Effect of excess iodide on thyroid function of rainbow trout,Salmo gairdneri

1986 ◽  
Vol 1 (4) ◽  
pp. 171-177 ◽  
Author(s):  
J. G. Eales ◽  
Daniel G. Cyr ◽  
Robert F. Cook
Keyword(s):  
Rainbow Trout ◽  
Thyroid Function ◽  
Salmo Gairdneri ◽  
Excess Iodide

Canola Meal in Rainbow Trout (Salmo gairdneri) Production Diets

1983 ◽  
Vol 40 (3) ◽  
pp. 281-286 ◽  
Author(s):  
Ronald W. Hardy ◽  
Craig V. Sullivan
Keyword(s):  
Rainbow Trout ◽  
Weight Gain ◽  
Thyroid Function ◽  
Control Diet ◽  
Normal Growth ◽  
Salmo Gairdneri ◽  
Canola Meal ◽  
Future Research ◽  
Food Conversion ◽  
Organoleptic Quality

Production diets containing up to 20% canola meal were fed for 108 d to rainbow trout (Salmo gairdneri) to evaluate the effects on weight gain, food conversion, thyroid function, and organoleptic quality of market-sized fish. Weight gain was not affected by dietary canola meal level. Food conversion values and organoleptic properties were not influenced by dietary treatments. Feed costs were reduced by $18.70 (U.S.) per metric ton compared to control diet at the highest level of dietary canola meal (20%). Thyroid function was significantly affected by dietary canola meal. Dose-related changes in the histological appearance of the thyroid and alterations of plasma thyroxine and 3,5,3′-triiodothyronine levels indicated that compensatory adjustments in thyroid function allowed normal growth to proceed in the canola-fed fish. Possible mechanisms of dietary glucosinolate influence on thyroid function are discussed and areas for future research are suggested.Key words: canola meal, plasma T4, plasma T3, thyroid histology, goitrogen, glucosinolates, trout growth, food conversion, least-cost diets, organoleptic quality

Thyroid function in the rainbow trout (Salmo gairdneri, Rich.)

1965 ◽  
Vol 5 (2) ◽  
pp. 145-159 ◽  
Author(s):  
Gilles La Roche ◽  
C.L. Johnson ◽  
A.N. Woodall
Keyword(s):  
Rainbow Trout ◽  
Thyroid Function ◽  
Salmo Gairdneri

Temperature Selection of Rainbow Trout (Salmo gairdneri) Fingerlings in Vertical and Horizontal Gradients

1971 ◽  
Vol 28 (11) ◽  
pp. 1801-1804 ◽  
Author(s):  
R. W. McCauley ◽  
W. L. Pond
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Temperature Preference ◽  
Temperature Selection ◽  
Horizontal Gradients ◽  
Significant Difference ◽  
Preferred Temperatures ◽  
Laboratory Investigations ◽  
Horizontal Temperature Gradients ◽  
Selection Of

Preferred temperatures of underyearling rainbow trout (Salmo gairdneri) were determined in both vertical and horizontal temperature gradients. No statistically significant difference was found between the preferred temperatures by the two different methods. This suggests that the nature of the gradient plays a lesser role than generally believed in laboratory investigations of temperature preference.

Sign in / Sign up

Export Citation Format

Share Document