Yes. A typical lactating Jersey cow will eat 5% of her body weight per day in dry matter. In dry matter terms, a 1000 lb cow can eat upwards of 50 lbs per day. On an as-fed basis, that can range from 70 to 100 lbs per day.
Maintenance requirements are 2.5% of a cow's body weight in dry matter ration per day.
Certainly not much, especially if you are going in terms of tons, not pounds (lbs). A 1000 lb cow with or without a calf will eat 25 lbs DM of forage per day. This amount changes with moisture content, so if the grass she eats has a 60% moisture content, she'll eat maybe around 40 lbs of grass per day, as fed. In terms of tons, that's 0.02 tons per day. If you were looking for a much bigger or grandioso number for how much a cow eats per day, it looks like you're plumb outta luck!
A Brahman cow will eat 2.5% of her body weight in dry matter ration per day. When she's lactating, she will eat 50% more of this amount per day, which is 4% of her bodyweight in DM ration per day.
Cows, like all animals, do not eat water, they drink it. And cattle typically consume around 10% of their body weight in water per day.
On average a cow will consume 2% of her body weight in dry matter per day. Grass is usually 85% water (hence 15% dry matter). Thus, the calculations are as follows: 400 kg x 0.02 = 8 kg DM 8 kg DM / 0.15 DM in grass = 53.33 kg of grass as-fed per day. Thus you can estimate a 400 kg cow may eat around 53 kg of grass per day.
If you are feeding up this "cow" for slaughter, then it should get around 20 to 25 lbs per day, along with hay and/or grass.
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.
The amount of milk given per milking depends on a lot of factors including the time of year, breed of cow, number of milkings per day..... but on average the commerical cow will give about 5 gallons per day.
Yes. Mice have a much higher metabolic rate than a cow does, which means a mouse has to eat more per body weight than a cow to keep it alive and able to move around. We have to look at how much a mouse and a cow drink on a per-body weight basis to see whether a mouse will or will not dehydrate faster than a cow will. We cannot compare how much a cow drinks or a mouse drinks per day in terms of gross volume, since these are unreliable numbers to work with. Thus, typically a mouse will drink 15% to 20% of its body weight in water per day. A cow, on the other hand, will drink 7 to 10% of her body weight in water per day. This is a huge difference, and shows that mice indeed will dehydrate faster than a cow will.
Depends on several factors: how the legumes are fed, moisture content of the feed, body weight of the cow, etc.
A dairy cow will produce anywhere from 10 to 45 gallons of saliva per day.