Amprolium
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Anticoccidial activity of hydrochloric acid (HCl) against Eimeria tenella in broiler chickens
The present study was planned to evaluate the anticoccidial activity of the different concentrations of the HCl against Eimeria tenella infection in broiler chickens in comparison with the amprolium anticoccidial. For this purpose, a total of 198 chicks were placed 11 per pen with three pens per treatment. The different concentrations of HCl (1000ppm, 2000pp
Pesquisa Veterinária Brasileira. Publicado em: 2011-05
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2. Anticoccidial effects of acetic acid on performance and pathogenic parameters in broiler chickens challenged with Eimeria tenella
The objective of the present study was to evaluate the anticoccidial effect of the different concentrations of the acetic acid in the broiler chickens in comparison with the amprolium anticoccidial. A total of 198 chicks were placed 11 per pen with three pens per treatment. The different concentrations (1%, 2% and 3%) of acetic acid and amproilum (at the dos
Pesquisa Veterinária Brasileira. Publicado em: 2011-02
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3. POLIOENCEFALOMALACIA EM RUMINANTES / POLIOENCEPHALOMALACIA IN RUMINANTS
In the first portion of this thesis, epidemiology, clinical signs and distribution of lesions in the brain of thirty one cases of polioencephalomalacia (PEM) in cattle from the Southern (13 cases) and Midwestern (18 cases) Brazil were studied. Morbidity (0.04%-6.66 %), mortality (0.04%-6.66 %), and lethality (50%-100%) rates were similar in both regions stud
Publicado em: 2010
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4. Amprolium and thiamine pyrophosphotransferase.
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5. Inhibition of thiamine transport across the blood-brain barrier in the rat by a chemical analogue of the vitamin.
The flux of thiamine from the blood into the brain has been measured using a specially devised technique by which a steady raised level of the vitamin, with or without radioactive labelling, can be achieved rapidly and maintained in the bloodstream. This is done by a continuous injection, given at a rate which is adjusted by a pre-determined programme so as
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6. Transport of thiamine by brush-border membrane vesicles from rat small intestine.
1. Microvillous vesicles obtained by a Ca2+ precipitation method from the intestine of adult Wistar albino rats were incubated at 25 degrees C with [35S]- or [3H]thiamine of high specific activity. 2. The time course of thiamine uptake was not influenced by the presence of Na+ or K+ nor by the absence of alkaline cations in the incubation medium. 3. At conce
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7. Comparison of the effects of some thiamine analogues upon thiamine transport across the blood-brain barrier of the rat.
The flux of thiamine from the blood into the brain has been measured by a specially devised procedure in which a steady raised level of the vitamin, with or without radioactive labelling, was achieved rapidly and maintained steadily in the circulating blood plasma. This was done by a single rapid I.V. injection followed by a continuous injection given at a r
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8. Toxoplasma gondii: susceptibility and development of resistance to anticoccidial drugs in vitro.
Anticoccidial drugs were evaluated for activity and for the development of resistance in a model of Toxoplasma gondii growing in human fibroblast cultures. Of 13 anticoccidial drugs tested, 9 had selective antitoxoplasma activity (50% inhibitory concentration, in micrograms per milliliter): decoquinate (0.005), arprinocid-N-oxide (0.015), robenidine (0.03),
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9. Thiamine outflow from the enterocyte: a study using basolateral membrane vesicles from rat small intestine.
1. Rat small intestinal basolateral membrane vesicles (BLMVs) were prepared and found to be 31% non-vesiculated and 69% vesiculated, 4.9% right side out and 63.8% inside out. 2. Thiamine uptake by BLMVs followed a hyperbolic time course reaching equilibrium after 60-90 min incubation. Uptake was not affected by the transmembrane potential or by the presence