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Nutrition in Bats

By

Joeke Nijboer

, PhD, Nijboer Consultancy

Last full review/revision Aug 2020 | Content last modified Sep 2020
Topic Resources

Captive insectivorous bats frequently are fed diets consisting primarily of mealworms. Crickets, fruit flies, morio worm (superworm), blowfly larvae, and other insects also are commonly offered. Because insects typically are low in calcium, they should be maintained on a calcium-enriched diet so that the bat will consume the insect’s high-calcium gut contents. A suitable mealworm diet can be formulated using 35% wheat middlings, 35% ground dry dog or cat food, and 30% ground calcium carbonate, which should be fed at least 3 days. Gels containing water and a calcium solution can also be fed. Frugivorous bats should be fed a diet that contains a low amount of iron to prevent iron storage disease. The diet could contain a low-iron pellet for birds mixed with apples, bananas, and oranges.

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Often, captive insectivorous bats must be fed by hand when flying insects are not available. Some bats can be trained to accept insects from a food dish by being placed directly on the live food.

Many insectivorous bats can be maintained successfully in captivity using artificial liquid or solid diets (see Table: Diets of Selected Mammals Diets of Selected Mammals Captive insectivorous bats frequently are fed diets consisting primarily of mealworms. Crickets, fruit flies, morio worm (superworm), blowfly larvae, and other insects also are commonly offered... read more ). Liquid diet can be placed in shallow plastic trays positioned near wire or branches for the bats to land on and hang from while feeding. Leftover liquid diet should be replaced daily. Solid diets usually include bananas as the major ingredient. Additional ingredients frequently offered include papaya, apple, pear, melon, grape, and cooked carrot and sweet potato. Canned cat or dog food, chopped eggs, and mealworms also have been fed with the fruit.

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Large animal neonates are born immunocompetent but lack antibodies. In their first few hours of life, neonates must suckle good quality colostrum from the dam to obtain maternal antibodies (immunoglobulins). Which of the following factors might compromise the quality of colostrum?
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