AFCF and clinoptilolite use in reduction of Cs-137 deposition in several days' contaminated broiler chicks
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The objective of this study was to investigate the binding efficiency of AFCF and clinoptilolite, mixed to the feed and administered orally using gastric tube to chronically Cs-137 alimentary contaminated broiler chicks. Seventy-five male Hybro broiler chicks, between 35 and 47 days of age were divided into five groups (15 birds per group) reared in cages (five birds in a cage) and fed a standard diet. Every day during 13 days of the experimental period all chicks received orally 1 ml CsCl water solution with activity of 13 10 Bq ml(-1) Cs-137 (gastric tube). Group I was the control group and received no binders. The experimental groups received the binders. Group 2 received 0.2 g of AFCF in the form of water solution (gastric tube); group 3 received 0.2% AFCF in the feed; group 4 received 2 g clinoptilolite in the form of water suspension (gastric tube) and group 5 received 2% clinoptilolite in the feed. Five chicks from each group were sacrificed on days 4, 10 and 13 of the experimen...tal period. Using gamma spectrometric methods specific activity of Cs-137 was determined in the samples of breast meat, liver and gizzard. The results obtained showed that administering binders to the chronically contaminated broiler chicks significantly (p < 0.01) reduced Cs-137 transfer and deposition in breast meat, liver and gizzard. Decreasing deposition of Cs-137 in breast meat and internal organs increased with time of contamination and binders administration. With AFCF as a cesium binder, on day 13 of measuring the Cs-137 activity in breast meat was 80-83% lower than that in the control group, 89% in liver and 83-84% in gizzard. Natural clinoptilolite activity in breast meat tilolite demonstrated lower binding efficiency. On day 13 of measuring the 137 was 53-69% lower than that in the control group, 67-60% in liver and 59-71% in gizzard.
Keywords:(CS)-C-137 / binding / AFCF / clinoptilolite / broilers / meat / organs
Source:Journal of Environmental Radioactivity, 2007, 95, 2-3, 171-177
- Elsevier Sci Ltd, Oxford