experimental group exceeded the similar indicator of poultry of the first control group
by 15,7%, and in the second experimental group – by 18,7%, compared with the
indicator of the second control group.
Table 2 Indicators of the average daily gain of a live weight of broiler chickens
when using tilotsiklinvet, М±m; n=12
Poultry groups
Day
Live weight, g
The average daily gain, g
Second experimental
group (tilotsiklinvet)
1
45.2±0.7
7
186.0±5.6*
23.5
14
474.7±8.1*
41.2
28
1477.0±24.9**
71.6
38
2379.5±28.5**
90.2
42
2623.0±35.4**
60.9
Second control group
1
44.3±0.5
7
163.0±4.8
19.8
14
441.7±8.4
39.8
28
1298.0±28.9
61.2
38
2159.3±37.2
86.1
42
2343.8±46.0
46.1
Note: * р≤0,001, ** р≤0,01, compared to the control
References: is calculated by authors according to the data [12]
Having analyzed the results obtained during the first week of the experiment, we
conclude that the use of antibiotics influences on the growth of a live weight of broiler
chickens positively. It is known that tylozine improves metabolic processes and the
functioning of the gastrointestinal tract. During this period, antibiotics are usually used
during the rearing of young birds in order to increase their survival when chickens
begin to come into contact with the environment: with microorganisms, air, fodders,
water, etc.
On the 14th day of the experiment, we re-weighed broiler chickens and the live
weight of in the first experimental group was by 8,1% higher than the bird's body
weight of the first control group, while in the second experimental group the body
weight of the bird was by 7,4% higher than that of the second control group. It should
be noted that the increase in body weight of broiler chickens in experimental groups,
where pharmazin and tilotsiklinvet were used, was significantly higher than that of
control groups (p≤0,05). The average daily gain of broiler chickens of the first
experimental group exceeded the index of the first control group by 6,2%, while the
growth of the chickens of the second experimental group was by 3,5% higher than that
of the second control group.
The data obtained during the 14 days of the experiment show that the use of
antibacterial substances affects the growth of live weight of broiler chickens positively
(Fig. 1).
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