Abstract
Effect of Ammonia Stress on Blood Constitutes in Nile Tilapia
Highlights
Nitrogen compounds have been identified as major metabolic products in fish culture
The total content of hemoglobin estimated in the blood of Nile tilapia was highly significant decreased When the Nile tilapia was exposed to different concentrations of ammonium nitrate and a decrease in total hemoglobin and decrease in derived The derived hematological indices of mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) content was observed as shown in Tables from 1 to 12
Ammonium sulphate was the most toxic compound to rainbow trout compared to composite fertilizers (Erol Capkin, et al, 2010)
Summary
Nitrite may reach toxic concentrations in high density aquaculture systems and in flowing waters due to industrial contamination and fertilizer use. It is an intermediate product in the bacterial oxidation of ammonia to nitrate in conditioned aquaculture systems (Collins, 1975). This nitrogen compound is highly toxic to aquatic organisms and posses a potential threat to cultured fish. Ammonium sulphate was the most toxic compound to rainbow trout compared to composite fertilizers (Erol Capkin, et al, 2010).Respiratory blood pigment hemoglobin manifests the transport of oxygen. Nitrite an intermediate product of ammonia nitrification, may reach toxic concentration in aquaculture
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