نتایج جستجو برای: excreta
تعداد نتایج: 1442 فیلتر نتایج به سال:
We evaluated 14 samples of bird excreta from pigeons, parrots, open billed storks and crows obtained from thirteen places in Bangkok and nearby areas between April and July 2004. These bird excreta were examined for Cryptococcus neoformans by direct plating method to inspect their ability to grow at 37oC. Capsule production was examined by Indian ink preparation. They were also tested for ureas...
The risk to human health of the annual sandhill crane (Grus canadensis) migration through Nebraska, which is thought to be a major source of fecal pollution of the central Platte River, is unknown. To better understand potential risks, the presence of Campylobacter species and three fecal indicator bacterial groups (Enterococcus spp., Escherichia coli, and Bacteroidetes) was assayed by PCR from...
Although human excreta as a NH3 source has been recognized globally, this source has never been quantitatively determined in cities, hampering efforts to fully assess the causes of urban air pollution. In the present study, the exhausts of 15 ceiling ducts from collecting septic tanks in 13 buildings with 6 function types were selected to quantify NH3 emission rates in the megacity of Shanghai....
Anthropogenic pollution results in high concentrations of heavy metals in the environment. Due to their persistence and a high potential for bioaccumulation, metals are a real threat for birds breeding in industrial areas. The aim of the present study has been to explore the contents of heavy metals (arsenic As, cadmium Cd, chromium Cr, copper Cu, iron Fe, nickel Ni, lead Pb and zinc Zn) in the...
Rivaroxaban is a novel, oral, direct factor Xa inhibitor for the prevention and treatment of thromboembolic disorders. The objective of this study was to investigate the in vivo metabolism and excretion of rivaroxaban in rats, dogs, and humans. Single doses of [(14)C]rivaroxaban (3 and 1 mg/kg) were administered to rats (orally/intravenously) and dogs (orally), respectively. A single oral dose ...
Rare earth elements (REE) and some transition metals (e.g. Nb) are a group of chemicals that have recently been widely used in industrial processes due to the increasing demand for new technologies. As result, these increasingly being released into environment, which could mean pollutants modify marine terrestrial ecosystems. Seabirds, such as penguins, can biotransport nutrients from sea land ...
This study was conducted to determine chemical composition and evaluated apparent metabolisable energy (AME) and true metabolisable energy (TME) values of five Iranian barley cultivars. Basal diet contained corn soybean and in each of the test diets barley was substituted for 30% of corn and soybean fractions. The study was carried out in 3 experiments. In experiment 1, metabolisable energy (ME...
This study was conducted to investigate the metabolizable Nutrient values of Tomato Pomace (TP) in Nile tilapia (Oreochromis niloticus). Ninety days (three month) old fish were divided into 2 groups, each group consists from 12 aquariums, and each aquarium contains 12 Nile tilapia fingerlings whereas the excreta could be collected. Fish in each group were randomly fed basal diet or basal diet m...
Studies on the fate of type 1 polioviruses in two common species of flies were carried out. The amount of virus in carcasses and excreta at different times was determined by the plaque assay method. Flies and their excreta remained infective for 11 days when kept at room temperature or when incubated at 36 degrees C. for 2 hours a day. Flies remained infective for 3 months when kept in hibernat...
In 12 experiments with S.C.W.L. roosters it was shown that for each of 12 feedingstuffs there was a linear relationship between feed input and the amount of energy voided as excreta. In the 24 h. period, following 21 hr. of starvation, roosters receiving no feed excreted 4.07 kcal./kg. of body weight. When dextrose was fed the energy voided as excreta did not increase with dextrose input; conse...
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