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I don't know what they do in Alaska. I'm just reporting on what's been done in the zoos I've worked in, feeding the whole-prey analogue rather than whole prey, to avoid the mess that tends to get left in cages after a whole prey feeding. Some species are neater than others about eating it all, but it's generally easier all around to go with the prepared zoo diet which is basically ground-up animal minus the gut contents.
Wild canids do chew some grasses for fiber, and I'm thinking that plant material is lacking enough in very cold climates that a concentrated source of them (eg, in a moose stomach) might be where they preferentially get their fairly minimal needs satisfied. In milder climates, wild as well as captive canids in outdoor enclosures can readily obtain abundant grasses and green plant material.
The contents of a moose's stomach are very unlikely to be corn or grain, so the Alaska wolves are basically grass eating if they consume any of the moose ingesta. This behavior would make sense if this is essentially their best opportunity to eat grass in pre-harvested form.
I don't know what they do in Alaska. I'm just reporting on what's been done in the zoos I've worked in, feeding the whole-prey analogue rather than whole prey, to avoid the mess that tends to get left in cages after a whole prey feeding. Some species are neater than others about eating it all, but it's generally easier all around to go with the prepared zoo diet which is basically ground-up animal minus the gut contents.
Wild canids do chew some grasses for fiber, and I'm thinking that plant material is lacking enough in very cold climates that a concentrated source of them (eg, in a moose stomach) might be where they preferentially get their fairly minimal needs satisfied. In milder climates, wild as well as captive canids in outdoor enclosures can readily obtain abundant grasses and green plant material.
The contents of a moose's stomach are very unlikely to be corn or grain, so the Alaska wolves are basically grass eating if they consume any of the moose ingesta. This behavior would make sense if this is essentially their best opportunity to eat grass in pre-harvested form.
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