Biotechnology in Animal Husbandry - Institut za Stočarstvo

Natural sepiolite efficiency ...
activity concentration (Bq/kg fresh weight) was determined and reduction of 137 Cs
deposition in the breast meat, liver and gizzard of broiler chicks was calculated in
relation to the group 1 (control) expressed in percents (decreasing percentage
relative to control).
The experimental data were subjected to the analysis of variance using the
STATISTICA for Windows Software (Stat Soft Inc. version 6). The significance of
differences between means was tested using Tuckey´s Honestly Significant Test.
Results and Discussion
After oral contamination, radiocesium be deposited in soft tissues. The
level of deposition in meat (breast and legs muscle), liver and gizzard of chickens,
after 24 hours of contamination is shown in Table 1.
Table 1. 137 Cs distribution and deposition into the meat, liver and gizzard of broiler chicken
Tissue/
organs
Meat
Liver
Gizzard
137
Cs activity (Bq/sample)
Group 1 Group 2
( 137 Cs) ( 137 Cs+sepiolite)
2090 ± 112 1660 ± 109 *
36 ± 6.1 32 ± 2.1
92 ± 8.7 81 ±7.7
Means ± Standard deviation;
* Statistically significance of differences (p < 0.05)
% of ingested 137 Cs activity
Group 1 Group 2
( 137 Cs) ( 137 Cs+sepiolite)
56.00 44.00
1.0 0.85
2.4 2.16
Obtained results showed that 56 % of introduced 137 Cs radioactivity was
deposited in the muscle, 1 % in the liver and 2,4 % in the gizzard (group 1, only
radiocesium ingested). In the case of oral simultaneous addition of sepiolite, 44 %
of introduced 137 Cs activity was deposited in the muscle, 0,85 % in the liver and
2,16 % in the gizzard.
The effects of the administration of sepiolite on the decreasing 137 Cs
deposition in the meat, liver and gizzard of contaminated broiler chicks were
presented in Table 2.
Table 2. 137 Cs activity concentration (Bq/kg) in broilers meat and edible organs
and efficiency of sepiolite in reduction of 137 Cs deposition (%)
Tissue/
organs
Meat
Liver
Gizzard
137
Cs activity concentration (Bq/kg)
Group 1 Group 2
( 137 Cs) ( 137 Cs+sepiolite)
2614 ± 150 2187 ± 141 *
939 ± 67 893 ± 55
2298 ± 161 2020 ± 174
Means ± Standard deviation;
*
Statistically significance of differences (p < 0.05)
Decreasing percentage
(%)
16
5
12
185