Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The T4/T3 ratio in the carcass and the blood of climax tadpoles
| T4/T3 ratio | T4, nM | T3, nM | |
|---|---|---|---|
| Carcass | 1.2 ± 0.5 | 6.0 ± 2.3 | 5.0 ± 1.0 |
| Blood | 5.5 ± 2.9 | — | — |
Six NF-stage 62/63 tadpoles were bled individually by cardiac puncture. The collected blood was divided in half for T4 and T3 RIA measurements. Their carcasses were assayed for the same hormones. Values are mean ± standard deviation. The differences between the ratios is significant (P < 0.004) by Student's t test.
