Performances of oxygenation devices on trout farms in Republic of Serbia, Republic of North Macedonia, and Bosnia and Herzegovina
Journal
AGRICULTURAL ENGINEERING
Date Issued
2025
Author(s)
Čanak, Stevan
Radosavljević, Vladimir
Gligorević, Kosta
Pavličević, Jerko
Savić, Nebojša
DOI
10.5937/poljteh2504099c
Abstract
<jats:p>Dissolved oxygen is universally recognized as the most decisive limiting factor
in intensive trout aquaculture, exerting profound effects not only on production efficiency
but also on fish welfare, physiological stability, immune competence, and the capacity to
resist disease. When oxygen levels fall below optimal thresholds, trout are exposed to
chronic stress, impaired metabolic processes, reduced feed intake, and a heightened
susceptibility to pathogens, all of which compromise both productivity and sustainability.
To counter these risks, water oxygenation—defined as the technological process of
enriching aquaculture water with pure oxygen—has become an indispensable intervention
for modern trout farming. In Republic of Serbia and Republic of North Macedonia,
oxygenation systems have been continuously applied for more than two decades, while in
Bosnia and Herzegovina their use has been established for over ten years, collectively
enabling production intensification, seasonal stability, and improved economic outcomes. This study explores the diversity of oxygenation technologies currently employed, ranging
from diffuser systems and low‑head oxygenators to pressurized tanks and devices with
rotating mechanical components.
Particular emphasis is placed on their operational principles, efficiency parameters, and
exploitation characteristics, with attention to how these technologies are adapted to the
specific environmental conditions and management practices of rainbow trout farms in the
region.</jats:p>
in intensive trout aquaculture, exerting profound effects not only on production efficiency
but also on fish welfare, physiological stability, immune competence, and the capacity to
resist disease. When oxygen levels fall below optimal thresholds, trout are exposed to
chronic stress, impaired metabolic processes, reduced feed intake, and a heightened
susceptibility to pathogens, all of which compromise both productivity and sustainability.
To counter these risks, water oxygenation—defined as the technological process of
enriching aquaculture water with pure oxygen—has become an indispensable intervention
for modern trout farming. In Republic of Serbia and Republic of North Macedonia,
oxygenation systems have been continuously applied for more than two decades, while in
Bosnia and Herzegovina their use has been established for over ten years, collectively
enabling production intensification, seasonal stability, and improved economic outcomes. This study explores the diversity of oxygenation technologies currently employed, ranging
from diffuser systems and low‑head oxygenators to pressurized tanks and devices with
rotating mechanical components.
Particular emphasis is placed on their operational principles, efficiency parameters, and
exploitation characteristics, with attention to how these technologies are adapted to the
specific environmental conditions and management practices of rainbow trout farms in the
region.</jats:p>
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