Effect of estradiol-17 beta on follicle-stimulating hormone secretion and egg-laying performance of Japanese quail

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dc.contributor.authorCiftci, H. B.
dc.date.accessioned2020-03-26T18:24:59Z
dc.date.available2020-03-26T18:24:59Z
dc.date.issued2012
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe aim of this study was to measure the effect of estradiol-17 beta (E-2) injection on follicle-stimulating hormone (FSH) secretion and egg-laying performance of Japanese quail. Female Japanese quail were housed in cages and fed ad libitum. After a 7-day adaptation period, the birds were randomly assigned to three groups, that is, one control group and two test groups. The birds were weighed, before every injection. The control group was subcutaneously injected with 0.2 ml sesame oil-ethanol mixture, whereas test groups were injected, twice in a week, with 0.2 ml sesame oil-ethanol mixture containing 0.1 or 0.2 mg E-2 along the study. One day after the first injection, egg number, egg weight, eggshell strength and food conception were daily recorded. On the last day of the experiment, the birds were injected and 3 h later seven birds from each group were randomly selected for bleeding. Blood samples (2 ml/bird) were collected from the jugular vein for the measurements of serum concentrations of E-2, FSH, calcium (Ca) and phosphorus (P). E-2 injection did not cause any significant changes in serum FSH concentrations, daily egg laid/bird, food conception/bird, serum concentrations of the Ca and the P. Egg weight was significantly increased in the 0.1 mg E-2-injected group as compared with the control and 0.2 mg E-2-injected groups. Eggshell strength in the 0.2 mg E-2-injected group was significantly high as compared with the control, whereas the difference between the 0.1 mg E-2- and 0.2 mg E-2- injected groups was not statistically important. These results show that serum FSH concentration was not increased even when slightly suppressed by subcutaneous injection of 0.1 or 0.2 mg E-2. Different doses of E-2 have different functions. The increase in BWs in the 0.1 mg E-2-injected group was a result of the dose effect, which probably increased growth hormone secretion from the pituitary or IGF-1 synthesis from the liver or both. The dose, 0.2 mg E-2, was ineffective in increasing the BW, but it significantly increased eggshell strength probably via the increase in Ca and P utilizations.en_US
dc.identifier.doi10.1017/S1751731112000997en_US
dc.identifier.endpage1960en_US
dc.identifier.issn1751-7311en_US
dc.identifier.issue12en_US
dc.identifier.pmid23031602en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1955en_US
dc.identifier.urihttps://dx.doi.org/10.1017/S1751731112000997
dc.identifier.urihttps://hdl.handle.net/20.500.12395/27939
dc.identifier.volume6en_US
dc.identifier.wosWOS:000310314400008en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherCAMBRIDGE UNIV PRESSen_US
dc.relation.ispartofANIMALen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjecteggen_US
dc.subjectfollicleen_US
dc.subjectestradiolen_US
dc.subjectquailen_US
dc.titleEffect of estradiol-17 beta on follicle-stimulating hormone secretion and egg-laying performance of Japanese quailen_US
dc.typeArticleen_US

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