The article presents the results of studying influence genealogical affiliation animals and origin bulls, as well age dairy cattle, on quantitative qualitative indicators lactation performance. It is given physiological justification for obtaining high productivity cattle. have shown that use bulls different genotypes insemination in productivity. So, according to 305-day first third yields ins...

We develop a model with money and credit where agents have different productivity to study credit and allocation. We show the link between the credit rationing, productivity and monetary policy, and study the distributional effects of monetary policy on the credit constraints, money holdings, and the ability to trade across agents. An agent’s productivity reflects his ability to replenish the m...

Nacrtak Roadside chipping is a common harvesting system in Australian plantations, which utilizes a mobile chipper stationed at the field edge to produce high-quality pulp chips for export. The studied harvesting system included a feller-buncher, two grapple skidders, a flail-debarker and a disc chipper. The study goals were to determine machine productivity, operation costs, fuel consumption, ...