The present study was undertaken to assess the therapeutic efficacy of oral Nitaxoxanide and Sulphadimidine treatment against Cryptosporidium infection in bovine calves reared under field conditions. A total of 18 diarrhoeic calves naturally infected with Cryptosporidium infection were evaluated. Nitazoxanide was found to be very effective on the basis of disappearance of clinical signs, restor...

Riparian areas are critical interfaces between aquatic and terrestrial ecosystems. Protecting and enhancing them by implementing streamside management zones (SMZs) is an essential practice of sustainable forestry. SMZs provide ecological functions including protection against non-point source pollution, promotion of water infiltration, contribution of beneficial nutrients and coarse woody debri...

As constantes de dissociação de sete sulfonamidas antibióticas, sulfadiazina, sulfatiazol, sulfamerazina, sulfametazina, sulfamonometoxina, sulfadoxina e sulfametoxazol, foram determinadas em diferentes misturas binárias acetonitrila-água (15, 30, 40, 50% (v/v)) usando cromatografia líquida de fase reversa. Um método usando espectros de absorbância no máximo dos picos cromatográficos previament...

Three test-plot series have been performed to gather information on runoff of sulfonamides from manured arable and grassland after sprinkler irrigation. To prepare test slurries with defined aged residues, liquid bovine manure was fortified with sulfadiazine, sulfadimidine, and sulfamethoxazole and stored short-term. After test-slurry application, the arable land was treated by soil cultivation...

The theme of this article is to establish a basis for a physical model of optimization the kinetics of the process caustification (firing). In developing the mathematical model were used available data on the subject. The experimental part was carried out in order to find the optimal state of firing caustic magnesite at a given temperature and its reactivity to fast speed rotary kiln (FSRK) and...

A wireless magnetoelastic sensor has been developed for the determination of 2-naphthol (2-NAP) in human urine. This method is based on the precipitation of 2-NAP with diazonium salts produced by the diazo-reaction of sulfamethoxazole (SMZ) with nitrite under a weak alkaline condition, resulting in a descending of the resonance frequency of a wireless magnetoelastic sensor. The frequence shift ...

In vitro susceptibility of 100 clinical isolates of Neisseria gonorrhoeae to trimethoprim-sulfamethoxazole (TMP-SMZ combination; 1:19) was determined by the agar dilution technique using three different media under similar conditions. On Oxoid diagnostic sensitivity test, Mueller-Hinton, and GC agar media, the percentage of isolates inhibited by 2.5 mug or less of TMP per ml and 47.5 mug or les...

Of 97 patients with genital ulcers attending a special treatment clinic in Nairobi, Kenya, 60 harboured Haemophilus ducreyi, four herpes simplex virus, and five Neisseria gonorrhoeae. Eleven patients had serological evidence of syphilis; of these one case was confirmed by darkfield microscopy. In the remaining cases no aetiological agent was identified. An enriched chocolate agar with vancomyci...

We have investigated the sorption potential of three sulfonamides (SAs) in six New Zealand dairy farming soils using a modified batch equilibrium method employing 0.005 M CaCl2 as background solution. Both liquid and solid phases were extracted to analyse for the antibiotic concentrations in order to avoid underestimation that may arise a result of photolysis or biotic degradation. The experime...

The increasing demands for environmental protection and sustainable food production require an increase in the use of natural and non-toxic materials for agriculture. In this study, the feasibility of using surfactant-modified zeolite (SMZ) in comparison with zeolite clinoptilolite (Cp) application to reduce nitrate leaching and enhance crop growth was investigated. The effects of size (millime...