Efficacy prediction of four pharmaceutical formulations for intramammary administration containing Aloe vera (L.) Burm. f. combined with ceftiofur or cloxacillin in lactating cows as an alternative therapy to treat mastitis caused by staphylococcus aureus 

Antimicrobial use in companion animals: assessing veterinarians' prescription patterns through the first national survey in Chile 

Assessing antibiotic residues in poultry eggs from backyard production systems in Chile, first approach to a non-addressed issue in farm animals 

Evaluation of antibiotic dissemination into the environment and untreated animals, by analysis of oxytetracycline in poultry droppings and litter 

Detection of antimicrobial residues in poultry litter: monitoring a risk through a selective and sensitive HPLC-MS/MS method