Under captive breeding conditions, the black bear maintains its energy needs. According to the results of our feeding experiments over the past few years, it has been shown that certain energy can still be increased on the basis of basal metabolism.
P0czopko (1979) reported that the basal metabolic rate of most animals is a 0.75-th function of their body weight. Different animals have different basal metabolic rates. Studies have shown that the basal metabolic rate of mammalian or placental animals can be calculated using the following formula:
BMR - 70 kcal/kg body weight (or 293 kg metabolic body weight)
In the formula, BMR stands for basal metabolic rate and the unit is kcal/day (or dry coke/day). The weight of W animal is in kilograms of metabolic body weight. In the case of black bear cages or captives, free activities are changing at any time and are difficult to measure. Therefore, only a 2-30% increase in basal metabolism can be used. It is equal to maintaining energy needs.
In the low-temperature winter, the black bears are required to maintain their absolute needs. However, when hibernation occurs, the rate of basic drafts decreases, and it is necessary to maintain the decrease in energy. When the productivity is low, the relative demand for maintenance increases. rough estimate. Bears maintain energy expenditure, which accounts for about one-half of the total energy needed.
The basic energy for caged black bears to survive is usually lower than that required for free movement. The reason is that the energy required for wild animals to be used for activities and regulate body temperature in captivity is low, and it is not necessary to look around. Food, do not need to feed in the snow, not to hunt for food.
P0czopko (1979) reported that the basal metabolic rate of most animals is a 0.75-th function of their body weight. Different animals have different basal metabolic rates. Studies have shown that the basal metabolic rate of mammalian or placental animals can be calculated using the following formula:
BMR - 70 kcal/kg body weight (or 293 kg metabolic body weight)
In the formula, BMR stands for basal metabolic rate and the unit is kcal/day (or dry coke/day). The weight of W animal is in kilograms of metabolic body weight. In the case of black bear cages or captives, free activities are changing at any time and are difficult to measure. Therefore, only a 2-30% increase in basal metabolism can be used. It is equal to maintaining energy needs.
In the low-temperature winter, the black bears are required to maintain their absolute needs. However, when hibernation occurs, the rate of basic drafts decreases, and it is necessary to maintain the decrease in energy. When the productivity is low, the relative demand for maintenance increases. rough estimate. Bears maintain energy expenditure, which accounts for about one-half of the total energy needed.
The basic energy for caged black bears to survive is usually lower than that required for free movement. The reason is that the energy required for wild animals to be used for activities and regulate body temperature in captivity is low, and it is not necessary to look around. Food, do not need to feed in the snow, not to hunt for food.