Results 21 to 30 of about 779,549 (316)

Effects of acute exposure to bifenthrin on some haematological, biochemical and histopathological parameters of rainbow trout (Oncorhynchus mykiss)

open access: yesVeterinární Medicína, 2009
: The effect of the pyrethroid, bifenthrin, on rainbow trout (Oncorhynchus mykiss) was assessed based on biochemical, haematological and histopathological examination of fish exposed to Talstar 10 EC pesticide preparation (active substance 100 g/l ...
J. Velisek, Z. Svobodova, V. Piackova
doaj   +1 more source

Effects of dietary soybean meal inclusion on calcium-binding protein expression and inflammatory gene markers in liver and intestine of Atlantic Salmon (Salmo salar L.)

open access: yesAquaculture Reports, 2023
Atlantic Salmon (Salmo salar L.) are sensitive to the inclusion of soybean meal in the diet which can result in inflammation in the distal intestine.
Tsung-Yu Tsai   +3 more
doaj   +1 more source

Induction of final oocyte maturation in Cyprinidae fish by hypothalamic factors: a review

open access: yesVeterinární Medicína, 2009
Gonadotropin-releasing hormone in Cyprinidae as in other Vertebrates functions as a brain signal which stimulates the secretion of luteinizing hormone from the pituitary gland. Two forms of gonadotropin-releasing hormone have been identified in cyprinids,
P. Podhorec, J. Kouril
doaj   +1 more source

Ovary transcriptomic analysis reveals regulation effects of dietary fish oil on hormone, lipid, and glucose metabolism in female adult spotted scat (Scatophagus argus)

open access: yesFrontiers in Marine Science, 2022
In the aquaculture industry, fish oil is widely used as a nutritional supplement to promote the gonadal maturation of broodstocks, while the mechanism of fish oil on ovary development remain unclear.
Tuo Wang   +10 more
doaj   +1 more source

What is fish culture? [PDF]

open access: yes, 2005
Document contains 4 ...

core  

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

open access: yesPopulation Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi   +3 more
wiley   +1 more source

Negative effects of malachite green and possibilities of its replacement in the treatment of fish eggs and fish: a review

open access: yesVeterinární Medicína, 2007
Malachite green has been used as an effective compound to control external fungal and protozoan infections of fish since 1933 but it has never been registered as a veterinary drug for use in food fish because of its potential carcinogenicity ...
E. Sudova   +3 more
doaj   +1 more source

On-farm trials with rice fish cultivation in the west Kano rice irrigation scheme, Kenya [PDF]

open access: yes, 2006
The viability of integrating rice farming with fish culture was studied in ten (10) rice plots. The on-farm research was done during one rice-growing season starting May 2003.
Auma, E.O., Rasowo, J.
core  

Thermostable neutral metalloprotease from Geobacillus sp. EA1 does not share thermolysin's preference for substrates with leucine at the P1′ position

open access: yesFEBS Letters, EarlyView.
Knowing how proteases recognise preferred substrates facilitates matching proteases to applications. The S1′ pocket of protease EA1 directs cleavage to the N‐terminal side of hydrophobic residues, particularly leucine. The S1′ pocket of thermolysin differs from EA's at only one position (leucine in place of phenylalanine), which decreases cleavage ...
Grant R. Broomfield   +3 more
wiley   +1 more source

Residual pharmaceutically active compounds (PhACs) in aquatic environment - status, toxicity and kinetics: a review

open access: yesVeterinární Medicína, 2009
Awareness of residual pharmaceutically active compounds (PhACs) in aquatic ecosystems is growing as research into these pollutants increases and analytical detection techniques improve.
Z.H. Li, T. Randak
doaj   +1 more source

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