Rust - Scope
Scope:
scope of a variable starts where it's defined and ends at the bloc's end.
always local to scope
fn main(){
let x = 5;
{
let x = 6;
println!({},x);//x value 6
}
println!("{}",x); //x value is 5
}
BIOFLOC
Biofloc Fish Farming Biofloc technology What is biofloc ? Biofloc is the macro-aggregation of bacteria, algae, detritus and other decomposed components associated with extracellular polymeric substances. It is the combination of bacteria, diatoms, zooplankton, protozoa, macro-algae, faeces, uneaten feed, and exoskeleton from dead organisms. What is biofloc technology (BFT)? BFT is an innovative and cost-effective technology. It is based on the principle of waste nutrients recycling, in particular nitrogen, into microbial biomass that can be used as feed by the cultured animals. Heterotrophic bacteria are stimulated to grow by controlling the C:N ratio in the water through the modification of the carbohydrate content in the feed or by the addition of an external carbon source in the water, so that the bacteria can assimilate the waste ammonium for new biomass production. Hence, ammonia can be maintained at a low and non‐toxic concentration...
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