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Any of several antibacterial substances derived from an actinomycete related to Streptomyces virginiae, used chiefly as an additive in animal feed.

[New Latin virginiae, specific epithet (from genitive sing. of Virginia, Virginia) + -mycin.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets.
Effect of virginiamycin on ruminal fermentation in cattle during adaptation to a high concentrate diet and during an induced acidosis.
In the USA, pigs are exposed to bacitracin, pleuromutilins, quinoxalines, flavophospholipol and virginiamycin as growth promoters.
As a result of their report, we have determined to discontinue by March 1, 2019, the use of gentamicin and virginiamycin for prevention of disease in our live operations.
Henderickx(1979) Quantitative in vitro evaluation of the energy metabolism influenced by virginiamycin and spiramycin used as growth promoters in pig nutrition.
Protein-vitamin-mineral nucleus was prepared at Cooperativa Agraria (Guarapuava, Parana State, Brazil), formulated based on soybean meal, wheat bran, malt radicle, calcitic limestone, dicalcium phosphate, salt, mineral vitamin premix, monensin and virginiamycin, presented in pelleted form.
Borup-Grochtman, "Biosynthesis of antibiotics of the virginiamycin family.
In Sri Lanka, use of sub-therapeutic concentrations of antimicrobials is well regulated and only the following are allowed for use: bacitracin, virginiamycin, flavomycin and avilamycin.
Historical examples of this cause-effect relationship include the following: the application of avoparcin in poultry and swine production and the emergence of glycopeptide-resistant enterococci [127], the use of virginiamycin in the same species and the development of quinupristin-dalfopristin resistance [128], and the usage of tylosin with the concomitant dissemination of erythromycin-resistant bacteria in Scandinavian countries [129], to cite just a few examples.
The direct fed microbial (Bacillus amyloliquefaciens) derived from and the basal diet comprising of antibiotic growth promoter (virginiamycin) were supplemented in the feed of poultry flocks.
For example, avoparcin and virginiamycin, considered 'animal-only' antibiotics, could select strains resistant to drugs recently approved for humans." Id.