| Autor: |
Amin, Adnan, Ramachandra Naik, A. T., Nayak, Harsha, Priyadarshini, Nilima |
| Předmět: |
|
| Zdroj: |
Biochemical & Cellular Archives; Apr2017, Vol. 17 Issue 1, p271-274, 4p |
| Abstrakt: |
This study examined the effect of sub-lethal concentration of heavy metal lead nitrate on selected physiological responses of rohu (Labeo rohita). Two concentrations were selected for sub lethal exposure i.e., 1/10th (3.15 ppm) and 1/5th (6.3 ppm) of LC50 for a period of 28 days. Food consumption rate, ammonia-N excretion rate, Oxygen: Nitrogen ratio was studied which showed significant changes throughout the exposure period. Food consumption rate was declined and lower value (0.0068 g feed/g body weight) was noticed on 28th day whereas, ammonia-N excretion rate increased and the highest value (0.00096mg/ l/g/h) was recorded on the 7th day and Oxygen: Nitrogen ratio was declined and the lowest value (4.32) was found in 1/5th concentration of LC50 (6.3 ppm). [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
