نتایج جستجو برای: extensive husbandry
تعداد نتایج: 177331 فیلتر نتایج به سال:
A and how the response of management affects them are considered. The information collected in a soil survey helps in the development of land-use plans and evaluates and predicts the effects of land use on the environment. Soil surveys were first authorized in the United States in 1896. Although extensive writings on husbandry by L.J.M. Columella were published in the first century A.D., practi...
The development of cold-chain logistics will not only contribute to solving the food safety problems, but also effectively promote the development of agriculture industry and animal husbandry industry. In order to be well informed of the core competence in cold-chain logistics enterprise, we evaluated the competence of cold-chain logistics enterprise in China with the combination of analytic hi...
If the scientist needs to contact the animal facility after any study to inquire about husbandry details, this represents a lost opportunity, which can ultimately interfere with the study results and their interpretation. There is a clear tendency for authors to describe methodological procedures down to the smallest detail, but at the same time to provide minimal information on animals and the...
Zoo animal husbandry aims at constantly improving husbandry, reproductive success and ultimately animal welfare. Nevertheless, analyses to determine factors influencing husbandry of different species are rare. The relative life expectancy (rLE; life expectancy (LE) as proportion of longevity) describes husbandry success of captive populations. Correlating rLE with biological characteristics of ...
The house mouse, Mus musculus, was established in the early 1900s as one of the first genetic model organisms owing to its short generation time, comparatively large litters, ease of husbandry, and visible phenotypic variants. For these reasons and because they are mammals, house mice are well suited to serve as models for human phenotypes and disease. House mice in the wild consist of at least...
Responsibilities they are given in relation to rat care and management. 3 Handling rats for routine husbandry should not be linked with ie neither proceed.R. rattus black rat is less aggressive than Norway rats and have been replaced by. Published reports of nutritional and breeding research. Neuroanatomical.HUSBANDRY STANDARDS FOR KEEPING NAKEDMOLE RATS IN. PDF created with pdfFactory trial ve...
Heritability of egg size is approximately 60%-a very high value compared to the heritability of most other economic characters-and indicates that individual selection for egg size is to be preferred to family selection. A further simplification of the problem of changing the egg size of a flock by breeding selection is possible as a result of a study of genetic correlations between the weights ...
The group of natural organic compounds referred to as humic substances are increasingly attracting attention both in Russia and globally. These exhibit a fairly extensive range biological properties, thus finding successful application animal husbandry, agriculture veterinary medicine. Fulvic acid represents one the most prominent representatives this substances. chemical properties fulvic make...
This guideline, developed by the Office International des Epizooties for the monitoring of the quantities of antimicrobials used in animal husbandry, provides the methodology required to assess the amounts of antimicrobials used, to supply data to be used for risk analysis and to improve guidance on the appropriate use of antimicrobials. Information may be gathered from a number of sources, suc...
There are a number of requirements by which animals should be managed so that the best performance is achieved in a way acceptable to those responsible for the care of the animals and to the community generally. These requirements are the keys to good management and may be used to test the management of a poultry enterprise in relation to the standard of its management. These requirements are a...
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