Insulin-like growth factor I during growth in bulls.
- 1989-01-01
Published in:
- Reproduction, nutrition, developpement. - 1989
English
In 10 bulls, changes in blood plasma concentrations of insulin-like growth factor I (IGF1) were studied during rearing and during the ensuing growth period. IGF1 continuously increased from 32 micrograms/l at the age of 15 d to 194 micrograms/l at the age of 307 d together with body weight. However, IGF1 was not related to daily rate of gain, which remained fairly constant during the growth period. An age-dependent increase was also observed for blood levels of insulin, thyroxine and triiodothyronine. The data suggest that insulin and thyroid hormones may be causally related to the age-dependent increase in IGF1 levels.
- Language
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- English
- Open access status
- bronze
- Identifiers
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- DOI 10.1051/rnd:19890109
- PMID 2928598
- Persistent URL
- https://sonar.ch/global/documents/249224
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