Open AccessFeatures of growth, development and main indicators of bloodin chickens of Hubbard Redbro M dual-line cross
Author(s) -
V S Pashtetskiy,
Pavel Ostapchuk,
О. Н. Постникова,
V. P. Korotkiy,
T.A. Kuevda,
A. V. Pashtetskaya
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/422/1/012071
Subject(s) - dilution , chemistry , zoology , biology , physics , thermodynamics
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.