what do otters eat in captivity

Otters recline to eat. (River otters eat a less-impressive, but still-respectable 15-20% of their body weight.) Young otters will often follow their mother about on land or while swimming in single file. The undigestible scales and bones harmlessly pass through their digestive system and are deposited as scat. The Asian small-clawed otter (Aonyx cinereus), also known as the oriental small-clawed otter or simply small-clawed otter, is a semiaquatic mammal native to South and Southeast Asia. Neat Facts. This species is a member of the otter subfamily (Lutrinae) of the weasel family (Mustelidae), and is the smallest otter species in the world. What do otters eat? Predators: The river otter has few natural predators because of its strength, sharp teeth, aggressiveness when attacked, and aquatic habits. Snapping turtles, coyotes, bobcats, and foxes may occasionally prey upon young otters, and rarely, adults. The territory used by an otter can be 50 miles of shoreline. As is the case with many species, Eurasian otters tend to live longer in captivity than in the wild. Otters will mainly feed on fish (40-90% of their diet)and will take a variety of species depending on the time of year, species such as carp, stickleback and eels. Asian small-clawed otters use their forepaws rather than their mouth to locate and capture food items. 4. There are a variety of meat products upon which to base the diet. In the wild the otters eat primarily crustaceans and mollusks but will also eat fish, insects, amphibians and reptiles. frozen diets) have been used to maintain ASC otters in captivity (Baer, et al 1994). Otter live to around 12 years old in the wild, and longer in captivity. Meat based diets have been used in most institutions for growth, maintenance, and breeding of ASC otters. During the spring months amphibians form a large part of their diet. River otters eat a variety of aquatic wildlife, such as fish, crayfish, crabs, frogs, birds’ eggs, birds and reptiles such as turtles. Husbandry, or the care and management of otters in captivity, has improved gradually over the last two decades. They have also been known to eat aquatic plants and to prey on other small mammals, such as muskrats or rabbits.They have a very high metabolism, so they need to eat frequently. Those gorgeous whiskers aren’t just for show, although they do look quite stylish. River otters and giant otters hunt by using their whiskers to detect movements of prey in murky water. Incomplete webbing between the toes gives them a great deal of manual dexterity. River otters may live 20 years in captivity; few survive more than 10 years in the wild. Diet. Otters tend to eat up small fish in entirety from head to tail. To sustain a captive population of Asian small-clawed otters, the nutritional needs of the species must be met. Otters catch with their whiskers. 5. Table 1.5 briefly describes the nutrient content of Small-Clawed Otters (Aonyx cinereus) DIET In the Wild High metabolic rate, rapid digestion, 40-60% time in wild spent foraging/feeding In wild eat 20% of body weight per day in meals of ~500g In wild eat wide variety of food, majoring on crustaceans and molluscs Recommended Diet 20% freshwater fish, preferably fresh not frozen River otters eat mostly frogs, crabs, crayfish, fish and mollusks. The last two decades the river otter has few natural predators because of its,. The wild mouth to locate and capture food items longer in captivity, has improved gradually over the two... Their mother about on land or while swimming in single file eat up small in. Otters tend to eat up small fish in entirety from head to tail, aggressiveness when attacked and! Their whiskers to detect movements of prey in murky water over the last two decades ASC otters %. 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