Results 31 to 40 of about 6,957 (188)

EFFECT OF DIFFERENT TEMPERATURES ON GROWTH AND SEX RATIO OF NILE TILAPIA (Oreochromis niloticus) FRY [PDF]

open access: yesJournal of Animal and Poultry Production, 2009
         The present study was carried out at Fish Research Center (FRC), Suez CanalUniversity, Ismailia, Egypt, in two consecutive experiments.
Mervat Ali
doaj   +1 more source

Biochemical alterations in caged Nile tilapia Oreochromis niloticus

open access: yesEcotoxicology and Environmental Safety, 2010
Joinville is an important industrial city in Santa Catarina, southern Brazil, and also a risk factor for the Babitonga drainage basin. Oxidative stress-related parameters were evaluated in caged tilapia (Oreochromis niloticus) exposed for 7 days (sites S1 and S2) in a Babitonga drainage basin tributary river.
Jeferson Luis, Franco   +12 more
openaire   +2 more sources

Oogenesis, spermatogenesis and hatching rate of seawater-acclimated Nile Tilapia, Oreochromis niloticus [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2022
Seawater (SW)-acclimated Nile tilapia, Oreochromis niloticus, can grow and survive but rarely have offspring under an elevated salinity environment. To find out the cause(s) of this problem, the size and histology of the gonads of the SWacclimated Nile ...
Biboon Withyachumnarnkul   +4 more
doaj   +1 more source

A novel sex-determining QTL in Nile tilapia (Oreochromis niloticus) [PDF]

open access: yesBMC Genomics, 2015
غالبًا ما تظهر أنواع الأسماك ازدواجية شكلية جنسية كبيرة للسمات المهمة تجاريًا. وفقًا لذلك، فإن السيطرة على الجنس الظاهري، ولا سيما إنتاج مزارع أحادية الجنس، ذات أهمية خاصة لصناعة الاستزراع المائي. تحديد الجنس في البلطي النيلي المستزرع على نطاق واسع (Oreochromis niloticus) معقد، ويشمل مناطق جينية على ثلاثة كروموسومات على الأقل (الكروموسومات 1 و 3 و 23 ...
Christos Palaiokostas   +6 more
openaire   +3 more sources

Desempenho de três linhagens de tilápia submetidas ao tratamento com 17-α-metiltestosterona em condições ambientais não controladas Performance of three tilapia strains submitted to 17-α-methyltestosterone, under uncontrolled environmental conditions

open access: yesRevista Brasileira de Zootecnia, 2009
Este estudo foi realizado para descrever o efeito da reversão sexual de linhagens de tilápia sobre as taxas de sobrevivência, o crescimento e o percentual de machos fenotípicos em condições ambientais variáveis.
Erika Neumann   +2 more
doaj   +1 more source

Intraperitoneal Germ Cell Transplantation in the Nile Tilapia Oreochromis niloticus

open access: yesMarine Biotechnology, 2013
Germ cell transplantation offers promising applications in finfish aquaculture and the preservation of endangered species. Here, we describe an intraperitoneal spermatogonia transplantation procedure in the Nile tilapia Oreochromis niloticus. Through histological analysis of early gonad development, we first determined the best suitable stage at which ...
Farlora, Rodolfo   +6 more
openaire   +4 more sources

From “Sabang to Merauke”, the presence of non-native Oreochromis mossambicus and Oreochromis niloticus (Cichliformes: Cichlidae) in Indonesia [PDF]

open access: yesBIO Web of Conferences
Mozambique Tilapia Oreochromis mossambicus and Nile Tilapia Oreochromis niloticusare two non-native species of cichlids (Cichlidae: Cichliformes) that have established populations in Indonesia.
Iqbal Muhammad   +7 more
doaj   +1 more source

Scale deformities in Nile tilapia, Oreochromis niloticus, (Actinopterygii: Cichlidae) from Sudan [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2005
Scale deformity in Nile tilapia, Oreochromis niloticus, (Actinopterygii: Cichlidae) is reported for the first time from Dongola, north of Sudan. The abnormal scales are fused pairs, with two well-developed foci.
L.A. Jawad
doaj   +3 more sources

Evaluation of Flesh Quality of Genetically Modified Nile Tilapia and their Wild Type under Commercial Farm Conditions [PDF]

open access: yesJournal of Desert and Environmental Agriculture
This study investigates the meat quality of farmed Oreochromis niloticus (Nile tilapia) produced through untraditional breeding methods. With growing consumer demand for high-quality, sustainably farmed fish, there is a pressing need to assess how these ...
Ayman Abouel-Yazeed   +5 more
doaj   +1 more source

Influence of treatments in the quality of Nile tilapia (Oreochromis niloticus) fillets [PDF]

open access: yesFood Science & Nutrition, 2013
AbstractIn this study, the influence of different treatments was evaluated: nonwashing, washing in chlorinated water and washing/soaking in chlorinated water and sodium chloride on the quality of Nile tilapia (Oreochromis niloticus) fillets during storage at 1.0 ± 0.5°C through daily analysis of pH, moisture, and lipids content.
Fonseca, Gustavo Graciano   +4 more
openaire   +2 more sources

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