Results 31 to 40 of about 19,234 (225)

The first finding of Hassall's corpuscles in the thymi of cultured sturgeons

open access: yesVeterinární Medicína, 2016
Histological examination of thymi from juvenile Acipenser ruthenus and Acipenser brevirostrum after haematoxylin and eosin staining revealed the presence of Hassall's corpuscles, in a scattered distribution within the thymic medulla in two of seven, and ...
E. Salkova, M. Flajshans
doaj   +1 more source

Marking fin spine of juvenile sturgeon (acipenseriformes: acipenseridae) using oxytetracycline and the comparing of growth performance

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2021
This study aimed to describe and validate the formation of the rings in the spine of the pectoral fin and to determine the coherence of the OTC mark with the rings of three species of Caspian Sea sturgeon, the Persian sturgeon (Acipenser persicus), the ...
S. Bakhshalizadeh   +3 more
doaj   +1 more source

Effects of Freezing Methods on Lipid Oxidation and Microstructure of Muscle Fibers in Acipenser sinensis [PDF]

open access: yesShipin Kexue, 2023
This study was executed in order to investigate quality deterioration caused by lipid oxidation during the frozen storage of Acipenser sinensis. Fish pieces were stored at −18 ℃ for 24 weeks after being frozen using a freezer (−20 or −50 ℃) or liquid ...
LIAO Jinhan, CHEN Jiwang, TAN Ling, LIAO E, JIAO Chuyi
doaj   +1 more source

The effects of endosulfan on P450 1A gene expression, antioxidant enzymes activity and histopathological alterations in liver of Persian sturgeon (Acipenser persicus Borodin, 1987) [PDF]

open access: yes, 2016
The effects of 14 days exposure to sublethal concentrations of endosulfan (10 and 40 μg L−1) were investigated in mRNA- P450 1A expression, antioxidant enzymes (SOD and CAT) activity and histopathological alterations of Persian sturgeon (Acipenser ...
Khalili, M.   +3 more
core   +1 more source

Development of growth rate, body lipid, moisture, and energy models for white sturgeon (Acipenser transmontanus) fed at various feeding rates. [PDF]

open access: yes, 2017
The objectives were to develop and evaluate: 1) growth rate models, 2) body lipid, moisture, and energy models for white sturgeon fed at various feeding rates (FR; % body weight [BW] per day) and then evaluate responses at proportions of optimum feeding ...
Fadel, James G   +3 more
core   +1 more source

Does habitat stability structure intraspecific genetic diversity? It’s complicated... [PDF]

open access: yes, 2020
Regional phylogeographic studies have long been conducted in the southeastern United States for a variety of species. With some exceptions, many of these studies focus on single species or single clades of organisms, and those considering multiple ...
Boot, Matthew R.   +15 more
core   +1 more source

Genetic difference and resemblance between Acipenser persicus and Acipenser gueldenstaedtii by means of RAPD Technique

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2005
We studied genetic difference and resemblance between Acipenser persicus and Acipenser gueldenstaedtii using Random Amplified Polymorphic DNA (RAPD) technique. The DNA of tail fin tissue of three A. persicus and A.
A. Gharaei1; M. porkazemi2; S. Rezvani3; B. Amiri majazi4
doaj   +2 more sources

Molecular cytogenetic differentiation of paralogs of Hox paralogs in duplicated and re-diploidized genome of the North American paddlefish (Polyodon spathula). [PDF]

open access: yes, 2017
BackgroundAcipenseriformes is a basal lineage of ray-finned fishes and comprise 27 extant species of sturgeons and paddlefishes. They are characterized by several specific genomic features as broad ploidy variation, high chromosome numbers, presence of ...
Amemiya, Chris T   +7 more
core   +4 more sources

Influence of repeated intravital extraction of eggs from sturgeon hybrids on their oogenesis under conditions of recirculation aquaculture system

open access: yesИзвестия ТИНРО, 2015
Dynamics of cytomorphological characteristics of oocytes in ovaries is considered for two sturgeon hybrids: besters of the breed Burtlevskaya Huso huso (Linnaeus) x Acipenser ruthenus (Linnaeus) and the breed Aksayskaya Acipenser ruthenus x ( Huso huso x
Olga P. Filippova   +2 more
doaj   +1 more source

Intestinal histomorphology, autochthonous microbiota and growth performance of the oscar (Astronotus ocellatus Agassiz, 1831) following dietary administration of xylooligosaccharide [PDF]

open access: yes, 2016
The present study investigates the changes in intestinal histomorphology, autochthonous microbiota and growth performance of the oscar, Astronotus ocellatus, following dietary administration of different levels of xylooligosaccharide (XOS).
Hoseinifar, S.H.   +2 more
core   +1 more source

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