Background and purpose: Hyperosmotic solutions of calcium chloride bromide, extensively used in the oil industry, can be a source aquatic pollution.Materials methods: In present study, we investigated whether freshwater snail Planorbarius corneus L., previously chronically exposed to toxic concentrations these chemicals, recover fecundity growth clean water. We also examined if higher tolerance...

Objective: An experiment was conducted to investigate the effects of citrus brown snail powder as a source of calcium on growth performance, tibia characteristics, immune response and blood metabolites in broiler chickens.  Methods: One hundred and eighty 1-day old chicks were randomly distributed into four treatments, each of which had three replicates. Each replicate contains 15 chicks. The t...