Water Quality and Blood Biochemical Parameters as Indicators for Welfare Assessment in a Sturgeon Private Farm

摘要

Lately,Acipenseriformes are considered to be in danger due to over fishing,dams building and to life environment degradation,which is why the focus is on the development of sturgeon farms by accessing European funds.This study aims to assess the sturgeons' welfare in such a farm from Calarasi County.In order to assess the water quality there were taken samples from several checkpoints in farm and there were determined by using Nova 60 photocolorimeter the following physical and chemical parameters: temperature,pH,turbidity,dissolved oxygen,chlorine,nitrates,nitrites,phosphorus,iron,copper,ammonia.sulfates,phenols and detergents.There were also determined the water microbiological parameters,respectively total coliforms and fecal ones.For biochemical examination there were taken hlood samples from several sturgeon specimens and were analyzed by using dry hiochemistry technique (Vettest 8008 analyzer)the following: blood urea nitrogen,creatinine,uric acid,calcium,total proteins,albumin,globulins,alanine aminotransferase,aspartate aminotransferase,gamma glutamyl transferase,triglycerides,carhohydrates,lactate dehydrogenase,phosphorus,magnesium,alkaline phosphatase,total biliruhin,cholesterol.ammonia,amylase,lipase and creatine kinase.The results interpretation was made according to the reference values for sturgeon.Following the researches,it was found that most physical and chemical parameters of water were within normal limits accepted for sturgeon,except nitrates and sulphates.Water microhiological parameters exceeded the limits in all samples.Regarding blood serum biochemical parameters.the obtained values were normal,except alanine aminotranferase,aspartate aminotransferase,triglycerides and alkaline phosphatase.Linking the water quality parameters values with those for blood biochemical parameters,the welfare of sturgeons in the farm may be rated as average.