A 22-day ban on catching, selling, hoarding and transporting of hilsa will come into effect from October 14 to protect Hilsa with eggs.   The ban will be effective until November 4, said a handout from the Ministry of Fisheries and Livestock on Thursday.   This is the peak period when hilsas release eggs.   Hilsa has the highest contribution in the country's fish production, the government says. It contributes to more than 12.09 percent to the country's fish production.