High-flying insect migrants have been shown to display sophisticated flight orientations that can, for example, maximize distance travelled by exploiting tailwinds, and reduce drift from seasonally optimal directions. Here, we provide a comprehensive overview of the theoretical and empirical evidence for the mechanisms underlying the selection and maintenance of the observed flight headings, an...

in order to perform a histomorphometric study of blood cells in male adult ostrich, blood samples were obtained from jugular vein of 10 clinically healthy male adult ostriches (2 - 3 years old). the slides were stained with the giemsa methods and the smears were evaluated for cellular morphology, with cellular size being determined by micrometry. the findings of this study revealed that the sha...

As one of the most charismatic birds around, penguins are famous for being unable to fly. But just because these can't fly, doesn't mean that they don't use their wings move. Penguins swim by using as if were flying, flapping them glide gracefully through water in search food. Perhaps even more importantly, able make some remarkably acrobatic underwater manoeuvres order escape predators or catc...

In order to evaluate geographical differences in the liver pathology of ducks infected with duck hepatitis B virus (DHBV), ducks in Chiba and Shimane, Japan, and Shanghai, China, were investigated. The numbers (DHBV positive/negative) and the maximum age of the ducks examined were 18/10 at 19 mo, 15/1 at 3 yr 4 mo, and 72/27 at 18 mo, respectively. DHBV infection was induced experimentally in d...

A 65–yrs-old man referred for an ocular discomfort and red eye. The clinical diagnosis was leech in the left eye and its species confirmed as being Limnatis nilotica. Ocular leech infestation should be considered in patients with a history of swimming or washing their face in streams and lakes. Attention should also be given to ocular leech infestation in the differential diagnosis of ocular tr...

The pharmacokinetics aspects of levofloxacin were studied in healthy and experimentally renal damaged Muscovy ducks after single intravenous (IV) and oral (PO) dose of 10 mg kg(-1) bwt. Following IV administration, elimination half-life (t 1/2( β )) and mean residence time (MRT) were longer in renal damaged ducks than in healthy ones. Total clearance (Cltot) in renal damaged ducks (0.20 L kg(-1...

West Sumatra has several breeds of germplasm ducks that have good potential for breeding, including Bayang Ducks, Kamang ducks, Pitalah and Sikumbang Janti ducks. This type duck develops in the origin area to produce eggs meat. The diversity performance these is still high. study aims determine various female during starter period. One hundred twenty heads local were used this study. an experim...

Biological flows in swimming and flying bio-locomotion usually involve intricate flexible or rigid structures that undergo large deformations displacements, as well rich mechanisms of bio-fluid interactions. Immersed boundary methods (IBMs) have gained increasing prevalence numerical investigations such biological flow problems due to their simplicity capability for simulating these on a Cartes...

STUDY OBJECTIVE To assess the health impacts of local public swimming pool and leisure provision. DESIGN Retrospective qualitative study using focus groups. Reports from two areas with contrasting experience of provision of a public swimming pool (opening and closure) were compared within the context of general reports about health and neighbourhood. SETTING Two deprived neighbourhoods in s...