Age-related changes in body length and esophageal parameters in Pharaoh quails in an experiment

Abstract

When growing birds, instead of antibiotics, the use of biologically active drugs is increasing, which help to increase the resistance of the bird's body, their safety and increase the growth and development rates of young animals. The purpose of the research: to find out the effect of the probiotic drug "Vetom 1.2" and the multivitamin complex "Chiktonik" on the growth rate of quails of the Pharaoh breed and their safety, age dynamics of esophagus development. The experiment lasted 50 days, during which the first group of birds received the main diet (control), the experimental groups in addition to the main diet supplements of biologically active substances: the second - probiotic "Vetom 1.2", the third - a combination of probiotic "Vetom 1.2" and multivitamin complex "Chiktonik". The linear parameters of the quail body varied throughout the experiment in all groups, but the most stable indicators were recorded in quails that received the probiotic "Vetom 1.2" as a supplement to the main diet in combination with the vitamin-amino acid preparation "Chiktonik", while in individuals from the other two groups, abrupt changes in the growth rate were noted. In each decade of the experiment, the prevalence of morphometric parameters of the esophagus in birds of the experimental groups was recorded compared to the control, which indicates a positive effect of the additives on the development of the digestive system in birds, especially in the second experimental group. The survival rate of quails during the first week of life was 84.00%. Moreover, the highest survival rate of birds was also recorded in the second experimental group, which received the probiotic in combination with the multivitamin complex as a supplement to the main diet.