MATERNAL TRIIODOTHYRONINE INJECTIONS CAUSE INCREASES IN SWIMBLADDER INFLATION AND SURVIVAL RATES IN LARVAL STRIPED BASS, MORONE-SAXATILIS

被引:109
作者
BROWN, CL
DOROSHOV, SI
NUNEZ, JM
HADLEY, C
VANEENENNAAM, J
NISHIOKA, RS
BERN, HA
机构
[1] UNIV CALIF BERKELEY, DEPT ZOOL, BERKELEY, CA 94720 USA
[2] UNIV CALIF BERKELEY, CANC RES LAB, BERKELEY, CA 94720 USA
[3] UNIV CALIF DAVIS, DEPT ANIM SCI, DAVIS, CA 95616 USA
来源
JOURNAL OF EXPERIMENTAL ZOOLOGY | 1988年 / 248卷 / 02期
关键词
D O I
10.1002/jez.1402480207
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
We have experimentally elevated the triiodothyronine (T3) content of striped bass (Morone saxatilis) eggs by injecting female striped bass intramuscularly with a large dose of T3 (20 .mu.g/g body weight) shortly before the induction of spawning. The significant elevation of T3 concentrations in the eggs from the hormone-injected fish (to 180 ng per gram), compared with those of vehicle-injected controls (about 19 ng/g), confirms the transfer of T3 from the maternal circulation into oocytes. There were significant differences in the development of embryos and larvae from the two groups. Within the first week after hatching, the hormone-treated cohorts showed significantly greater larval body area, length, and dry weight, despite similar patterns of yolk and oil-globule utilization. The rate of swimbladder inflation and the survival rate were also significantly enhanced in the cohorts produced by T3-treated females. There was a positive and highly significant correlation between the concentration of T3 in the unfertilized oocytes and the rate of survival within the cohort. The improvement in larval survival may be a result of the maintenance of elevated T3 levels through the first week of development: during the transition to active feeding but before the onset of larval thyroid function. Thyroid hormone supplements appear to confer a distinct advantage to larval striped bass during this early, fragile developmental stage.
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页码:168 / 176
页数:9
相关论文
共 34 条
[1]  
BAKER-COHEN K. FRANCE, 1961, ZOOLOGICA [N Y], V46, P181
[2]  
BROWN CL, 1986, AM ZOOL, V26, pA24
[3]  
BROWN CL, 1987, AM FISH SOC S, V2, P144
[4]  
BROWN CL, IN PRESS DEV MATURAT
[5]  
DALES SAMUEL, 1954, CANADIAN JOUR ZOOL, V32, P244, DOI 10.1139/z54-024
[6]   DIFFERENTIAL SENSITIVITY OF CELLS OF FOLLICULAR EPITHELIUM AND OOCYTES IN THE STELLATE STURGEON TO UNFAVORABLE CONDITIONS, AND CORRELATING INFLUENCE OF TRIIODOTHYRONINE [J].
DETTLAFF, TA ;
DAVYDOVA, SI .
GENERAL AND COMPARATIVE ENDOCRINOLOGY, 1979, 39 (02) :236-243
[7]  
DOROSHEV S I, 1981, Rapports et Proces-Verbaux des Reunions Conseil International pour l'Exploration de la Mer, V178, P495
[8]   THE POTENTIAL FOR USING THE ANABOLIC HORMONES 17-ALPHA-METHYLTESTOSTERONE AND (OR) 3,5,3'-TRIIODO-L-THYRONINE IN THE FRESH-WATER REARING OF COHO SALMON (ONCORHYNCHUS-KISUTCH) AND THE EFFECTS ON SUBSEQUENT SEAWATER PERFORMANCE [J].
FAGERLUND, UHM ;
HIGGS, DA ;
MCBRIDE, JR ;
PLOTNIKOFF, MD ;
DOSANJH, BS .
CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE, 1980, 58 (08) :1424-1432
[9]  
GORBMAN A, 1960, P SOC EXP BIOL MED, V103, P865
[10]   PREPARATION OF LIPID-FREE TISSUE-EXTRACTS FOR CHROMATOGRAPHIC DETERMINATION OF THYROID-HORMONES AND METABOLITES [J].
GORDON, JT ;
CRUTCHFIELD, FL ;
JENNINGS, AS ;
DRATMAN, MB .
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1982, 216 (02) :407-415