Results 81 to 90 of about 129,336 (212)

The emergence of leaders and followers in foraging pairs when the qualities of individuals differ [PDF]

open access: yes, 2008
Background Foraging in groups offers animals a number of advantages, such as increasing their likelihood of finding food or detecting and avoiding predators.
Cowlishaw, G   +4 more
core   +2 more sources

Effect of irrigation water salinity and cutting age on the components of biomass of Echinochloa pyramidalis

open access: yesRevista Brasileira de Zootecnia, 2012
The objective was to evaluate the effect of salinity of irrigation water and different cutting ages on the biomass components of Echinochloa pyramidalis.
Luiz Barreto de Morais Neto   +5 more
doaj   +1 more source

Dutch survey pyrrolizidine alkaloids in animal forage [PDF]

open access: yes
Pyrrolizidine alkaloids (PAs) are secondary plant metabolites produced by a number of plants from the Asteraceae (Compositae), Boriginaceae and Fabaceae (Leguminosae) families.
Beumer, B.   +3 more
core   +1 more source

Selection, inheritance, and the evolution of parent-offspring interactions

open access: yes, 2004
Very few studies have examined parent-offspring interactions from a quantitative genetic perspective. We used a cross-fostering design and measured genetic correlations and components of social selection arising from two parental and two offspring ...
Lock, Judith E.   +2 more
core   +1 more source

N2-fixation and residual N effect of four legume species and four companion grass species [PDF]

open access: yes, 2011
Inclusion of forage legumes in low-input forage mixtures improves herbage production and soil fertility through addition of nitrogen (N) from N2-fixation.
Eriksen, Jørgen   +3 more
core   +1 more source

Aerobic stability of heat and orchardgrass round-bale silage [PDF]

open access: yes, 2004
In Arkansas, silage is typically stored as balage in long rows of round bales wrapped in plastic film. It is important to evaluate the aerobic stability of this fermented forage when it is exposed to air, especially during the winter months when most of ...
Coblentz, Wayne K.   +3 more
core   +2 more sources

Intercropped grasses for ruminant feeding

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
An integrative review was conducted to identify which intercrops, composed of grasses from tropical or temperate climates, are most commonly used in ruminant feeding and which result in higher productivity.
A.B.G. Costa   +11 more
doaj   +1 more source

Bumblebees gain fitness through learning [PDF]

open access: yes, 2007
Despite the widespread assumption that the learning abilities of animals are adapted to the particular environments in which they operate, the quantitative effects of learning performance on fitness remain virtually unknown. Here we evaluate the learning
Lars Chittka, Nigel E. Raine
core   +1 more source

Insect Pests Associated With Birdsfoot Trefoil, \u3ci\u3eLotus Corniculatus\u3c/i\u3e, in Wisconsin [PDF]

open access: yes, 2017
Insect surveys taken during 1984-1986 in Ashland and Bayfield Counties of northern Wisconsin revealed that several potential insect pest species were common in birdsfoot trefoil, Lotus corniculatus. Three plant bug species, including: the tarnished plant
Hogg, David B   +3 more
core   +2 more sources

Canopy structure and tillering of Piatã and Marandu grasses under two grazing intensities with sheep

open access: yesBioscience Journal, 2017
This study aimed to evaluate productive and structural parameters of Piatã and Marandu cultivars submitted to two grazing intensities. The experimental design was in randomized blocks with treatments in a 2 x 2 factorial arrangement (Marandu and Piatã ...
Carla Lailane Dias de Lima   +7 more
doaj   +1 more source

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