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1

Rozrod i podchow raka szlachetnego Astacus astacus [L.] w warunkach kontrolowanych

100%
Pyka J.
Komunikaty Rybackie
|
1999
|
nr 3
7
2

Selekcja wielkosciowa a wyniki podchowu sandacza Sander lucioperca [L.] w obiegach recyrkulacyjnych

84%
Szczepkowski M., Zakes Z.
Komunikaty Rybackie
|
2002
|
nr 6
8-11
3

Czynniki bakteryjne i pasożytnicze diagnozowane u węgorza europejskiego w Polsce w latach 2010-2014 w warunkach podchowu kontrolowanego

67%
Terech-Majewska E., Bernad A., Robak S., Pajdak J., Schulz P., Siwicki A. K., Szweda W.
Medycyna Weterynaryjna
|
2016
|
tom 72
|
nr 10
European eel Anguilla anguilla L. is a fish species highly valued in European fisheries, currently reared under controlled conditions (Aquatic Recirculation System – RAS). In order to protect the health of fish, regular check-ups are carried out in specialized veterinary laboratories. Health hazards are recognized on the basis of clinical, pathological, microbiological, and parasitological surveys. The aim of the study was to analyze the results of health assessment of eels reared under controlled conditions, which was performed in the Diagnostics Laboratory of Fish and Crayfish Diseases, Department of Veterinary Hygiene, Voivodeship Veterinary Inspectorate in Olsztyn, in the period from 2010 to 2014. The results are presented according to the etiologic agents, divided into bacterial and parasitic diseases. In this period, 73 samples (100%) were examined, including 5 samples (6.85%) from glass eels and 68 (93.15%) from elvers. Microorganisms isolated from the collected material were mainly conditionally pathogenic, such as Pseudomonas fluorescens, Aeromonas hydrophila, Shewanella putrefaciens, Aeromonas sobria, Flavobacterium spp., and Chryseobacterium indologenes. The parasitological examination revealed infection with Trichodina spp., Ichthyophtirius multiphilliis, and Pseudodactylogyrus spp. The most frequently diagnosed were gill monogeneans, detected in 34 cases (75.55% of all positive parasitological test results). In 21 cases (61.8%) the infestation manifested itself as a disease. The remaining 13 cases were asymptomatic carriers (38.2%). The analysis shows that the main problem in the controlled rearing of eel are parasitic infestations, which may be endemic and pose a constant threat. Systematic monitoring and preventive measures are necessary throughout the rearing and fattening of fry to maintain a good health status of eels.
4

Dawka paszy a zroznicowanie wielkosci suma europejskiego podchowywanego w obiegach recyrkulacyjnych

67%
Zakes Z., Szkudlarek M., Czerniak S., Ulikowski D.
Komunikaty Rybackie
|
2001
|
nr 6
12-16
5

Wplyw stosowania duzych zageszczen obsad wylegu sandacza [Sander lucioperca] na efekty jego podchowu w skali poltechnicznej

67%
Szczepkowski M., Zakes Z., Kozlowski M., Piotrowska I., Szczepkowska B., Wunderlich K.
Komunikaty Rybackie
|
2009
|
nr 1
1-4
Larval pikeperch (Sander lucioperca L.) were reared at two initial stocking densities of 250 and 350 individuals per liter. The final body weight of the fish reared at the lower stocking density was 12.7% higher than that of the fish held at a higher density. The survival of the larvae was higher at the higher stocking density, while the feed conversion ratio was better at the lower density. Most fish deaths resulted from cannibalism, and losses due to this were 53.8% of the initial stocking density of 350 individuals per liter, and 45.1 % at 250 Individuals per liter. The results indicate that both initial stocking densities produced satisfactory rearing results. It must be emphasized that the final number of fish obtained for further rearing was substantially more at the higher density (350 larvae/l), which suggests this is suitable for practical applications.
6

Przegląd metod podchowu brzany Barbus barbus (L.) w larwalnym i młodocianym okresie życia w warunkach kontrolowanych

67%
Wozniak J., Kaminski R.
Komunikaty Rybackie
|
2014
|
nr 6
The aim of this study was to analyze and summarize rearing conditions for larval and juvenile common barbel according to recent research. Barbel larval and juvenile stages achieve very high survival rates (95-99%) irrespective of water temperature or initial stock density. The only factor affecting survival rates during larval rearing Is diet; specifically, this refers to quality and not to the dry or wet type. The best and most predictable effects can be achieved when the larvae are fed with Artemia nauplii. This kind of food is also the best for larval growth rates. The highest growth rate of barbel larvae was obtained at 26-27°C. The optimal temperature for of juvenile growth is 25-26°C. The results presented here are evidence that barbel is a species which is very easy to rear under controlled conditions.
7

Wpływ parametrów technicznych basenów i właściwości fizycznych pasz komponowanych na efekty podchowu ryb

67%
Rozynski M., Zakes Z.
Komunikaty Rybackie
|
2015
|
nr 3
8

Wybrane wskaźniki podchowu samic i samców sandacza (Sander lucioperca L.) przetrzymywanych w systemach recyrkulacyjnych

67%
Kowalska A., Zakes Z.
Komunikaty Rybackie
|
2014
|
nr 6
The aim of the study was to identify the dependence between the rearing indicators of European pikeperch, Sander lucioperca (L.), (body weight range 15-2000 g, age 0+, 1 +, 2+, 3+) reared in closed recirculating aquaculture systems (RAS) and fish sex. The study material was obtained from artificial reproduction, and the sex of the fish was determined after they were sacrificed. Fish body weight and body length, the body weight coefficient of variation CV, the K and Fulton coefficients of condition, and the hepatosomatic index HSI of males and females were similar in the analyzed fish size groups. Statistically significant differences between the sexes were noted in the absolute weight of the viscera in fish aged 3+ (female body weight = 2.1 kg; male body weight = 1.8 kg), which was 89.2 g (males) and 211.9 g (females) (P < 0.05). The values of VSI in this fish size class were significantly higher among females than males (14.3 and 10.1%, respectively) (P < 0.05). The results permit concluding that the potential development and implementation of production techniques for single-sex pikeperch populations might be economically justified and more advantageous for longer-term rearing of this species in RAS.
9

Znaczenie jakości wody dla stanu zdrowia ryb w podchowach kontrolowanych

43%
Terech-Majewska E., Pajdak-Czaus J., Schulz P., Naumowicz K., Siwicki A. K.
Komunikaty Rybackie
|
2018
|
nr 2
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