Results 11 to 20 of about 129,336 (212)

Mass Fluctuations Suggest Different Functions of Bimodal Foraging Trips in a Central-place Forager [PDF]

Behavioral Ecology, 2012
The function of a foraging trip (self-feeding or provisioning) and the spatial distribution of food resources play an essential role in foraging decisions of central-place foragers. Theory predicts that if foraging patches optimal for self-feeding and provisioning are spatially separated, a bimodal foraging strategy should often be favored.
Jorg Welcker, Anika Beiersdorf, Øystein Varpe, Harald Steen   +3 more
openaire   +2 more sources

Forage and splanchnic tissue mass in growing lambs: Effects of dietary forage levels and source on splanchnic tissue mass in growing lambs [PDF]

British Journal of Nutrition, 1994
Forty-two crossbred lambs (33·4 kg initial body weight; twenty-four wethers and eighteen ewes) were used in a 42 d experiment with a 2 × 3 factorial treatment arrangement to determine effects of forage level and source on splanchnic tissue mass. Diets were 250 and 750 g/kg of chopped lucerne (Medicago sativa) (A), ryegrass (Lolium multiflorum)–wheat ...
W, Sun, A L, Goetsch, L A, Forster, D L, Galloway, P K, Lewis   +4 more
openaire   +2 more sources

Breeding limits foraging time: evidence of interrupted foraging response from body mass variation in a tropical environment [PDF]

Journal of Avian Biology, 2017
Birds should store body reserves if starvation risk is anticipated; this is known as an ‘interrupted foraging response’. If foraging remains unrestricted, however, body mass should remain low to limit the predation risk that gaining and carrying body reserves entails.
Nwaogu, Chima J., Dietz, Maurine W., Tieleman, B. Irene, Cresswell, Will   +3 more
openaire   +4 more sources

Forage mass and the nutritive value of pastures mixed with forage peanut and red clover [PDF]

Revista Brasileira de Zootecnia, 2012
The objective of this research was to estimate three pasture-based systems mixed with elephantgrass + spontaneous growth species, annual ryegrass, for pasture-based system 1; elephantgrass + spontaneous growth species + forage peanut, for pasture-based system 2; and elephantgrass + spontaneous growth species + annual ryegrass + red clover, for pasture ...
Azevedo Junior, Ricardo Lima de, Olivo, Clair Jorge, Bem, Cláudia Marques de, Aguirre, Priscila Flores, Quatrin, Mauricio Pase, Santos, Marciele Machado dos, Bratz, Vinicius Felipe, Horst, Tiago   +7 more
openaire   +4 more sources

Photosynthetic Physiological Basis of Forage Mass Stability in a Progeny of Rhizome-Rooted ‘Qingshui’ Medicago sativa L.

Agronomy, 2023
Rhizome-rooted alfalfa (Medicago sativa L.) is an excellent forage for establishing grazing and ecological grasslands, requiring a high and stable yield. Studying the genetic and physiological basis of stable expression of biomass traits is essential for
Yun A, Shangli Shi, Jinqing Zhang, Xiaolong Li, Fang Jing, Huihui Zhang, Ruihong Ma   +6 more
doaj   +1 more source

Características da pastagem de azevém e produtividade de cordeiros em pastejo Ryegrass pasture characteristics and lamb productivity in grazing

Revista Brasileira de Zootecnia, 2009
Objetivou-se avaliar a produção da pastagem de azevém, a qualidade da forragem e a produtividade animal por área em três sistemas de produção: cordeiros desmamados precocemente, aos 40 dias de idade, e mantidos em pastagem de azevém (Lolium multiflorum ...
Ticiany Maria Dias Ribeiro, Alda Lúcia Gomes Monteiro, César Henrique Espírito Candal Poli, Aníbal de Moraes, Ana Luisa Palhano Silva, Carina Simionato de Barros   +5 more
doaj   +1 more source

The role of sand lances (Ammodytes sp.) in the Northwest Atlantic ecosystem: a synthesis of current knowledge with implications for conservation and management [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Staudinger, M. D., Goyert, H., Suca, J. J., Coleman, K., Welch, L., Llopiz, J.
Altman, Irit, Applegate, Andew, Auster, Peter J., Baumann, Hannes, Beaty, Julia, Boelke, Deirdre, Coleman, Kaycee, Goyert, Holly, Kaufman, Les, Llopiz, Joel K., Loring, Pam, Moxley, Jerry, Paton, Suzanne, Powers, Kevin, Richardson, David E., Robbins, Jooke, Runge, Jeffrey A., Smith, Brian, Spiegel, Caleb, Staudinger, Michelle D., Steinmetz, Halley, Suca, Justin J., Welch, Linda, Wiley, David N.   +23 more
core   +1 more source

Produção de cordeiros em pastagem de azevém e trevo-branco sob diferentes níveis de resíduos de forragem Lamb production in a mixture of italian ryegrass and white clover under different forage mass levels

Pesquisa Agropecuária Brasileira, 1999
Na presente pesquisa, objetivou-se analisar os efeitos de diferentes níveis de resíduos de forragem na produção de cordeiros. O experimento foi estabelecido em Tupanciretã, região do Planalto Médio do Estado do Rio Grande do Sul, em uma pastagem de ...
Marcos Weber do Canto, Eduardo Londero Moojen, César de Faccio Carvalho, José Henrique Souza da Silva   +3 more
doaj   +1 more source

Forage herbs improve mineral composition of grassland herbage [PDF]

, 2011
Provision of an adequate mineral supply in the diets of ruminants fed mainly on grassland herbage can present a challenge if mineral concentrations are suboptimal for animal nutrition.
Eriksen, Jørgen, Høgh-Jensen, Henning, Pirhofer-Walzl , K., Rasmussen , Jim, Rasmussen, Jesper, Sanderson, M.A., Søegaard, Karen   +6 more
core   +1 more source

Solving the woolly mammoth conundrum: amino acid 15N-enrichment suggests a distinct forage or habitat [PDF]

, 2015
Understanding woolly mammoth ecology is key to understanding Pleistocene community dynamics and evaluating the roles of human hunting and climate change in late Quaternary megafaunal extinctions. Previous isotopic studies of mammoths’ diet and physiology
Longstaffe, Fred J, Metcalfe, Jessica Z, Schwartz-Narbonne, Rachel, Zazula, Grant   +3 more
core   +2 more sources