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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Hormonal sex inversion in striped bass and white bass x striped bass hybrids
Year:
1999
Authors :
חולתא, גדעון
;
.
צ'רפס, נינה
;
.
Volume :
61
Co-Authors:
Gomelsky, B., Aquaculture Research Center, Kentucky State University, Frankfort, KY 40601, United States
Cherfas, N.B.
Gissis, A.
Hulata, G., Agricultural Research Organization, Institute of Animal Science, Department of Aquaculture, Post Office Box 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
199
To page:
205
(
Total pages:
7
)
Abstract:
The goal of the study was to determine the optimal androgen treatment to produce sex inversion in striped bass Morone saxatilis and white bass M. chrysops x striped bass hybrids. The androgen 17α-methyltestosterone (MT) was orally administered to fish with a dry diet or with nauplii of brine shrimp Artemia sp. for 30 or 40 d within 33-132 d after hatching (d.a.h.). The sex ratios in all of the control groups were close to 1:1. In MT-treated groups, the proportions of males varied from 59% to 100%, depending on the timing of hormone administration. The following regimes of MT-treatment are recommended for practical application: for hybrids, feed fish with a dry diet containing MT at 30 mg/kg from 92-98 d.a.h. through 128-132 d.a.h.; for striped bass, feed fish with a dry diet containing MT at 30 mg/kg from 63 through 93 d.a.h. Histological analysis revealed that inverted males primarily developed testes with some morphological features of ovaries. With further development, the gonads of inverted males transformed towards normal testes.
Note:
Related Files :
Artemia
hybrid
maturation
methyltestosterone
Morone chrysops
Morone saxatilis
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24178
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:05
Scientific Publication
Hormonal sex inversion in striped bass and white bass x striped bass hybrids
61
Gomelsky, B., Aquaculture Research Center, Kentucky State University, Frankfort, KY 40601, United States
Cherfas, N.B.
Gissis, A.
Hulata, G., Agricultural Research Organization, Institute of Animal Science, Department of Aquaculture, Post Office Box 6, Bet Dagan, 50250, Israel
Hormonal sex inversion in striped bass and white bass x striped bass hybrids
The goal of the study was to determine the optimal androgen treatment to produce sex inversion in striped bass Morone saxatilis and white bass M. chrysops x striped bass hybrids. The androgen 17α-methyltestosterone (MT) was orally administered to fish with a dry diet or with nauplii of brine shrimp Artemia sp. for 30 or 40 d within 33-132 d after hatching (d.a.h.). The sex ratios in all of the control groups were close to 1:1. In MT-treated groups, the proportions of males varied from 59% to 100%, depending on the timing of hormone administration. The following regimes of MT-treatment are recommended for practical application: for hybrids, feed fish with a dry diet containing MT at 30 mg/kg from 92-98 d.a.h. through 128-132 d.a.h.; for striped bass, feed fish with a dry diet containing MT at 30 mg/kg from 63 through 93 d.a.h. Histological analysis revealed that inverted males primarily developed testes with some morphological features of ovaries. With further development, the gonads of inverted males transformed towards normal testes.
Scientific Publication
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