| Autor: |
L. W. McCuaig, I. Motzok |
| Rok vydání: |
1973 |
| Předmět: |
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| Zdroj: |
Poultry Science. 52:1896-1902 |
| ISSN: |
0032-5791 |
| DOI: |
10.3382/ps.0521896 |
| Popis: |
Three experiments were performed in the course of developing a suitable design to study the mineral-phosphatase interaction in the young chick. Commercial and semi-purified diets of varying Ca and P content were utilized in attempts to alter the intestinal alkaline phosphatase (AP) activity. Excess Ca (2.5%) in a commercial chick starter ration caused an initial decrease in AP (after 1 to 3 days) and an elevation of the enzyme (at 10 days) compared to control (1.0% Ca). On day 10 the enzyme was positively correlated with intestinal and plasma Ca and inversely correlated with plasma Zn. A low P semi-purified diet did not alter intestinal AP compared to the same diet containing adequate P (during 6 days). There appears to be developmental alterations in the mineral-phosphatase relationships during the first two weeks of life in the chick. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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