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Cows eat grass because that is what they are evolved to do. They are grazers; their mouths and stomachs are reasons enough that make them able to digest forage like grass and legumes. Cattle eat grass also because it's a main staple of their diet and a type of vegetation that they survive, if not thrive, from.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe grass is digested in the cow's four-chambered stomach, and the nutrients from that grass are absorbed into her system to be used for energy for reproduction (which includes gestation and lactation), maintenance, and growth. The waste is excreted as urine and feces.
Wiki User
∙ 10y agoCows are herbivorous grazers. It is basically instinct that urges them to have to want to depend on grass for their nutritional needs. Their digestive systems are also built around a grass-based diet, with four chambers in their stomach and a host of microflora in their rumen to help digest the roughage they eat. However it's not just grass that they'll eat and depend on. Forbs--in the form of legumes, most commonly--are also essential for them to eat since they provide a high source of calcium and protein they cannot get from grass (which is high in phosphorus and low in Ca) alone.
That said, Cows and Cattle will eat any sort of by-product or forage made from grasses and legumes, whether its silage, grain, hay, or man-made by-products that are essentially "garbage" after plants have gone through processing to make products specially made for humans to use. Such by-products include corn dried distillers grains (from ethanol production), beet pulp (from taking sugar from sugar-beets), soybean hulls and soybean meal (by product of soy oil, tofu, etc.), brewer's grains (by-product from the liquor-making industry, like beer), cottonseed (from separating the fluffy cotton portion of the cotton plant with the tiny seeds), and many, many more.
Wiki User
∙ 15y agothey have bacteria in the gut which breaks it up, so do grasshoppers but we dont so we cant digest grass
Wiki User
∙ 13y agoBecause they are ruminants like cows are and are physiologically designed to eat grass.
Wiki User
∙ 12y agoYes. Which is to say that all cows are herbivores.
Wiki User
∙ 13y agoIt's available and nourishing.
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How do foxes gain energy?
They gain energy by eating food.
How does an alpaca obtain energy?
The alpacas obtain energy by eating foods high in proteins, like grain, grass, and hay. When the food enters their first stomach they start to gain energy.
Why a cow eating the grass would not gain all the energy that the leaves had absorbed from the sun?
Because in the food chain, autotrophs obtain the most amout of energy because they get it directly from the sun. As the food chain decreses, the energy lesses.
Does eating shrimp makes you gain some weight?
NO
Why does my energy drain eating low carb and gain weight eating carbs?
Your energy drains when you do not eat carbs because carbs are energy-boosters. You gain weight when you eat carbs because you are not burning their energy off.
Does eating patatos make you gain weight?
Eating too much food and not getting enough exercise is what makes you gain weight.
How does a consumer get its energy?
A consumer gets its energy in multiple ways.If the consumer is low on the food chain like a prairie dog it will get its energy from producers, such as grass that use photosynthesis.If the consumer is in the middle of the food chain like a hawk it would get its energy from eating the prairie dog and also gain the leftover energy from the grass the prairie dog ate.Last but not least is if the consumer is high up in the food chain like a coyote.The coyote will get its energy from eating the hawk which in turn will give it leftover energy from the prairie dog. It could also give some energy from the grass to the coyote but that's not very likely. So basically a consumer gets its energy by what it eats. I hope this helped:)
How does consumer's get its energy?
A consumer gets its energy in multiple ways.If the consumer is low on the food chain like a prairie dog it will get its energy from producers, such as grass that use photosynthesis.If the consumer is in the middle of the food chain like a hawk it would get its energy from eating the prairie dog and also gain the leftover energy from the grass the prairie dog ate.Last but not least is if the consumer is high up in the food chain like a coyote.The coyote will get its energy from eating the hawk which in turn will give it leftover energy from the prairie dog. It could also give some energy from the grass to the coyote but that's not very likely. So basically a consumer gets its energy by what it eats. I hope this helped:)
Can eating carrot makes you fat?
Getting fat is all about managing your calorie budget, and eating too much of anything can make you fat.If you're looking at weight gain only, you're OK with eating whatever, as long as energy used up under the day is equal to the amount of energy gained under the day by eating and drinking.
Is it true eating at night makes you gain weight?
Yes it does. At 7:00, you're suppose to stop eating.
What is the original source of energy for the hawk?
well it would matter what the hawk had ate if a hawk ate a snake he would gain energy from eating the snake but also other things that the pray ate so i wold say its grass.
We gain energy from eating plants Plants can't create their energy they must first get it from the Sun?
true <second
