Transfer of tritium into laying hen's meat and eggs at prolonged intake with atmospheric air, water and grass meal

摘要

Following a continuous intake of tritium (T) by laying hens' over a 55 day period, an increase of HTO concentration both in eggs and meat was observed over the first 2 weeks for intakes via inhalation and ingestion of water and grass meal. After this time, equilibrium of the Tin these products occurred. It was found that when the intake of HTO is from water, air and grass meal, the ratio of its activity concentration in muscular tissue to that in eggs does not exceed 1, 4, and 6 respectively. The ratio of OBT concentration to that of HTO in the meat of hens (OBT/HTO) when intakes were from water, air and grass meal were 0.08, 0.09 and 0.7, respectively. (C) 2017 Elsevier Ltd. All rights reserved.