Features of growth, development and main indicators of bloodin chickens of Hubbard Redbro M dual-line cross

Abstract

The use of active carbon additive (ACA) in the diet of in chickens of Hubbard Redbro M dual-line cross and its effect on their growth and the main blood parameters is reflected in the article. Feeding ACA gives a significant increase in live weight (3.5 – 7.5 %) during the growth period. RBC and WBC in the experimental group are within the physiological norm. The index of serum bactericidal activity in relation to the S. aureus test-culture in serum dilution 1:10 is higher in experimental group. Starting with the phase of logarithmic growth of test culture after a three hour exposure in the dilution of 1:5 is approximately the same in both groups. Serum bactericidal activity in E. coli test-culture is higher in control samples than in experimental ones in serum dilution is 1:5 higher than in dilution of 1:10. The data obtained are confirmed by an indicator of the intensity of serum bactericidal activity: the difference between the experimental and control groups vary from 2.1 to 5.6 abs. %. There is a positive relationship between indicators of serum bactericidal activity on the background of the studied test-cultures. At the dilution of serum in chickens of control group 1:10 correlation of serum bactericidal activity with the index in the experimental group were not observed.

Use of phytobiotics in animal husbandry and poultry

“…The effect of using essential oils contained in the products of coniferous plants processing in poultry farming is noted: cross chickens gives a significant increase in live weight (3.5 -7.5 %) during the growth period in our research [27] ( fig. 1).…”

“…In most cases, the study of the combination of essential oils of Eucalyptus camaldulensis with conventional antibiotics (gentamicin, ciprofloxacin and polymyxin B) showed a synergistic antibacterial effect even in some re-sensitized strains of A. baumannii with multiple drug resistance (MDR). The synergistic effect was obtained by combining the essential oil with antibiotics, for example, aminoglycosides, tetracyclines, fluoroquinolone, which can serve as the basis for the development of a new therapy against drug-resistant bacteria [26][27][28][29][30].…”