Results 41 to 50 of about 6,957 (188)

Circadian Rhythms of Locomotor Activity in the Nile TilapiaOreochromis niloticus [PDF]

Chronobiology International, 2009
Behavioral rhythms of the Nile tilapia were investigated to better characterize its circadian system. To do so, the locomotor activity patterns of both male and female tilapia reared under a 12:12 h light-dark (LD) cycle were studied, as well as in males the existence of endogenous rhythmicity under free-running conditions (DD and 45 min LD pulses ...
Vera, LM, Cairns, Louise, Sanchez-Vazquez, F Javier, Migaud, Herve   +3 more
openaire   +3 more sources

Genetic Evaluation of GIFT and Existing Strains of Nile Tilapia, Oreochromis niloticus L., Under On-Station and On-Farm Conditions in Bangladesh

Asian Fisheries Science, 2000
Comparative production performances of Genetically Improved Farmed Tilapia (GIFT) and existing Nile, Oreochromis niloticus L. strains were assessed in five test environments (nursery systems, cisterns, hapas, net cages, and grow-out ponds) and ...
M.G. HUSSAIN
doaj   +1 more source

Scanning electron microscopy and histological studies on the skeletal muscles in post hatching Nile tilapia (oreochromis niloticus) [PDF]

Benha Veterinary Medical Journal, 2015
The aim of the present study is to investigate the histomorphological changes of the skeletal muscleduring early larval stages of Nile tilapia with special concern to the hyperplasia, occurring in the skeletalmuscles.
M. EL Magd, H. Bahgat, M. Attia, Y. Magdy   +3 more
doaj   +1 more source

VIBRIOSIS IN NILE TILAPIA, OREOCHROMIS NILOTICUS, AND SUSCEPTIBILITY OF CATFISH, CLARIAS GARIEPINUS [PDF]

Assiut Veterinary Medical Journal, 2011
The aim of the present study was to investigate vibriosis in Nile tilapia, Oreochromis niloticus, homologous and heterologous-species pathogenicity to both Nile tilapia and sharptooth catfish, Clarias gariepinus, the histopathological lesions in infected
A. A. ELKAMEL, AYA G. SAAD EL-DEEN, S.M. AFIFI   +2 more
doaj   +1 more source

Cryopreservation of Nile Tilapia (Oreochromis niloticus) Sperm

, 2016
The main aim of this study is to determine the effect of the straw volume (0.25 vs. 0.5 mL) on Nile tilapia sperm quality after cryopreservation. Sperm was frozen according to conventional slow freezing procedure and diluted at ratio of 1:3 with ionic extender containing 350 mM glucose and 30 mM Tris containing 10% dimethylacetamide.
Bozkurt, Yusuf, Yavaş, İlker
openaire   +3 more sources

Seasonal Histology of the Testes of Nile Tilapia (Oreochromis niloticus) [PDF]

Journal of Veterinary Anatomy, 2011
In the present research, the histology of the testes of Nile tilapia were done on 56 males sexually mature Nile tilapia fish collected monthly from the River Nile at Giza over the period from September 2009 to August 2010. The testis of the Nile tilapia during the spring, summer and autumn seasons was surrounded by very thin tunica albuginea.
M. El-Sakhawy, A. El-Saba, M. Abd Rabou, M. El- Shammaa,, S. Hussein,   +4 more
openaire   +1 more source

Probiotic in diets for Nile tilapia (Oreochromis niloticus) fingerlings

Research, Society and Development, 2022
The objective was to evaluate the effects of the probiotics Bacillus subtilis and Bacillus cereus (4x1011 CFU kg−1) (BSC) in diets for Nile tilapia fingerlings. A total of 450 fish (average weight of 2.81 ± 0.06 g) were distributed in a completely randomized design, in 15 aquariums of 210 liters, consisting of five treatments and three replications ...
Grace Kelly Goudinho Pires, Débora Tatiane Oliveira Xavier, Herivelto Beck de Souza, Valdir Silva de Castro, Janaina Fernanda Rossetto, Fábio Bittencourt, Aldi Feiden, Altevir Signor   +7 more
openaire   +1 more source

Apparent nutrient utilization and metabolic growth rate of Nile tilapia, Oreochromis niloticus, cultured in recirculating aquaculture and biofloc systems

Open Agriculture, 2022
Recirculating aquaculture systems (RAS) and biofloc systems (BFS) have been considered eco-friendly aquaculture technologies in the last few decades. However, which system performs better has become a common question for fish farmers.
Amin Muhamad, Agustono Agustono, Ali Muhamad, Prayugo Prayugo, Hum Nurul Nadiah Mohd Firdaus   +4 more
doaj   +1 more source

Behaviours Associated with Acoustic Communication in Nile Tilapia (Oreochromis niloticus)

PLoS ONE, 2013
Sound production is widespread among fishes and accompanies many social interactions. The literature reports twenty-nine cichlid species known to produce sounds during aggressive and courtship displays, but the precise range in behavioural contexts is unclear.
Longrie, Nicolas, Poncin, Pascal, Denoël, Mathieu, Gennotte, Vincent, Delcourt, Johann, Parmentier, Eric   +5 more
openaire   +5 more sources

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves, Priscila M. O. Muniz Cunha, Shênia Patrícia Corrêa Novo, Lorena Oliveira Souza Soares, Tatiana Dillenburg Saint‐Pierre, Fábio Veríssimo Correia, André Luís de Sá Salomão, Rachel Ann Hauser‐Davis, Enrico Mendes Saggioro   +8 more
wiley   +1 more source