نتایج جستجو برای: ruminant livestock
تعداد نتایج: 25933 فیلتر نتایج به سال:
Soybean stubble is a potentially significant residue of a crop that has attained prominence as an important cash crop, high value food crop, and also as a soil ameliorative. Soybean culture in Australia is a fledgeling yet emerging industry with crop area totalling 68,000 ha in the 1983/84 season with some 80 percent of the crop grown in subtropical regions (Desborough et al. 1984). The potenti...
Cervical region lymph nodes collected by hunters from 43 wild hunter-harvested elk (Cervus elaphus) in Utah were submitted to the Utah Veterinary Diagnostic Laboratory during fall 2009. We evaluated these lymph nodes as specimens for identifi cation of bacterial pathogens using 16S rRNA genetic sequencing. Thirty-seven bacterial species were identifi ed; each was found in 2 to 30 individual elk...
Reports of drug resistance have been made in every livestock host and to every anthelmintic class. In some regions of world, the extremely high prevalence of multi-drug resistance (MDR) in nematodes of sheep and goats threatens the viability of small-ruminant industries. Resistance in nematodes of horses and cattle has not yet reached the levels seen in small ruminants, but evidence suggests th...
Because of an increasing demand for animal-source foods, an increasing desire to reduce poverty and an increasing need to reduce the environmental impact of livestock production, tropical farming systems with livestock must increase their productivity. An important share of the global human and livestock populations are found within smallholder mixed-crop-livestock systems, which should, theref...
Crop-livestock production systems are the largest cause of human alteration of the global nitrogen (N) and phosphorus (P) cycles. Our comprehensive spatially explicit inventory of N and P budgets in livestock and crop production systems shows that in the beginning of the 20th century, nutrient budgets were either balanced or surpluses were small; between 1900 and 1950, global soil N surplus alm...
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