Birds living in social groups establish dominance hierarchies, and taking up the dominant position influences behaviour and physiological parameters. In cooperatively breeding white-browed sparrow weavers (Plocepasser mahali), the transition from subordinate helper to dominant breeder male induces the production of a new type of song. This song contains a large number of new syllables and diffe...

Male and female, arteriosclerotic (breeder) and nonarteriosclerotic (virgin), Sprague-Dawley rats were made severely diabetic with alloxan. Two weeks later experimental animals had both carotid arteries ligated to induce a state of acute cerebral ischemia. After six weeks of cerebral ischemia either with or without severe diabetes the animals were killed. Animals which survived either the acute...

1 Have you acquired a reptile in the last five years? please circle Y / N If yes, continue with questionnaire 2 What type of reptile keeper do you consider yourself to be? Tick one option a Private reptile keeper (those keeping reptiles for pleasure) b Private reptile breeder (those keeping and breeding reptiles mainly for pleasure) c Private reptile breeder (those keeping reptiles mainly for m...

The Effect of Different Sources Selenium and Microencapsulation on Fertility Hatching Traits in Arbor Acres Broiler Breeder

Backtracking search algorithm is a novel population-based stochastic technique. This paper proposes an improved backtracking search algorithm for constrained optimization problems. The proposed algorithm is combined with differential evolution algorithm and the breeder genetic algorithm mutation operator. The differential evolution algorithm is used to accelerate convergence at later iteration ...

HCPB (Helium Cooled Pebbles Bed) Test Blanket Model (TBM) is based on solid breeder. Tritium has to be extracted using Helium purge gas flowing through breeder pebbles bed. He-stream must be cooled down and processed and all these steps are carried out in TES (Tritium Extraction System). A modeling work has been performed to study the behavior of the TES of the HCPB TBM and for Molecular Sieve ...

Spondylitis is a reemerging epidemic spinal infection in male broiler chickens (5 to 7 weeks of age) as well as broiler breeder roosters (15 to 18 weeks of age). Among various causative agents, Enterococcus species and in particular E. cecorum, a gram-positive bacterium as a gastrointestinal flora of birds, have mostly been isolated. On late September 2015, a number of 10 week...

wk). Birds grew 819 g during the 4 to 8wk period (CV = 15.0 %), as compared to only 389 g in the 8 to 12 wk period (CV = 15.3 %). Although there was no difference in the variation on a population basis, drastic changes are apparent when data was expressed in relative gains. The variation for relative gains ranged from a low of 17.2 % in the 4 to 8 wk period to a high of 41.0 % in the 16 to 18 w...

Dispersal affects both social behavior and population structure and is therefore a key determinant of long-term population persistence. However, dispersal strategies and responses to spatial habitat alteration may differ between sexes. Here we analyzed spatial and temporal variation in ten polymorphic microsatellite DNA loci of male and female Cabanis's greenbuls (Phyllastrephuscabanisi), a coo...