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The influences of progenitor filtering, domestication selection and the boundaries of nature on the domestication of grain crops
(Wiley Blackwell Publishing, Inc, 2021-06)
Domestication generally involves two sequential processes: initial identification of wild species with desirable characteristics (‘progenitor filtering’) and subsequent artificial and natural selection that, respectively, ...
Effect of stage of growth on the chemical composition, nutritive value and ensilability of whole-crop barley
(ELSEVIER, 2009)
Chemical composition, nutritive value and ensilability of whole-crop barley as a supplementary feed for dairy cows was investigated using a range of maturities of barley (seed coat ripe-GS 69, early dough stage-GS 82, soft ...
Feeding behavior under predatory risk in Ctenomys talarum: nutritional state and recent experience of a predatory event
(Springer Heidelberg, 2019-04)
Predatory risk is recognized as an important factor that impacts on behavior, distribution, and reproduction of animals. Facing the presence of predators’ cues, preys have developed a series of anti-predatory behaviors ...
A combination of rules govern fruit trait preference by frugivorous bat and bird species: nutrients, defence and size
(Elsevier, 2021-06)
Several hypotheses explain how sensory, anatomical and physiological constraints drive fruit preference in frugivores. Optimal diet theory (ODT) states that frugivores make decisions based on the energy contained in food. ...
The influence of energy, nutritional value and noxiousness of prey in sex- and size-biased predation by Snail Kites in southern South America
(Csiro Publishing, 2017-10)
Snail Kites (Rostrhamus sociabilis) feed almost exclusively on Apple Snails (Pomacea spp.). While field observations indicate they discard the noxious albumen gland (AG) when feeding on female snails, there is no information ...
Complementary use of neotropical savanna and grass-legume pastures for early weaning and effects on growth and metabolic status of weaners and inter-calving intervals of dams
(CENTRO INT AGRICULTURA TROPICAL-CIAT, 2017)
Extensive, rangeland-based beef production systems that predominate in the neotropical savannas of northern South America are low input-low output beef breeding systems, and their intensification faces major hurdles due ...
Life-history trait variation in tadpoles of the warty toad in response to pond drying
(2010)
We explored the response to habitat desiccation in tadpoles of the warty toad
Rhinella spinulosa in a manipulative field experiment. We built an artificial pond
system with two desiccation levels (high and low) and ...
Efectos de la proteína bruta y energía metabolizable sobre la calidad del huevo de codorniz
(Universidad de los Llanos, 2015-07-01)
El objetivo de este trabajo fue evaluar el efecto de los niveles de proteína bruta y energía metabolizable sobre las características de calidad del huevo de codornices japonesas. Fueron utilizados 864 huevos de codornices, ...
Dinâmica tecnológica da cadeia de frango de corte no Brasil: análise dos segmentos de insumos e processamento.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia de Produção - PPGEP, 2006-02-02)
This work tries to analyse technological dynamics of the slaughter poultry chain in Brazil, focusing on leader companies that participate in the input (genetic, medicament and animal nutrition) and processing segments. The ...