The effect of dietary zinc level upon the efficiency of vitellogenin synthesis by male quail
<p>Manipulation of dietary zinc produced a different body zinc status in male Japanese quail during 3 weeks of treating period. After intramuscular injection with 8μmol/100g body weight of estradiol-17β, Japanese quail were sacrificed and vitellogenin (phosphoprotein) production was assessed...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | en |
| Published: |
Virginia Tech
2014
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10919/41475 http://scholar.lib.vt.edu/theses/available/etd-03122009-040742/ |
| Summary: | <p>Manipulation of dietary zinc produced a different body zinc
status in male Japanese quail during 3 weeks of treating period.
After intramuscular injection with 8μmol/100g body weight of
estradiol-17β, Japanese quail were sacrificed and vitellogenin
(phosphoprotein) production was assessed in these birds by
analyzing plasma for protein-bound phosphorus concentrations
(PBP). Plasma PBP concentrations of estrogen-injected male
quails increased from undetectable values for control birds to
O.66mg/ml for high-zinc birds and O.42mg/ml for low-zinc birds.
About 36% loss of vitellogenin synthesis was associated with the
consumption of the zinc-deficient diet. Plasma zinc
concentrations also increased on the estrogen injection because
of the zinc-binding property of vitellogenin. The extra zinc
ions in the plasma were considered to be come from the body zinc
pools. Liver as well as other major tissues was believed to act
as a reservoir of zinc for egg development but it was not
observed that liver was the major source of the extra zinc in the
plasma.</p> === Master of Science |
|---|