The Ural type of the domestic Black-and-White mottled breed cattle features high rates milk productivity, good suitability for industrial milking technology, but productive longevity is 2.4–2.6 lactations only, although in herds there are livestock cows with a up to 10 lactations. decline associated deterioration reproductive qualities cows. In result research it was found that most resistant l...

core dental journals according to production and citation rates dr. sdj. ghazi mirsaeid * *assistant professor of medical library and information sciences dept., faculty of allied medical sciences and dental research center, tehran university / medical sciences. abstract background and aim: given the rapid expansion of dental journals in one hand, and limitation of resources on the other, it ma...

Background: Aeromonas species are Gram-negative ubiquitous bacteria, facultative anaerobic rods that infect both invertebrates and vertebrates. Various fish species develop hemorrhagic disease and furunculosis due to Aeromonas spp. Aeromonas strains generate certain active compounds such as siderophores, which are the final products of non-ribosomal peptide synthetase (NRPS) activity. The prese...

successful pasture-based milk production systems pivot on balancing dairy cows’ feed requirements with seasonal and annual fluctuations in pasture production. in order to maximise cow production from grazing dairy systems, it is necessary to reach an efficient utilization of grazed grass for feeding cows and the development of appropriate grazing management systems designed to maximize daily pa...

abstract lowland rice (oryza sativa l.) in south asia is under stress, as nitrogen removals by crops are higher than their replenishment through fertilizers. limited information is available on optimizing nitrogen dose in lowland rice to turn out higher yield. the present investigation aimed to optimize nitrogen fertilization and it’s response to the growth and yield of lowland rice. we evaluat...

This paper examines a single-stage production system that deteriorates with production actions, and improves with maintenance. The condition of the process can be in any of several discrete states, and transitions from state to state follow a semi-Markov process. The firm can produce multiple products, which differ by profit earned, expected processing time, and impact on equipment deterioratio...