Abstract
The article presents the results of the accelerated recovery after loss of weight and physiological status after wintering, for example, Russian sturgeon ( Acipenser gueldenstaedtii , Brandt) juveniles aged 1+…2+ years in LLC "Fish farm "Aquatrade" (the Astrakhan Region). There was determined weight, length, fatness of fishes, content of hemoglobin, whey protein, lipids, cholesterol in blood, erythrocytes sedimentation rate at the age of 18 months (before wintering), 24 months (after wintering), 25 and 26 months (in the feeding process), 31 months (after recovering period). Before wintering the young was characterized by optimum physiological rates, after wintering (age 24 months) physiological state got worse; weight loss made 7-8%; fatness decreased from 0.48 ± 0.03 to 0.45 ± 0.4 units. At the first stage of the experiment after wintering the young was fed by compound feed "Aquarex 48/17" (higher content of lipids and protein, experiment) and "Aquarex 45/12" (standard recipe, control). Feed duration was not longer than 25 days. Growth rate of the young under experiment appeared higher that that under control: on average, weight of fishes aged 25 months made 600 ± 21.1 (experiment) and 560 ± 2.6 g (control). Further feed of the young aged before 26 months, and further up to 31 months with standard recipy feed both in experiment and in controll showed more intensive growth in the experimental group: at the end of experiment weight of fishes made 1064.5 ± 33.8 (experiment) and 727.2 ± 32.9 (control). Young physiological status greatly optimized. Short-term feeding of the sturgeon young after wintering with combined feed "Aquarex 48/17" shortens the period of recovering from losses of weight and physiological status to 5 days and shoprtens time and costs of growing commodity product.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
