Productive characteristics of age-3 brood brown trout (Salmo trutta) reared in the conditions industrial aquaculture
| Autor: | A. Mruk, L. Haloyan, L. Terteryan, A. Kucheruk |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
lcsh:SH1-691
0106 biological sciences productivity business.industry Biology biology.organism_classification 010603 evolutionary biology 01 natural sciences lcsh:Aquaculture. Fisheries. Angling Brood Fishery Brown trout Aquaculture relative working fecundity working fecundity 010608 biotechnology brood brown trout (Salmo trutta) Salmo business |
| Zdroj: | Ribogospodarsʹka Nauka Ukraïni, Iss 1(39), Pp 64-72 (2017) |
| ISSN: | 2312-9581 2075-1508 |
| DOI: | 10.15407/fsu2017.01.064 |
| Popis: | Purpose. Study and analysis of productive and reproductive parameters of brood brown trout reared in the conditions of industrial aquaculture with the use of feeding with specialized artificial feeds. Methodology. Fish rearing was performed using a technology traditional for rainbow trout. Biological evaluation of fish was performed on live material according to the scheme developed by I.F. Pravdin (1966) for salmonids. Fish were anesthetized with “Propiscin”. Metric parameters were measured with the aid of a ruler and caliper. Fish weight was determined on electronic balances. Eggs were preserved in a 4% formalin solution, weight of individual eggs was determined with the aid of torsion balances, egg diameter with a caliper. The duration of spermatozoid motility in males was determined under a microscope under 10X40 magnification with the aid of a stopwatch, sperm concentration was determined in a Goriaev chamber. Multiple regression analysis was performed in JMP IN 4 (SAS Institute). The factor was considered significant if р |
| Databáze: | OpenAIRE |
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