Results 11 to 20 of about 7,458 (221)

Glass eels and viruses – a lesson learnt from stocking the eastern German Baltic Sea coast

open access: yesTransboundary and Emerging Diseases, Accepted Article., 2022
Abstract Concerns about Anguillid herpesvirus 1 (AngHV‐1) in European eels, especially due to stocking measures, is increasingly coming into focus and raises questions regarding disease monitoring and prevention. In the past, stocking of AngHV‐1‐positive eels into waters assumed AngHV‐1‐free has led to a rapid increase of infected eels in the wild. For
Laura Kullmann   +3 more
wiley   +1 more source

Induction of oocyte developer hormones (oodev) on the maturity of Poropuntius tawarensis [PDF]

open access: yesE3S Web of Conferences, 2022
Poropuntius tawarensis is an endemic fish belonging to the Cyprinidae family found in Laut Tawar Lake, Central Aceh, Indonesia. P. tawarensis has a limited distribution and the fertilization only occurs in the rainy season.
Mellisa Siska   +2 more
doaj   +1 more source

Comparative liver morphology associated with the hepatosomatic index in five Neotropical anuran species

open access: yesThe Anatomical Record, 2020
AbstractThe liver is an important metabolic organ in vertebrates. In anurans, the hepatosomatic index (HSI) reflects differences in energy storage and reproductive activities between males and females. The objective of this study was to describe the histological and histometric parameters of the livers of five species of Neotropical anurans, taking sex‐
Taynara Leão   +5 more
openaire   +3 more sources

VITELLOGENESIS ACTIVITY OF CHANNA MARULIOIDES, BLEEKER, 1851, IMPACT OF FOLICLE STIMULATING HORMONE AS REPRODUCTIVE DOMESTICATION

open access: yesThe Iraqi Journal of Agricultural science, 2023
This study aims to determine the vitelogenesis activity by FSH hormone induction in the early stage of gonadal maturation. The treatament is a differences FSH dose with indicators of vitelogenesis activity were estradiol-17β levels in the blood ...
Rizal. A. Hutagalung   +3 more
doaj   +1 more source

Reproductive cycle and sexual maturity size of landed Selene peruviana (Perciformes: Carangidae) on the coasts of the Ecuadorian Pacific

open access: yesCiencias Marinas, 2023
The Peruvian moonfish (Selene peruviana) is an important fisheries resource that is landed in the main fishing harbors of Ecuador. At the local level, little information is available regarding the biology of this species, which hinders the development ...
Kléver Mendoza-Nieto   +2 more
doaj   +1 more source

Salinity effect on fry development of hybrid Malaysian mahseer (Tor tambroides ♂ × Barbonymus gonionotus ♀) [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
The purpose of this study was to analyse the influence of water salinity on fry development of hybrid Malaysian mahseer under controlled conditions.
Siti Nur Ain   +4 more
doaj   +1 more source

Gonad development and reproduction in the monoecious species Chlorophthalmus agassizi (Actinopterygii: Aulopiformes: Chlorophthalmidae) from the Sardinian Waters (Central-Western Mediterranean) [PDF]

open access: yes, 2010
Background. The shortnose greeneye, Chlorophthalmus agassizi Bonaparte, 1840, is a species with a circumglobal distribution and is among the most abundant commercial fishes in some Mediterranean areas.
Cabiddu S, Cau A, Follesa MC, Porcu C
core   +1 more source

Changes in Condition Factor, Hepatosomatic and Gonadosomatic Index of Yellowfin Tuna (Thunnus albacares) in Captivity

open access: yesJurnal Perikanan Universitas Gadjah Mada, 2022
The necessity for tuna products in the world community continues to increase, while production relies only on catching, thus causing overfishing. Therefore, breeding technology to support tuna farming is fundamental to be developed. Yellowfin tuna farming in Indonesia has been successful in cultivating broodstock.
Hutapea, Jhon Harianto   +2 more
openaire   +2 more sources

Essential oils in the initial phase of broodstock diets of Nile tilapia

open access: yesRevista Brasileira de Zootecnia, 2014
This study evaluated the effect of feed supplementation (at doses of 0, 50, 100, 150, and 200 mg/kg) with SALUTO®, a microencapsulated blend of essential oils including carvacrol, cinnamaldehyde, 1,8-cineol, and pepper oleoresin, in Nile tilapia ...
André Freccia   +5 more
doaj   +3 more sources

Pre-hibernation energy reserves and their consumption during freezing in the moor frog Rana arvalis in Siberia

open access: yesThe European Zoological Journal, 2022
For the first time, the pre-hibernation sizes of “storage” organs (liver and fat bodies), the type, concentration and total content of reserve substances (glycogen or lipids) in these organs and muscle tissue, and their change during freezing in freeze ...
N. Bulakhova, K. Shishikina
doaj   +1 more source

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