On the occurrence of strontium in the egg after feeding to hens. I. Deposition in the yolk
One-yr-old White Leghorn hens were fed for 180 days a diet containing 2 meq SrCO3 per 100 g dry wt. The Sr: Ca ratio of the diet was st run. Concent 1: 22. The yolks of eggs laid subsequently were ashed and their Sr and Ca content determined. Sr first appeared in the yolks on the 4th day after Sr was fed, at a level of 0.09% of the ash. Sr content of the yolks then rose sharply and in 2 to 3 weeks reached an average value of 0.5% of the ashed yolk, compared with an average Ca level of 7.5%. When SrCO3 was discontinued from the diet, the yolk ash Sr content fell to 0.2% 27 days later and to 0.06% 186 days later. No Sr was detectable in the yolks 427 days later, and the Ca content at this time was st run. Concent 7.6%. The maximum Sr: Ca ratio reached during Sr feeding was 1: 15. The Sr content of the bones of hens fed Sr for 47 days was 0.33% of the ash for tibia and 0.37% for vertebra. The corresponding values after 180 days of Sr feeding were 0.50 and 0.58% and 427 days after removal of Sr from the diet were 0.14 and 0.16%.
- Research Organization:
- Universitat, Munich
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-021451
- OSTI ID:
- 4728131
- Journal Information:
- Zeitschrift fuer Ernaehrungswissenschaft, Journal Name: Zeitschrift fuer Ernaehrungswissenschaft Journal Issue: 1-2 Vol. 3; ISSN 0044-264X
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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