Efficiency seems to be a global buzzword that is thrown about with multiple, and often unclear, meanings. Generally it is used in the context of improved feed utilization or reproductive performance. However the premise of this paper is to argue that efficiency can also be gained by simply using available genetic resources in a more optimal manor. An example of optimal use is the clear delineat...

Selection was used to create select and control lines within 4 purebred and 3 composite cattle populations. Both lines were selected for similar direct yearling weight and maternal weaning weight EBV. Select lines were selected for lower 2-yr-old heifer calving difficulty score EBV and control lines were selected for average birth weight EBV. Select (n = 6,926) and control (n = 2,043) line calv...

fisheries department, faculty of natural resources, university of guilan, sowmeh sara,1144, iran abstract this study was conducted the effect of stress on blood glucose and cortisol levels in cultured great sturgeon. blood sampling was done and then water level decreased to the half in experimental tanks. the fish were exposed in that situation and second blood sampling was taken after ...

the interest of dental research in metal-free restorations has been rising in the last 20 years following the introduction of innovative all-ceramic materials in the daily practice. in particular, high-strength ceramics and related cad/cam techniques have widely increased the clinical indications of metal-free restorations, showing more favorable mechanical characteristics compared to the early...