Exploitation costs of water aerators at the warm-water fish-ponds

Abstract

Modern fish production requires utilization of new technologies, which assumes application of appropriate mechanization and devices. In the process of the fish production in the warm-water fish-ponds it frequently appears a problem of lacking the oxygen dissolved in water. This problem may be solved by utilization of water aeration device. Selection of the water aeration device is usually carried out in our practice on the basis of its technological and exploitation characteristics, without knowledge of economic effects both of its provision and utilization of concrete technical solution. Economic effects of aeration device utilization suppose complete knowledge of methodological procedure for calculation of costs, as well as disposal of reliable initial data necessary for calculation of the costs for such devices.

Savremena proizvodnja ribe podrazumeva primenu novih tehnologija, koje za sobom povlače i upotrebu odgovarajućih sredstava mehanizacije i uređaja. U uzgoju ribe na toplovodnim ribnjacima se kao čest problem javlja nedostatak kiseonika rastvorenog u vodi, što se može rešiti primenom uređaja za aeraciju vode. Odabir uređaja za aeraciju vode se u našoj praksi najčešće vrši na osnovu njegovih tehnološko-eksploatacionih karakteristika, bez poznavanja ekonomskih efekata nabavke i primene konkretnog tehničkog rešenja. Ekonomski efekti upotrebe uređaja za aeraciju podrazumevaju potpuno poznavanje metodološkog postupka za određivanje troškova, kao i raspolaganje pouzdanim polaznim podacima koji su neophodni za izračunavanje troškova eksploatacije ovakvih uređaja.