NDLI: The influence of triiodothyronine (T3) on the early development of piracanjuba (Brycon orbignyanus)

Content Provider	Springer Nature Link
Author	Landines, M. A. Sanabria, A. I. Senhorini, J. A. Urbinati, E. C.
Copyright Year	2010
Abstract	This paper reports the triiodothyronine’s (T3) effects on the early growth and survival of piracanjuba (Brycon orbignyanus) produced from fertilized eggs hormone exposed. The study was carried out in two phases. In the first phase, eggs divided in 6 batches were immersed in T3 solutions: 0.01; 0.05; 0.1; 0.5 ppm; 1 ppm and control (no T3). After a 15-min immersion, eggs were transferred to incubators where larvae were kept up to 72 h after hatching. Larval weight, length and yolk sac volume were determined every 12 h. Sixty and 72 h after hatching, larvae exposed to 0.5 ppm T3 were significantly heavier than the others, and those exposed to 1 ppm T3 showed the lowest weight. The yolk sac absorption was not affected. In the second experimental phase, the resulting fry from the first phase were stocked into 3 boxes per treatment (5 larvae L−1) and fed with plankton, fish larvae and feed prepared in the hatchery (48% CP) in the first 3 days, plankton and feed from the 4th to the 10th day and only feed in the next (last) 5 days. Fry weight, length and specific growth rate were determined at 1, 5, 10 and 15 days. Survival was calculated in the last day. In the 15th day, fry length did not differ among treatments but the weight of the control group was higher. Higher survival in the T3-treated groups suggested lower predation among fry. The results allowed us to conclude that there was no expressive effect of T3 on the growth, but it improved the survival of the piracanjuba progeny.
Starting Page	1291
Ending Page	1296
Page Count	6
File Format	PDF
ISSN	09201742
Journal	Fish Physiology and Biochemistry
Volume Number	36
Issue Number	4
e-ISSN	15735168
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-06-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Growth Larvae Survival Thyroid hormone Zoology Animal Biochemistry Animal Anatomy / Morphology / Histology Animal Physiology Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Physiology Medicine Biochemistry Aquatic Science

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The influence of triiodothyronine (T3) on the early development of piracanjuba (Brycon orbignyanus).

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