نتایج جستجو برای: livestock pressure
تعداد نتایج: 429290 فیلتر نتایج به سال:
background: infectivity of herbivores with trichostrongylus nematodes is widespread in many countries, having a major economic impact on breeding, survivability, and productivity of domestic livestock. this study was carried out on trichostrongylus species isolated from domestic livestock in order to develop an easy-to-perform method for species identification. methods: trichostrongylus isolate...
In recent, domestic livestock farms are receiving enormous damages through various livestock diseases that are highly contagious such as foot-and-mouth disease and avian influenza (AI). Additionally, they are experiencing difficulties also financially as a result of decrease in income from production cost increase. This paper will propose a livestock disease forecasting system for diagnosing in...
An increasing proportion of the world's poor is rearing livestock today, and the global livestock population is growing. Livestock predation by large carnivores and their retaliatory killing is becoming an economic and conservation concern. A common recommendation for carnivore conservation and for reducing predation on livestock is to increase wild prey populations based on the assumption that...
بررسی تاثیر دو مانور ثبات دهنده شکمی (گود کردن و سفت کردن شکم) با استفاده از pressure biofeedback روی میزان فعالیت بدست آمده از سیگنال الکترومیوگرافی عضلات اکستانسور ناحیه کمری ـ لگنی در حین انجام اکستنشن هیپ در وضعیت دمر در زنان سالم و مبتلا به کمردرد مزمن غیر اختصاصی.
The effects of livestock grazing on selected riparian and stream attributes, water chemistry, and algal biomass were investigated over a two-year period using livestock enclosures and by completing stream surveys in the Cypress Hills grassland plateau, Alberta, Canada. Livestock enclosure experiments, partially replicated in three streams, comprised four treatments: (1) early season livestock g...
OBJECTIVE To investigate the association between livestock ownership and dietary diversity, animal-source food consumption, height-for-age z-score, and stunting among children living in wildlife "buffer zones" of Zambia's Luangwa Valley using a novel livestock typology approach. METHODS We conducted a cross-sectional study of 838 children aged 6-36 months. Households were categorized into typ...
Global food security will require the production of more food using resources including land more efficiently, and with less waste. This goal must be achieved within the context of climate change and while ensuring minimal adverse environmental impact from both crop and livestock production. Disease, especially infectious disease, is a main constraint of biologically efficient livestock product...
This paper examines the vulnerabilities of major livestock species raised in Australia to climate change using the regional livestock profile of Australia of around 1,400 regions. The number of each species owned, the number of each species sold, and the aggregate livestock revenue across all species are examined. The four major species analyzed are sheep, beef cattle, dairy cattle, and pigs. T...
The widespread replacement of wild ungulate herbivores by domestic livestock in African savannas is composed of two interrelated phenomena: (1) loss or reduction in numbers of individual wildlife species or guilds and (2) addition of livestock to the system. Each can have important implications for plant community dynamics. Yet very few studies have experimentally addressed the individual, comb...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید