Effect of water temperature, stocking density and feeding cycle on growth of juvenile Poecilobdella manillensis / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 1071-1074, 2015.
Article
in Chinese
| WPRIM
| ID: wpr-246149
ABSTRACT
The effect of water temperature, stocking density and feeding cycle on the growth of Poecilobdella manillensis juvenile was conducted P. manillensis was conducted respectively under different conditions water temperatures(18, 22, 26, 30,34, 38 degrees C and CT), stocking density (75, 125, 200, 275, 350 individual/L) and feeding cycle(2, 4, 6, 8, 12, 16 d). After 30 days, survival rate, weight gain rate, specific growth rate were measured. There was a significant correlation between water temperature and specific growth rate (γ = -0.066x2 + 3.543 1x -38.09, R2 = 0.837 9). Based on the regression equation, the specific growth rate of P. manillensis achieved the maximum (9.461 4) at 26.84 degrees C. And the most optimal water temperature was 26-30 degrees C. Meanwhile, the survival rates of P. manillensis was 0 at 38 degrees C in 3 d. There was significant negative correlation between density and specific growth rate (γ = -0.005 7x + 9.197 3, R2 = 0.998 3) and between feeding cycle and specific growth rate (γ = -0.468 2x + 10.574, R2 = 0.998 8).
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Physiology
/
Temperature
/
Water
/
Chemistry
/
Body Size
/
Feeding Behavior
/
Annelida
Limits:
Animals
Language:
Chinese
Journal:
China Journal of Chinese Materia Medica
Year:
2015
Type:
Article
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