Results 171 to 180 of about 129,336 (212)

Forage Mass Production, Forage Nutritive Value, and Cost Comparisons of Three‐Way Cover Crop Mixes

Crop, Forage & Turfgrass Management, 2018
Core Ideas Oat/radish/clover and oat/turnip/clover are the lowest cost for tonnage and energy. Cover crop mixes differ in protein but exceed requirements for cattle needs. Cover crop mixes differ in fiber, but no effect on cattle intake is expected. Biomass production in wetter and hotter environments results in slightly more tonnage. The use of annual
Jaymelynn K. Farney, Gretchen F. Sassenrath, Cathryn J. Davis, Deann Presley   +3 more
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Observer Variability for Disk Meter Measurements of Forage Mass

Agronomy Journal, 1992
AbstractInconsistency among research workers in estimating forage mass in grazing experiments would limit the value of forage mass estimates, but this problem has not been thoroughly examined. A study was conducted to determine variation among observers in using the disk meter to measure forage mass on tall fescue [Festuca arundinacea (L.) Schreb ...
G.E. Aiken, D.I. Bransby
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Central place foraging by breeding Cook’s petrel Pterodroma cookii: foraging duration reflects range, diet and chick meal mass

Marine Biology, 2010
Pelagic seabirds are central place foragers during breeding and variation in foraging trip duration and range reflect differences in diet and chick provisioning, through the exploitation of divergent habitats of varying productivity. We tested whether these relationships hold in small procellarriids by equipping chick-rearing Cook’s petrel Pterodroma ...
Rayner, M.J., Hartill, B.W., Hauber, M.E., Phillips, Richard A.   +3 more
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Capture and mass change: perceived predation risk or interrupted foraging?

Animal Behaviour, 2006
In animals such as birds that are capable of adjusting energy reserves behaviourally in response to starvation risk and predation risk, mass is a measure of an individual's perception of the risks in its environment. Although it is often necessary to capture and handle animals to allow the scientific study of animal behaviour, little is known about how
Ross Macleod, Andrew G. Gosler
openaire   +1 more source

Exotic forage grasses in the Brazilian semi-arid region: Forage mass, competitiveness, and botanical similarities of non-native pastures

Journal of Arid Environments, 2021
Abstract This study evaluated the competitiveness and productivity of four non-native grass species from Africa introduced in the Brazilian semi-arid region. The experiment had a randomized block design with four replications. The grasses evaluated were Cenchrus ciliaris L., Digitaria pentzii Stent, Urochloa mosambicensis Hackel Dandy, and ...
Janerson José Coêlho, Márcio Vieira da Cunha, Mércia Virginia Ferreira dos Santos, José Carlos Batista Dubeux, Alexandre Carneiro Leão de Mello   +4 more
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Bat heart mass: correlation with foraging niche and roost preference

Australian Journal of Zoology, 2010
We found that the spirit-preserved hearts of 34 species of Australian bat, representing 6 families, weighed from 0.3 to 0.65% of bat mass (mbat), a variation factor of two. The average mass of the heart specimens of the 34 species was 0.501% of bat mass and this did not vary with bat mass.
R. D. Bullen, N. L. McKenzie, K. E. Bullen, M. R. Williams   +3 more
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Growth dynamics and accumulation of forage mass of forage cactus clones as affected by meteorological variables and water regime

European Journal of Agronomy, 2021
Abstract Comprehending the relation between climatic variables and the productive and morphological characteristics of the forage cactus is essential to the adjustment of the management of its production in different agro-climatic areas. The aim of this study was to evaluate the interrelationship between the meteorological variables and the water ...
George do Nascimento Araújo Júnior, Alexandre Maniçoba da Rosa Ferraz Jardim, Marcelo José da Silva, Cleber Pereira Alves, Carlos André Alves de Souza, Sidney Anderson Teixeira da Costa, Márcio Vieira da Cunha, Adriano do Nascimento Simões, José Raliuson Inácio da Silva, Luciana Sandra Bastos de Souza, Thieres George Freire da Silva   +10 more
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Correcting Measurements of Pasture Forage Mass by Vacuuming the Stubble

Agronomy Journal, 2002
Estimates of forage mass in pasture obtained by harvesting small plots may be too low because fragments of the harvested herbage are dropped into the stubble and not recovered. Our objective was to evaluate stubble vacuuming as a means of retrieving such material, thereby improving the accuracy of forage mass estimation.
Lori J. Unruh, Gary W. Fick
openaire   +1 more source

Seasonal Variation in the Rising Plate Meter Calibration for Forage Mass

Agronomy Journal, 2012
Measurement of forage mass is critical to the management of forage allowance in grazing systems. The rising plate meter (RPM) was developed to monitor forage mass quickly and easily; however, it must be calibrated to provide reliable calculations of forage mass and the calibration coefficients may vary across seasons.
F. P. Ferraro, R. L. G. Nave, R. M. Sulc, D. J. Barker   +3 more
openaire   +1 more source

Foraging costs as a defining factor for growth and asymptotic mass

Bulletin of Mathematical Biology, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stöcker, Sabine, Weihs, Daniel
openaire   +2 more sources