نتایج جستجو برای: intensive husbandry
تعداد نتایج: 135687 فیلتر نتایج به سال:
Porcine production in China represents approximately the 50% of the worldwide pig production. Information about pig husbandry characteristics in China and manure properties from sows to fatteners in intensive pig farms are not broadly available for scientific studies as it is a time consuming, expensive task and highly inaccessible. This study provides a report about solid pig manures (28% dry ...
Intensive husbandry of ducks is currently creating problems with regard to the welfare of these birds. The improvement of hygiene conditions and rationalisation of husbandry have created a poor and restrictive environment, leading to the appearance of abnormal behaviour patterns, such as certain types of pecking. Solutions are proposed. Many factors are involved and vast fields remain open for ...
After a brief review of the legal framework of animal protection applicable to cattle--including Council of Europe and European Union legislation, as well as French law--the main features of husbandry systems used in the intensive husbandry of veal calves and young cattle are analysed. For veal calves, the standards proposed at the European level do not take into account major differences in th...
Industralized cattle production is presently the subject of great changes, which in some respects have great detrimental impact on the animals. Modern intensive production systems often disregard the animals’ behavioural needs, causing unnecessary stress and disease. In the light of Swedish cattle husbandry standards, housing, management, feeding, transport and slaughter practices, and animal w...
The number of breeds of domesticated animals, especially livestock, have declined rapidly. The proximate causes and processes involved in loss of breeds are outlined. Also the path-dependent effect and Swanson’s dominance-effect are discussed in relation to lock-in of breed selection. While these effects help to explain genetic erosion, they need to be supplemented to provide further explanatio...
Stress is a recognised problem in intensive pig husbandry, which might lead to changes in immune reactivity. To study the effect of stress on the development of an anti-viral immune response, we used a murine model in which mice were immunized with an attenuated strain of pseudorabies virus (PRV). The effect of two stress treatments, both relevant to intensive pig husbandry, on the development ...
The main impetus for 'modern' intensive animal production occurred after the Second World War, when Western governments developed policies to increase the availability of cheap, safe food for their populations. Livestock benefit under intensive husbandry by protection from environmental extremes and predators, and better nutritional and health management. Nevertheless, there are costs to the an...
BACKGROUND Ethiopia has the largest cattle population in Africa. The vast majority of the national herd is of indigenous zebu cattle maintained in rural areas under extensive husbandry systems. However, in response to the increasing demand for milk products and the Ethiopian government's efforts to improve productivity in the livestock sector, recent years have seen increased intensive husbandr...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید