Results 101 to 110 of about 134,449 (350)

Investigation of anesthetizing effect of tobacco (Nicotiana tabacum) aqueous and alcoholic extract on rainbow trout (Oncorhynchus mykiss) [PDF]

open access: yes, 2013
The main goal of anesthesia in rainbow trout is decrease mobility and reduce stress of fish while breeding, and also facilitate operation such as manipulation to Tagging, Biometry, Sorting, Inspection and Sampling for pathology test. In the present study,
Bashti, T.   +3 more
core  

Effect of heterozygosity, ploidy and incubation temperature on post‐cranial axial skeletal meristics and deformities in Atlantic salmon (Salmo salar)

open access: yesJournal of Fish Biology, EarlyView.
Abstract The teleostean post‐cranial axial skeleton is a highly specialized structure for an aquatic mode of life. However, there is limited knowledge regarding parental contributions, early‐life environmental impacts on its meristic variation and if reduced heterozygosity challenges its development.
Murugesan Sankar   +5 more
wiley   +1 more source

Comparison of digestive enzyme activity in the stomach, pyloric caeca and intestine in diploid and triploid female of rainbow trout (Oncorhynchus mykiss) [PDF]

open access: yes, 2006
The effects of chromosome manipulation on the digestive enzyme activity in the rainbow trout were studied. The enzymes included Pepsin, Trypsin, Chymotrypsin, cileimylase, Lipase and Alkaline Phosphatase which were assessed in diploid and triploid female
Farhanghi, M.   +5 more
core  

Testing non‐lethal techniques for endoparasite detection and sex determination in pumpkinseed sunfish (Lepomis gibbosus)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Developing non‐lethal techniques to estimate parasite infection is critical for studying disease ecology in wild animals. We tested the effectiveness of coelomic ultrasonographic examination and plasma enzyme markers to detect liver infection with bass tapeworms Proteocephalus ambloplitis (Leidy 1887) as well as the effectiveness of ultrasound
Matthew Archambault   +4 more
wiley   +1 more source

Horse bean, pea and rape protein and flax seed oil in feed for organic trout [PDF]

open access: yes, 2010
Organic horse bean, pea and rape may partly replace the fish meal protein, and flax seed oil may replace the fish oil in feed for organic rainbow trout. These are the most recent results from the ORAQUA project. Fish meal and fish oil are unique sources
Jokumsen, Alfred
core  

Postprandial oxygen consumption, ammonia excretion and carbon dioxide production of channel and blue catfish

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fishes undergo dramatic physiological changes upon consumption of a meal, including an increase in oxygen consumption to support the metabolic cost of digestion [specific dynamic action (SDA)] and an increase in the excretion of ammonia. Channel catfish (Ictalurus punctatus) and blue catfish (I.
Brian D. Ott   +2 more
wiley   +1 more source

A survey of growth performance, intestinal micro-flora and meat shelf-life in rainbow trout fed with Pistacia atlantica kurdica essential oil [PDF]

open access: yes, 2017
In this study, the essential oil (EO) of Pistacia atlantica subsp. kurdica was added at the rate of 10 g/kg of daily diet of rainbow trout and its effect on gut microbiota (Enterobacteriaceae, Lactobacillus spp., total count), growth performance and ...
Bahramian, S., Parsa, A.
core  

The effect of early life thermal environment on morphology and growth of yellow perch (Perca flavescens)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Early life development in fishes is a period of high phenotypic plasticity. Water temperatures during embryogenesis can lead to alterations in growth and metabolic and morphological phenotypic variations. This study aimed to characterize the effects of temperature on the growth and morphology of yellow perch throughout early development, a ...
Shamaila Fraz   +10 more
wiley   +1 more source

BIOCHEMICAL AND MORPHOMETRIC PARAMETERS OF PRE-LARVAE OF THREE SALMONIDS SPECIES AT ONE-DAY AGE

open access: yesRibogospodarsʹka Nauka Ukraïni, 2016
Purpose. To study and analyze the morphometric and some biochemical parameters of pre-larval brown trout, rainbow trout and brook trout in post-embryonic period under the conditions of "Rybnyi Potik” farm in the Transcarpathian region for further use of ...
Ye. Barylo
doaj   +1 more source

Growth, Condition, and Trophic Relations of Stocked Trout in Southern Appalachian Mountain Streams [PDF]

open access: yes, 2019
Stream trout fisheries are among the most popular and valuable in the United States, but many are dependent on hatcheries to sustain fishing and harvest.
Besler, Douglas A.   +5 more
core   +1 more source

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