General Question

trogdor_87's avatar

Why does deer & goats poop come out in little pellets?

Asked by trogdor_87 (1076 points ) March 23rd, 2008 from iPhone

Just curious.

Observing members: 0 Composing members: 0

8 Answers

Response moderated
trogdor_87's avatar

LOL yeah I am at my girlfriend’s house and she has goats. So I figured I’d ask.

Response moderated
andrew's avatar

If I recall, it has to do with the way in which their digestive tract works… and I think animals with pellet-poos absorb most of the water that they eat.

brownlemur's avatar

Oftentimes herbivore poop is pelleted – rabbits, goats, colobus monkeys – they have helpful bacteria in their gut that breaks down plant material and leaves it in pellet form. Sometimes, the nutrients are not digested well enough the first time around, and so they must reingest the pellets (coprophagy). Cool stuff! As it turns out, herbivore poop is way easier to clean than frugivore poop. When I was a zookeeper I used to love cleaning up after the colobus monkeys and hate cleaning up after the baboons….

flipper's avatar

I still think it is a funny question.

Captain_Tetanus's avatar

A legitimate question. Let us deal with the matter as scientists.

A combination of things is involved. The answer lies in large part in the digestive tract itself. In animals such as rabbits, the feces are formed into pellets by the colon, which pushes them out into the rectum rhythmically, leading to a fairly uniform shape and size. Of course, the rectum also plays a role. Some animals have internal muscles that control the process to a degree, such that each fewmet comes out virtually the same size and shape—essentially, the rectum acts a lot like a press (maybe a better analogy would be a sausage-making machine). Caterpillars, which lack a colon or sphincter, derive the shape of their droppings entirely from the rectum, while the dropping shapes of animals such as goats, deer, and rabbits are due to a combination. Horse apples are not quite as consistent, but they’re close. When the feces are more amorphous, only the anal sphincter contributes to the shape; if the sphincter stays open a long time, you tend to get long, unbroken masses, as in humans. The phenomenon doesn’t correlate strictly with a fibrous diet (though the pellets would probably not hold their shape otherwise), since animals like cows and buffaloes have a fibrous diet but most definitely have soupy poop. Obviously, the digestive process itself—which is different in ruminants such as cattle—is also a factor.

Afos22's avatar

He said soupy poop…
:D

Answer this question

Login

or

Join

to answer.

This question is in the General Section. Responses must be helpful and on-topic.

Your answer will be saved while you login or join.

Have a question? Ask Fluther!

What do you know more about?
or
Knowledge Networking @ Fluther