digestive efficiency

digestive efficiency

[dī¦jes·tiv i′fish·ən·sē]
(ecology)
A measure of the amount of ingested chemical energy actually absorbed by an animal.
References in periodicals archive ?
In contrast, varying levels of salt had a significant effect on digestive efficiency -- the amount of fat from the diet that is absorbed by the body.
There is no existing literature on whether differential digestive efficiency of selectively bred shellfish relates to growth.
By selecting for different traits, your offspring can inherit a blend of agility, speed, hazard resistance, and digestive efficiency.
Research conducted by scientists elsewhere has indicated that tannins--compounds naturally present in tree leaves and other feed materials--can block bacterial activity in the guts of ruminant livestock such as dairy cows, which in turn lowers digestive efficiency and effectiveness.
Digestive efficiency of insects can be determined from comparing the amount of food eaten with that remaining undigested in feces.
Host digestion is not completely efficient, but changes in the gut flora can raise or lower digestive efficiency," he said.
Energy content, proximate nutrient values, digestive efficiency, metabolizable energy (ME) requirements, and body mass change associated with these 2 diets were quantified.
Kate Jones, the company's president, says, "These bacteria encourage proper bowel function, improve digestive efficiency by adding important B vitamins and enzymes like lactase, which helps digest dairy products.
By reducing digestive efficiency, it could be involved in the reduction of caloric intake and considered to be an efficient weight-control ingredient.
The 770,000 [pounds sterling] study, commissioned by the Department for the Environment, Food and Rural Affairs, found that the introduction of certain plant varieties, such as birdfoot trefoil, white clover and perennial ryegrass, to a cow's diet can help to improve its digestive efficiency from a typical rate of 20 per cent to 34 per cent.
High levels of indigestible fiber increase the passage rate of all feed material through the gut, resulting in reduced digestive efficiency and perhaps leading to digestive upset.
The contributors come from the fields of comparative morphology, nutritional physiology, ecological physiology, and immunology and discuss such diverse topics as concepts of digestive efficiency, mass-balance models, and dietary fatty acids in fish.