In February 2022, the Institute of Experimental Veterinary Medicine conducted a study of the harmlessness and effectiveness of the use of the drug “Rezovet” on broiler chickens.

Treatment of diseases and mechanism of the drug

  • The drug is used to treat poultry with bacterial infections of hemophilosis, colibacillosis, mycoplasmosis, pasteurellosis, necrotic enteritis, pullorosis, salmonellosis.
  • The mechanism of action of the substances included in the composition of the drug is to inhibit the biosynthesis of macromolecules in the bacterial cell, inhibiting the processes of respiration and proliferation. Inhibition of metabolic and proliferative activity is accompanied by a decrease in the virulence and pathogenicity of bacteria. Additional components provide inactivation of pathogenic bacteria and their rapid elimination from the intestine.
  • The drug does not belong to the class of antibiotics.


  • The drug is used through the system of auto-watering with water for watering.
  • The use of the drug does not exclude the use of other antimicrobial drugs.
  • The drug in terms of the degree of effect on the body refers to low-hazardous substances and does not have an irritating effect on the tissues.
  • Slaughter of poultry for meat and the use of eggs for food purposes is allowed without restrictions. 

Research Methods

  • To study the effectiveness of the use of the drug “Rezovet” on broiler chickens, 2 groups of chickens of daily age were formed. Chickens of the experimental group were given the drug “Rezovet”. The chickens of the control group were not subjected to any additional treatments and were controlled.
  • Throughout the experiment, swabs were taken from the cloaca.
  • At the daily age, the chickens of the experimental and control groups were immunized with a vaccine for the prevention of Newcastle bird disease to study the effect of the drug “Rezovet” on the body’s immune response after vaccination.
  • Before the start of vaccination and 21 days after vaccination, blood was taken to determine specific antibodies in the serum in the hemagglutination delay reaction.
  • The entire bird was clinically monitored.
  • The control weighing was carried out at the ages of 10, 16, 24, 30, 36 and 45 days.

Research results

  1. During the experiment, there was no negative effect of the drug “Rezovet” on the clinical status of broiler chickens of the experimental group: the bird remained alive, mobile, actively consumed feed and water, from which it follows that the tested drug is harmless to poultry in recommended doses.
  2. During the experiment, no cases of the disease were detected in vaccinated birds of both groups.
  3. Rezovet is harmless to poultry and does not adversely affect the productivity, safety, and viability of broiler chickens with prolonged use.
  4. The use of the drug “Rezovet” does not have a negative effect on the production of post-vaccination antibodies against Newcastle disease.
  5. The use of the drug “Rezovet” contributes to an increase in the body weight of broiler chickens by 4.7% -13.5% compared with control.