Physical and chemical composition of the chicken letter when using docycycline in therapeutic doses

Authors

  • Yu. Dobrozhan Junior Researcher Fellow State scientific research institute of laboratory diagnostics and veterinary-sanitary expertise , молодший науковий співробітник Державний науково-дослідний інститут з лабораторної діагностики та ветеринарно-санітарної експертизи (м.Київ)
  • L. Shevchenko Doctor of Veterinary Sciences, Professor National University of Life and Environmental Sciences of Ukraine , доктор ветеринарних наук, професор, Національний університет біоресурсів і природокористування України

Keywords:

litter, chickens, doxycycline, ash, moisture, fiber, fat, dry matter, protein, total nitrogen

Abstract

In the course of the experiment, the basic
physical and chemical parameters of the hens' laying
hens, industrial herds of the “High-Line” cross-section,
age 35 weeks, against the background of the use of
the chickens of the drug "Doxycyсline 20%" were
determined. The antimicrobial drug was diluted
in accordance with the recommendations of the
manufacturer in therapeutic doses for 7 days. It was
established experimentally that when doxycycline is
used, minor changes in the physicochemical parameters
of the chicken’s litter occur, which are normalized on
10 days after the start of antibiotic use. The greatest
changes were found in the levels of protein and total
nitrogen in the litter of the research group chicken the
concentration of which increased by 1.8% and 0.29%,
respectively, compared with that of the control group,
which probably reflects the effect of doxycycline on
the microbiocenosis of the poultry digestive tract and
changes in nutrient absorption. The same factor explains
the fluctuations and other physicochemical indicators
of the chickens litter in comparison between the two
groups – the research group, which received doxycycline
in therapeutic doses and the control group, which was
kept in analogous conditions, but without feeding
antibiotic.

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Published

2019-03-14

Issue

No. 3-4 (2019)

Section

Hygiene and Sanitation

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