No. Our horse serum is collected from a controlled herd. Should one of the animals require treatment with an antibiotic, that animal is removed from the drawing program for the full witholding period of any drug administered.
Will improper storage of my tissue culture reagents affect the growth rate of my culture?
Yes. Store animal sera at -5 to -20 degrees C. Store media at 2 to 8 degrees C; use within recommended shelf life period. Store complete media (supplemented) at 2 to 8 degrees C, and for complete medium the recommended shelf life is 2 to 4 weeks. Additionally, minimize exposure of sera and media to light.