Abstract
Serum levels of triiodothyronine and thyroxine were measured by radioimmunoassay to determine whether differences exist between double-muscled (DM) homozygous, DM heterozygous and non-DM cattle of beef and dairy origins. No differences in triiodothyronine concentrations were found between heterozygous and non-DM beef animals, but thyroxine concentrations in non-DM dairy cattle were significantly different from those in non-DM beef. Unexpectedly, hormone concentrations in DM homozygotes were lower than those in other genotypes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1437-1441 |
| Number of pages | 5 |
| Journal | Journal of animal science |
| Volume | 52 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 1981 |
| Externally published | Yes |
ASJC Scopus subject areas
- Food Science
- Animal Science and Zoology
- Genetics