Physiological justification for using an unconventional method for processing raw material in aquaculture / Фізіологічне обґрунтування використання нетрадиційного методу обробки сировини в аквакультурі
Journal Title: Рибогосподарська наука України - Year 2018, Vol 43, Issue 1
Abstract
Purpose. To study the influence of Spirulina рlatensis, which was previously treated by a non-traditional method, on physiological and biochemical processes in the organism of hydrobionts. To analyze the growth rate of Ukrainian scaly carp and tilapia under the influence of the feeding factor. Methodology. Experimental studies were carried out in the laboratory of biological resources and aquaculture. Following was performed during the experiments: clinical examination of hydrobionts, control of growth rates, survival rate by recording the results in a working journal, physiological studies, analysis of morphological and functional blood indices, which were performed according to generally accepted methods. Findings. It was found that the proposed method of non-traditional processing of feed resource for hydrobionts promoted the activation of metabolic processes, contributed to the improvement of fish development indices. During the process of cultivation of Spirulina рlatensis, the use of plasma-chemically activated water had a positive effect on the dynamics of development. Originality. This article presents for the first time the results of a positive effect of the pretreatment of Spirulina platensis culture with plasma-chemically activated water for its feeding to hydrobionts. A positive effect of this method of feeding on the functional status of fish organism and the process of adaptation-compensatory mechanisms in ontogenesis has been found. Practical value. The proposed method will provide an opportunity to improve the rate of the development of hydrobionts, physiological and biochemical processes with the maximum utilization of the potential of fish organism at the stages of active growth, and also to reduce the cost of artificial feeds.
Authors and Affiliations
O. Honcharova, N. Tushnytska
Formation of risks of fish fauna survival in ecosystems of river basins of Ukraine. The concept of the science “Riskology” / Формування ризиків виживання іхтіофауни у річкових басейнах України. Концепція науки «Ризикологія»
Purpose. To detect the sources of the appearance of risks in water basins and consequences from their formation for environment and fish fauna. Development of conceptual foundations of environmental-economic and social s...
Biological justification for fish harvest limits in the Zaporizhzhya (Dnipro) reservoir for 2017 / Біологічне обґрунтування лімітів вилову риби у Запорізькому (Дніпровському) водосховищі на 2017 рік
Purpose. To analyze the current state of the populations of roach, bream, pikeperch and silver bream in the Zaporozhye (Dnipro) reservoir and to determine the acceptable amounts of commercial harvest of these fish specie...
Fish yield prediction in water bodies of the Kyrgyz Republic / Прогнозування обсягів вилову риби з водойм Киргизької Республіки
Purpose. The development of a Fish Yield Prediction Model for lakes and water reservoirs of the Kyrgyz Republic based on easily measured physico-chemical and biological indicators (limnological parameters) for the effect...
Evaluation of the toxicity of ammonia polluted waters for Carassius auratus gibelio (Bloch, 1782) by the «time sampling» method / Оцінювання токсичності забруднених амоніаком вод на Carassius auratus gibelio (Bloch, 1782) методом «Time sampling»
Purpose. To determine the possibility of performing an express-evaluation of the toxicity of ammonia polluted waters based on ethological parameters of Carassius auratus gibelio (Bloch,1782) with the use «time sampling»...
THE EFFECTS OF WATER TEMPERATURE REGIME FLUCTUATIONS ON THE EMBRYONIC DEVELOPMENT OF SILVER CARP (HYPOPHTHALMICHTHYS MOLITRIX) / ВПЛИВ КОЛИВАНЬ ТЕМПЕРАТУРНОГО РЕЖИМУ ВОДОЙМИ НА ЕМБРІОНАЛЬНИЙ РОЗВИТОК БІЛОГО ТОВСТОЛОБИКА (HYPOPHTHALMICHTHYS MOLITRIX)
Purpose. To determine the effect of temperature regime fluctuations on the development of silver carp embryos, as well as the activity of enzymatic reactions in fish eggs. Methodology. The studies were conducted at the...