|
|
|
|
|
| CARLOS,CAIO JOSÉ; ALVARENGA,JÉSSICA GUIMARÃES; MAZZOCHI,MARIANA SCAIN. |
| ABSTRACT In this paper, we describe the skulls of Magnificent Frigatebird Fregata magnificens (Fregatidae) and Brown Booby (Sulidae) Sula leucogaster, with focus on the structures associated with the Musculi mandibulae. We discuss the results in the context of the feeding biology of the two species, which feed mainly on flying fish and squids. Frigatebirds capture prey from just above, or just below, the water surface in flight. The hook-shaped Apex maxillae in F. magnificens can be viewed as an adaptation for grasping prey from near the water surface. Boobies catch prey by plunging; thus, the dorsoventrally flattened skull and conical bill of S. leucogaster may reduce water resistance when it dives, or swims underwater. The bill is long in both species,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Functional anatomy; Jaw apparatus; Mandible musculature; Seabirds; Syncranium. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017002000265 |
| |
|
|
| Neves,DP; Banhazi,TM; Nääs,IA. |
| Feed related costs are the main drivers of profitability of commercial poultry farms, and good nutrition is mainly responsible for the exceptional growth rate responses of current poultry species. So far, most research on the poultry feeding behaviour addresses the productivity indices and birds' physiological responses, but few studies have considered the biomechanical characteristics involved in this process. This paper aims to review biomechanical issues related to feed behaviour of domestic chickens to address some issues related to the feed used in commercial broiler chicken production, considering feed particle size, physical form and the impact of feeders during feeding. It is believed that the biomechanical evaluation might suggest a new way for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feedstuff; Feeding behaviour; Jaw apparatus; Motion. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200001 |
| |
|
|
|
