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 55080. This novel antibiotic is useful as an anticoccidial in poultry, in the prevention and treatment of swine dysentery and as a growth promotant in cattle and swine.
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 53764. This novel antibiotic is useful as an anticoccidial in chickens, in the prevention or treatment of swine dysentery, and as a growth promotant in cattle and swine.
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:
An antibiotic has been isolated from fermentation of a new Streptomyces culture. The new ionophore is active as an antibacterial and anticoccidial agent.
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, CP-63,517, having the formula: ##STR1## and cationic salts thereof produced by submerged aerobic propagation of Streptomyces endus subsp. aureus, ATCC-39574, a new strain of microorganism isolated from a soil sample in Japan, a process for producing this antibiotic and methods for its use to improve feed utilization, promote growth of cattle and swine and to control coccidiosis.
摘要:
An antibiotic complex, consisting of one major and two minor components, has been isolated from fermentation of a new Streptomyces culture. The components from the complex are three new macrolides which are active as antibacterial agents against certain gram-negative and gram-positive microorganisms.
摘要:
An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography, is formed by fermentation of a novel microorganism, Streptomyces sp. ATCC 55028. This novel antibiotic is useful as an anticoccidial in chickens, in the prevention or treatment of swine dysentery, as a growth promotant in cattle and swine, and as an anthelmintic in mammals, particularly in dogs, cats, sheep, cattle and swine.
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 53764. This novel antibiotic is useful as an anticoccidial in chickens, in the prevention or treatment of swine dysentery, and as a growth promotant in cattle and swine.
摘要:
An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography, is formed by fermentation of a novel microorganism, Streptomyces hygroscopicus ATCC 53626. This novel antibiotic is useful as an anticoccidial in chickens and as a growth promotant in cattle and swine.