eat 50% more than if they were dry. So a lactating cow would eat from 3.5% to 4% of their body weight per day.
Enough to fill a cow!!
Jerseys usually will be lactating for 10 months, but can go for much longer: anecdotes suggest Jerseys can lactate for as long as 2 years if they are milked on a regular basis.
You should have 6-11 servings of grain everyday.
This is like asking, "How much does a car cost?" Or, "How much does a Ford cost?" Not all Jersey dairy cows are the same, so the prices will not be the same. An older unregistered Jersey-type dairy cow that is dry (not currently lactating (producing milk) with no milk records, etc will bring a fraction of the price of a registered Jersey in milk and in her prime from a pedigree of top producing cows with high appraisal scores. The answer: from several hundred to several thousand, with the occasional top cow bringing quite a bit more.
As much as she wants/needs. She will know when her thirst is quenched. While she is lactating (feeding puppies), she needs to keep her body hydrated.
A cow typically needs 7% (non-lactating cows) to 10% (lactating) of her body weight in water per day.
100 grams
Typically a lactating cow will eat 50% more than a dry cow would. As for energy needs, a lactating cow needs around 15% more energy than dry cows do.
Pomegranate is a fruit, not a grain.