Results 161 to 170 of about 5,995,042 (211)

Optimum silkworm feeding rates

NATURE AND SCIENCE, 2020
The article notes that non-regulation of temperature and relative humidity in silkworm feeds can lead to malnutrition, digestive disorders, edema and inhibition of growth, as well as to a number of diseases. To avoid this, the heat in the greenhouse should be adjusted according to optimal temperature norms.
Dursun Miri Adigozalova, Turay Fakhraddin Isgandarov   +1 more
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Feeding rates and prospective feeding agents for carnivorous furbearers

Russian Agricultural Sciences, 2011
The new feeding rates for furbearers allow reducing the level of protein in their rations. A structure of feeds is proposed which includes new unconventional feeds and waste products of various industrial processes.
T. M. Demina, O. V. Rastimeshina, N. N. Loenko   +2 more
openaire   +1 more source

Shredder Feeding and Growth Rates

2020
Low-order streams running through forests receive large amounts of tree leaves, which provide food for invertebrate shredders. Information on shredder ingestion of leaves and growth rates can be important in studies aiming to elucidate the ecology of shredders and how global change or stressful conditions such as exposure to pesticides may affect ...
Manuel A. S. Graça, José M. González
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Feeding rate as valuable information in primate feeding ecology

Primates, 2009
In this review I outline studies on wild non-human primates using information on feeding rate, which is defined as the food intake per minute on a dry-weight basis; further, I summarize the significance of feeding rate in primate feeding ecology. The optimal foraging theory has addressed three aspects of animal feeding: (1) optimal food patch choice ...
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The settling rates of larval feeds

Aquacultural Engineering, 1988
Abstract This note describes an investigation into the settling rates of food particles for the feeding of prawns at various stages of their development. Experimental settling velocities are reported, essential to the design of rearing tanks, for both dry and hydrated food in distilled and salt waters as a function of particle size.
John R. Backhurst, John H. Harker
openaire   +1 more source

Feeding Rates of Warblers in Spring

The Condor, 1983
-Populations of migrant warblers were correlated with populations of lepidopterous larvae in spring in a heavily forested area of southern Illinois. The birds appeared to feed entirely on these larvae, mostly taken from oaks. Estimates of gross calorie intake indicated a positive energy balance for warblers in an area with larval biomass of 0.70 g per ...
Graber, Jean W., Graber, Richard R.
openaire   +1 more source

Feeding Rates and Population Growth

Ecology, 1975
Numerous studies of natural populations have generated data relating foraging activities, the quantity and quality of available food resources, and population dynamics. In order to interpret these data we develop a comprehensive theorectical framework by constructing a model of foraging behavior and population growth in terms of energetic cost—gain ...
David J. Rapport, James E. Turner
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Feeding Rates of Seals and Whales

The Journal of Animal Ecology, 1987
SUMMARY (1) The hypothesis that rates of food consumption by marine mammals are similar to those of terrestrial mammals was tested by comparing rates of food consumption of nongrowing and growing, juvenile and adult pinnipeds (Carnivora: Caniformia) and whales (Cetacea) to terrestrial Carnivora of known mass.
S. Innes, D. M. Lavigne, W. M. Earle, K. M. Kovacs   +3 more
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Suspension feeding in ciliated protozoa: Feeding rates and their ecological significance

Microbial Ecology, 1980
The quantitative uptake of suspended particles has been studied in 14 species of ciliated protozoa in terms of the maximum rate of water cleared at low particle concentrations and of the maximum ingestion rate at high particle concentrations. The results, supported by data from the literature, show that ciliates which feed on larger particles (> 1-5μm)
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Feeding time and feeding rate and its relationship with feed intake, feed efficiency, growth rate, and rate of fat deposition in growing Duroc barrows.

Journal of animal science, 2006
Because feed is the major cost to pork production, management practices and breeding strategies are aimed at optimizing feed intake. Knowledge about the shape of feed intake and feeding behavior curves may be of interest for optimization of lean meat production. This study investigated trends based on daily measurements of feeding behavior in 200 Duroc
W M, Rauw, J, Soler, J, Tibau, J, Reixach, L, Gomez Raya   +4 more
openaire   +1 more source