Please provide more information. How many animals are we talking about here? How long are they being fed? Is this on a per-day basis, or is it on a per-month or per-year basis? What is their average body weight and rate of intake in terms of pounds per day? What kind of silage (i.e., grass, barley, corn, wheat, etc.)? What is the moisture content of the silage? All these questions should be answered before we can actually answer the question properly.
Depending on the moisture content and type of silage (corn, barley, wheat, triticale, alfalfa/brome/timothy, etc.), typically a dairy cow will eat around 40 to 60 lbs of silage per day, if not more. Lactating cows tend to eat more than dry cows do, eating 5% of their body weight in dry matter, whereas a dry cow will eat around 2.5% of her body weight in dry matter per day.
A cow will always consume 2.5% of her body weight in dry matter ration no matter what she's fed. For this question we will need the moisture content and the weight of this bred cow for us to be able to make an accurate estimation as to how much she will eat in as-fed lb/day values.
Silage, hay and grain is often mixed together in a tub grinder or an automatic mixer. Different portions of silage, hay and grain is mixed together for an adequate ration mix for dairy cows, with not too much hay or too much grain, but just enough of everything to have plenty of calcium, protein, fibre, and other nutrients that a dairy cow needs in her diet.
25 to 50 gallons a day, depending on her size and how much salt is in the feed.
The basic diet of a dairy cow is a TMR (total mixed ration) this ration usually consists of soybean, silage, and hay (alfa alfa), this ration is mixed in a large machine and delivered to the manger for the cow to eat.
It would most likely eat grass or grain.
More information such as type of feed (hay, grain, silage), type of cow (dairy or beef) and period of pregnancy (first, mid or last gestation) is needed before this question can be answered.
A cow. Or, if you want to go into specifics, a dairy cow.
None. Dairy cows produce milk, not money.
the average cow produces 29 glasses of milk each day
From the grass, hay, grain or silage she consumes.
It gives more milk than what it would normally produce for its calf. That's what constitutes a cow for being a dairy cow.
Dairy
The dairy cow.