摘要:
The antibiotic of the formula: ##STR1## wherein R is ##STR2## The antibiotic is useful for the treatment of swine dysentery and for promoting growth and/or increasing the efficiency of food utilization in poultry, swine and ruminants.
摘要:
A new glycopeptide antibiotic UK-68,597 can be prepared by submerged aerobic propagation in aqueous nutrient media of Actinoplanes sp. ATCC 53533. The antibiotic and its cationic salts are active against a variety of microorganisms and are effective in controlling coccidiosis, enteritis, swine dysentery and theileriosis as well as being effective in promotion of growth and/or improving efficiency of feed utilization in poultry, swine and ruminants.
摘要:
A new glycopeptide antibiotic UK-68,597 can be prepared by submerged aerobic propagation in aqueous nutrient media of Actinoplanes sp. ATCC 53533. The antibiotic and its cationic salts are active against a variety of microorganisms and are effective in controlling coccidiosis, enteritis, swine dysentery and theileriosis as well as being effective in promotion of growth and/or improving efficiency of feed utilization in poultry, swine and ruminants.
摘要:
Antibiotic 19-epi-dianemycin, process for its preparation by fermenting a new strain of Streptomyces hygroscopicus, and isolation from the fermentation broth; and its use as an anticoccidial agent and antibacterial agent against gram-positive bacteria.
摘要:
A new acidic polycyclic ether antibiotic UK-58,852 has the formula: ##STR1## wherein R and R.sup.1 are both hydrogen, and can be prepared by the submerged aerobic propagation in aqueous nutrient media of Actinomadura sp. ATCC 39697. The antibiotic and its cationic salts are active against a variety of microorganisms and are effective in controlling coccidiosis, enteritis, swine dysentery and theileriosis as well as being effective in promotion of growth and/or improving efficiency of feed utilization is swine and ruminants. Two minor components, where R is H and R.sup.1 is CH.sub.3 and wherein R and R.sup.1 are both CH.sub.3, have also been isolated from the fermentation.
摘要:
A new acidic polycyclic ether antibiotic UK-58,852 has the formula: ##STR1## wherein R and R.sup.1 are both hydrogen, and can be prepared by the submerged aerobic propagation in aqueous nutrient media of Actinomadura sp. ATCC 39697. The antibiotic and its cationic salts are active against a variety of microorganisms and are effective in controlling coccidiosis, enteritis, swine dysentery and theileriosis as well as being effective in promotion of growth and/or improving efficiency of feed utilization in swine and ruminants. Two minor components, wherein R is H and R.sup.1 is CH.sub.3 and wherein R and R.sup.1 are both CH.sub.3, have also been isolated from the fermentation.
摘要:
A new acidic polycyclic ether antibiotic UK-58,852 has the formula: ##STR1## wherein R and R.sup.1 are both hydrogen, and can be prepared by the submerged aerobic propagation in aqueous nutrient media of Actinomadura sp. ATCC 39697. The antibiotic and its cationic salts are active against a variety of microorganisms and are effective in controlling coccidiosis, enteritis, swine dysentery and theileriosis as well as being effective in promotion of growth and/or improving efficiency of feed utilization in swine and ruminants. Two minor components, wherein R is H and R.sup.1 is CH.sub.3 and wherein R and R.sup.1 are both CH.sub.3, have also been isolated from the fermentation.
摘要:
N-demethylefrotomycin, a valuable new antibiotic substance, is produced by the microbial conversion of mocimycin using a novel, efrotomycin-producing, microbial species ATCC 53758.
摘要:
An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography, is formed by fermentation of a novel microorganism, Actinomadura sp. ATCC 53676. This novel antibiotic is useful as an anticoccidial in chickens and as a growth promotant in cattle and swine.
摘要:
The present invention relates to certain antibiotic compounds, designated N787-182 compounds herein and derivatives thereof, which are antiparasitic agents, active against insect pest, acari, free-living nematodes and endo- and ectoparasites. This invention also relates to pharmaceutical and other compositions comprising such compounds, methods of using such compounds, the microorganism Streptomyces hygroscopicus ATCC 53718 and mutants or genetically transformed or recombinant form thereof, and processes for producing such compounds.