Results 41 to 50 of about 3,896,690 (244)

The Influence of Eicosapentaenoic Acid on <i>Macrobrachium rosenbergii</i> Broodstock: Ovarian Development, Antioxidant Status, and Lipid Metabolism. [PDF]

Aquac Nutr
Lipids are essential for crustacean reproduction, supporting broodstock growth and ovarian development. However, studies of n‐3 highly unsaturated fatty acids (HUFAs), particularly eicosapentaenoic acid (EPA), on the growth and ovarian development of prawn broodstock remain limited.
Sun Y, Chen H, Gan L, Liu J, Jian Y, Xu Q, Ding Z.   +6 more
europepmc   +2 more sources

Thiamine Allocation and Deficiency Status Throughout the Life Cycle of Cod. [PDF]

Ecol Evol
Throughout the life cycle of fish, the allocation of micronutrients like thiamine (vitamin B1) shifts. Especially reproduction appears to be taxing, as any excess thiamine gets allocated to reproductive tissues while somatic tissues are kept at functionally sufficient concentrations.
Hauber MM, Todisco V, Nordahl O, Tibblin P, Fridolfsson E, Kärvegård E, Hylander S.   +6 more
europepmc   +2 more sources

Gonadosomatic Index, Oocyte Development and Fecundity of the Snakehead Fish (Channa striata) in Natural River of Mae La, Singburi Province, Thailand.

Pakistan Journal of Biological Sciences, 2019
BACKGROUND AND OBJECTIVE Reproductive cycle of snakehead fish (Channa striata) is necessary to inform management plans of the natural fish. This work aimed to study the gonadosomatic index (GSI), oocyte development and fecundity of C.
D. Boonkusol, P. Junshum, Kongkiat Panprommin   +2 more
semanticscholar   +1 more source

Seasonal Variations in Gonadosomatic Index, Hepatosomatic Index, and Condition Factor of Metapenaeus affinis

Egyptian Journal of Aquatic Biology and Fisheries
Samples of Metapenaeus affinis were collected from the Iraqi coastal waters between January 1 and December 1, 2021, to investigate the development of sexual maturity. Seasonal variations in gonadal function were observed in males, with peak rates (0.052) recorded in summer and the lowest rates (0.024) in winter.
Intisar Jabbar, Ibtisam Abdul-Sahib, Aqeel Al-Waeli, Azhar Abdul-Sahib, Tariq Al-Maliky   +4 more
openaire   +2 more sources

An indirect approach to estimate spawning fraction as applied to Sardinops sagax from northern Chile

Scientia Marina, 2001
The spawning fraction of fishes with multiple spawnings and indeterminate fecundity is normally estimated through biologically intensive and time-consuming histological procedures, such as the one based on the proportion of females with post-ovulatory ...
Gabriel Claramunt, Rubén Roa
doaj   +1 more source

A case of intersex occurrence in Steindachneridion parahybae (Steindachner, 1877) (Siluriformes: Pimelodidae) under captivity condition: A cytogenetic and morphological study [PDF]

, 2016
Poco se sabe sobre la biología reproductiva de Steindachneridion parahybae , una especie de teleósteo gonocorístico en peligro de extinción que habita la cuenca del río Paraíba do Sul y en éste trabajo se describe por primera vez la aparición de ...
Caneppele, Danilo, Honji, Renato Massaaki, Lo Nostro, Fabiana Laura, Moreira, Renata G., Pandolfi, Matias   +4 more
core   +2 more sources

Effect of the combination of a cold water temperature and exogenous estrogens on feminization, growth, gonadosomatic index and fat muscle content of Nile tilapia Oreochromis niloticus (Linnaeus, 1758)

Latin American Journal of Aquatic Research, 2019
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Angel Lazaro-Velasco, Helsi M. Isidro-Cristobal, J. P. Alcántar‐Vázquez, Carolina Antonio-Estrada, Daniel Calzada-Ruiz, R. M. L. Torre   +5 more
semanticscholar   +1 more source

Effects of Water Temperature on Gonads Growth in Ambystoma mexicanum Axolotl Salamanders

Animals, 2023
The thermal environment is a major factor influencing amphibians. For example, amphibian reproduction occurs in specific temperatures, and minor changes in this aspect could have negative impacts on this biological process.
Chester R. Figiel
doaj   +1 more source

Reproductive biology of Yellowfin Seabream Acanthopagrus latus in coastal waters of Hormozgan [PDF]

بوم‌شناسی آبزیان, 2012
Some reproductive biology features of Yellowfin Seabream Acanthopagrusl atus including gonadosomatic index, hepatosomatic index, sex ratio, macroscopic and microscopic survey of gonad development, frequency of different maturationstages and absolute and ...
Shahlah Nikkhah Khaje Ataei, Iman Sourinejad, Ehsan Kamrani, Mehdi Ghodrati Shojaei, Majid Shahsavari, Mohammad Asadi   +5 more
doaj  

Breeding Biology of Freshwater Goby Glossogobius Giuris Using Gonadosomatic Index and Gonadal Histology

Annals of Bangladesh Agriculture, 2020
The breeding season of fishes plays an important role in fish domestication and conservation of fish diversity. Freshwater goby, Glossogobius giuris is an important food fish of Bangladesh. Therefore, a study was performed to determine the breeding biology through assessing the gonadosomatic index (IG), fecundity and histology of gonad of G. giuris.
S Jabbar, SK Liza, MA Islam, I Rashid, ML Rahman, MS Hossain, MA Salam   +6 more
openaire   +1 more source