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At least 235 records · Page 13Linked to original sources
PubMed1990

Principles of design of fluid transport systems in zoology.

Fluid transport systems mediate the transfer of materials both within an organism and between an organism and its environment. The architecture of fluid transport systems is determined by the small distances over which transfer processes are effective and by hydrodynamic and energetic constraints. All fluid transport systems within organisms exhibit one of two geometries, a simple tube interrupted by a planar transfer region or a branched network of vessels linking widely distributed transfer regions; each is determined by different morphogenetic processes. By exploiting the signal inherent in local shear stress on the vessel walls, animals have repeatedly evolved a complex branching hierarchy of vessels approximating a globally optimal system that minimizes the costs of the construction and maintenance of the fluid transport system.

Animals↗
PubMed2006

Isolation of Salmonella enterica and Shiga-toxigenic Escherichia coli O157 from feces of animals in public contact areas of United States zoological parks.

The fecal prevalence of subclinical Salmonella enterica and Shiga-toxigenic Escherichia coli O157 among animals in human-animal contact exhibits at institutions in the United States accredited by the Association of Zoos and Aquariums was estimated to assess public health risk. The prevalence was less than 0.6% for both zoonotic pathogens among 997 animals sampled at 36 exhibits.

Animals↗
PubMed2001

Management of hepatitis B virus infections in two gibbons and a western lowland gorilla in a zoological collection.

Since 1996, three primates newly arrived at London Zoo have been found to be infected with hepatitis B virus. The species involved were white-cheeked gibbons (Hylobates leucogenys leucogenys and Hylobates leucogenys siki) and a western lowland gorilla (Gorilla gorilla gorilla). The protocols for the practical management of these cases, including the immunisation of susceptible non-human primates and the staff with recombinant hepatitis B vaccine are described, and the origin and evolution of hepatitis B infection in primates are discussed.

Animals↗