Results 81 to 90 of about 4,371,888 (200)

Effects of Hydro-Alcoholic Extract of Withania Coagulans on Antioxidant Status and Sperm Parameters Following Testosterone Administration in Rat

Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Īlām, 2018
Introduction: Enhancement of testosterone levels or its improper and arbitrary usage can disrupt fertility. Today, application of medicinal herbs is considered to treat hormonal disorders and infertility.
Maryam Sarbishegi, Ozra Khajavi
doaj  

Evaluation of laserpuncture on testicular maturation and semen quality of the catfish Sorubim cuspicaudus

Aquaculture Reports
Sorubim cuspicaudus is a native catfish species with potential for aquaculture diversification in Colombia. However, captive reproduction is constrained by asynchronous gonadal maturation and low male semen volume.
Carlos Tapia Pacheco, José Espinosa Araujo, Víctor Atencio García   +2 more
doaj   +1 more source

Photoperiod modulates male sexual maturation in the Emperor tetra (Nematobrycon palmeri), a strictly tropical ornamental fish

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Photoperiod manipulation is widely used to regulate reproduction in temperate fish species, but little is known about its effects in strictly tropical species. This study evaluated whether the Emperor tetra (Nematobrycon palmeri), a tropical ornamental fish, can modulate sexual maturation in response to artificial light regimes.
Lury N. García, Gabriele Lara, Germán E. Merino   +2 more
wiley   +1 more source

Length-weight relationship, condition factor and gonado-somatic index of Labeo calbasu (Hamilton, 1822)

Journal of Fisheries, 2018
An attempt was made to study dynamics of length-weight relationship (LWR), relative condition factor (Kn) and gonado-somatic index (GSI) of Labeo calbasu from the wetlands of South 24 Parganas district of West Bengal, India. A total of 275 fish specimens
E Vahneichong, Sudhir Kumar Das, Anandamoy Mondal, Dibakar Bhakta   +3 more
doaj  

Reproductive biology, artificial reproduction, and breeding strategies of the red swamp crayfish (Procambarus clarkii): A review

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract The red swamp crayfish (Procambarus clarkii) is widely cultured and consumed due to its palatable meat and high nutritional value. It also becomes the most valuable crustacean species because of its amazing yield and economic value in China. However, P.
KeLei Zhang, Jiayun Wu, Zhaojun Wu, Guobin Zhou, Jiaye Guo, Lan Li, Shiyong Yang, Zhengyin Wang   +7 more
wiley   +1 more source

Reproductive traits and population structure of Astyanax aeneus (Characiformes: Characidae) from a subtropical river in Mexico

Revista de Biología Tropical, 2013
Champotón River is an unknown area within the Mesoamerican hotspot in Southestern México. Reproductive traits and population structure of Astyanax aeneus were analyzed along an environmental gradient of the upper, middle and lower sections of the river ...
Patricia Trujillo-Jiménez, Jacinto Elias Sedeño-Díaz, Julio A. Camargo, Eugenia López-López   +3 more
doaj  

Effect of Insecticide Dichlorvos on Ovaries of Mosquito Fish Gambusia affinis (Baird and Girard)

مجلة بغداد للعلوم, 2011
The toxicity of insecticide dichlorvos (90%) was tested in ovaries of mosquito fish using three sublethal concentrations (0.3, 0.6, 0.8 µg/L) and studied their effects on the means of body and ovary weights, gonadosomatic index, ovum size and ova number.
Baghdad Science Journal
doaj   +1 more source

Evaluation of physiological and molecular tools to assess ovarian stages in the black tiger prawn (Penaeus monodon)

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Advancing knowledge of the molecular mechanisms governing vitellogenesis and spawning in the black tiger prawn, Penaeus monodon, requires an efficient method for identifying ovarian stages. Several physiological and molecular tools have been employed to define these stages in laboratory studies.
Gourab Chowdhury, Josephine Nocillado, Tianfang Wang, Abigail Elizur, Scott F. Cummins, Tomer Ventura   +5 more
wiley   +1 more source

Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions

Neotropical Ichthyology
In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including ...
Felipe Alonso, Maximiliano Cánepa, Renata Guimarães Moreira, Matías Pandolfi   +3 more
doaj   +1 more source

Report on gonadosomatic index, size at first maturity and reproductive parameters

, 2018
Peer ...
Albo Puigserver, Marta, Coll, Marta, Bellido, José M., Giráldez, Ana, Hidalgo, Manuel, Sbrana, Mario   +5 more
openaire   +1 more source