Open AccessMonitoring of productive and biochemical parameters of young Clarias gariepinus during feeding of Skretting and Roycher AQUA feeds in experimental conditions
Author(s) -
Alla Trofymchuk,
V. S. Bitiutskyi,
Nataliia Grynevych,
О. Oleshko,
Віталій Миколайович Поліщук,
M. I. Trofymchuk,
Віктор Миколайович Харчишин,
Світлана Поліщук
Publication year - 2021
Publication title -
naukovij vìsnik lʹvìvsʹkogo nacìonalʹnogo unìversitetu veterinarnoï medicini ta bìotehnologìj ìmenì s.z. gžicʹkogo. serìâ: sìlʹsʹkogospodarsʹkì nauki/naukovij vìsnik lʹvìvsʹkogo nacìonalʹnogo unìversitetu veterinarnoï medicini ta bìotehnologìj ìmenì s.z. g̀žicʹkogo. serìâ sìlʹsʹkogospodarsʹkì nauki
Language(s) - English
Resource type - Journals
eISSN - 2707-5834
pISSN - 2519-2698
DOI - 10.32718/nvlvet-a9504
Subject(s) - catfish , clarias gariepinus , starter , fish <actinopterygii> , zoology , fishery , feed conversion ratio , body weight , biology , experimental research , mathematics , food science , mathematics education , endocrinology
The article presents the results of monitoring the productive and biochemical indicators of the growth rate of young clary catfish using dry extruded complete feed for fish, which have proven to be best adapted for use at all stages of growing clary catfish, namely: Skretting and Roycher AQUA in experimental conditions. The research was conducted in the educational and experimental laboratories of Bila Tserkva National Agrarian University from 2019 to 2021. For the experiment, we used the young of the African marble clary catfish (Clarias gariepinus), purchased from one of the fish farms in the Odesa region. Clary catfish fry was kept in four rectangular plastic containers for 90 liters of freshwater. The tanks were two-thirds full (60 liters). The water temperature was maintained at 26 °C. For the experiment, 120 fries were used, which were kept in four plastic tanks by the method of analogs of 30 specimens each. Given that the fry differed in weight (for experiment 1 we selected fry with higher weight, and for experiment 2 – with lower weight), they were divided on the principle of analogs into two experimental and two control groups. Based on the results of monitoring in Experiment 1, fish observations, and mathematical calculation, we found that the feed ratio when fed Skretting and Roycher AQUA starter feed is 0.74 and 0.99 %, respectively. Based on the results of monitoring, fish observations, and mathematical calculation, it was found that the feed ratio in experiment 2 when feeding starter feed Skretting and Roycher AQUA is 0.75 and 1.54 %, respectively. The high feed rate for the use of Roycher AQUA can be explained by overuse due to the grinding of the granules. Growing aquaculture facilities in an artificially formed system – production, allows you to get environmentally friendly fish products all year round. This is a very important criterion in modern environmental conditions.