scholarly journals The potential of periphyton-based cage culture of Nile tilapia in a Brazilian reservoir

Aquaculture ◽  
2016 ◽  
Vol 464 ◽  
pp. 229-235 ◽  
Author(s):  
F. Garcia ◽  
D.M. Romera ◽  
N.S. Sousa ◽  
I. Paiva-Ramos ◽  
E.M. Onaka
Keyword(s):  
Nile Tilapia ◽  
Cage Culture

scholarly journals Investigation of parasite and diseases at cage culture Nile tilapia (Oreochromis niloticus) in Southern region of Bangladesh

2020 ◽  
Vol 6 (3) ◽  
pp. 431-437
Author(s):  
Mohammad Ashaf Ud Doulah ◽  
SM Majharul Islam ◽  
Mohammad Shadiqur Rahman ◽  
Md Shariful Islam ◽  
Mohammad Harun Or Rashid ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Cage Culture ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Eleven Species

The study was carried out to identify the parasite and causative diseases on cage reared tilapia at Bakerganj upazila, Barisal district. The infected tilapia fishes were collected from the cages and brought to the laboratory to find out signs, symptoms and infection area on the fish body. Physico-chemical parameters of water, such as water temperature, pH, dissolved oxygen, nitrate, phosphate and ammonia were monitored fortnightly. The values of water temperature (°C), pH, dissolved oxygen (mg/l), nitrate (mg/l), phosphate (mg/l) and ammonia (mg/l) were 32.4±2.1, 6.2±0.3, 7.52±0.4, 0.028±.008, 11.30±2.26 and 0.09±0.02, respectively but the concentration of nitrate was so higher during the study time. Eleven species of parasites namely, Chilodonella sp, Trichodiniasp., Gyrodactylussp.,Cichlidogyrus sp., Capillariasp, Orientocreadium sp, Eustrongylidae sp, Allocreadium sp, Euclinostomum sp, Tylodelphys sp. and Metagonimus spwere were identified. Parasites were found on all the examined parts of the fish body but gill showed the most infested area of the host. Highest mortality rate was occurred in the month of October and lowest mortality rate was in July. In this circumstance, proper management system and handling are best ways to prevent diseases and reduce the mortality rate of tilapia on cage farming in the southern area. Res. Agric., Livest. Fish.6(3): 431-437, December 2019

scholarly journals Characterization of the Production and Dissemination Systems of Nile Tilapia in Some Coastal Communities in Ghana

2017 ◽  
Vol 7 (1) ◽  
pp. 14
Author(s):  
K. K. Mireku ◽  
D. Kassam ◽  
W. Changadeya ◽  
F. Y. K. Attipoe
Keyword(s):  
Nile Tilapia ◽  
Production Systems ◽  
Fish Farming ◽  
Coastal Communities ◽  
Fish Feed ◽  
Cage Culture ◽  
Volta Lake ◽  
Farming Community ◽  
Aquaculture Development

Aquaculture development has been identified as a key process to meeting the demand for cheap and readily available source of protein. The resultant has been the springing up of cages along the Volta Lake with most farmers producing Nile tilapia. However, the sector faces an array of challenges which needs urgent attention. A study was undertaken to ascertain the production systems and dissemination channel of Nile tilapia among farmers along selected coastal regions in Ghana. A survey of 190 farmers representing the fish farming community in the area was used -these comprised 187 males and 3 females. Pond culture and cage culture were the most common holding facilities used constituting 58.8% and 28.9% respectively. The production of all-male tilapia was popular among farmers and constituted 66.8% of production, while the production of mixed sex tilapia formed 25.8 %. The study revealed that the high prices of fish feed and lack of access to finance were the top ranking financial challenge facing fish farmers in the area corresponding to 73.2% and 51.1% of the response respectively. Other factors such as distance to hatchery and price of fingerling was a significant factor affecting the choice of source of fingerling for stocking (P<0.05) for farmers who used dugout ponds. There was no clearly laid down protocol for dissemination the tilapia. Farmers (16%) who undertook dissemination directly supplied fingerlings and broodstock to other farmers. Investment of capital into tilapia production can improve productivity and profitability. 

scholarly journals Sustainability of Nile tilapia net-cage culture in a reservoir in a semi-arid region

2016 ◽  
Vol 66 ◽  
pp. 574-582 ◽  
Author(s):  
R.S.T. Moura ◽  
W.C. Valenti ◽  
G.G. Henry-Silva
Keyword(s):  
Arid Region ◽  
Nile Tilapia ◽  
Cage Culture ◽  
Net Cage ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Extensive Net Cage Culture of Nile Tilapia (Oreochromis niloticus) Fingerlings in Nutrient-enriched Pond

Our Nature ◽  
2013 ◽  
Vol 10 (1) ◽  
pp. 61-70
Author(s):  
W. Jiwyam
Keyword(s):  
Body Weight ◽  
Surface Area ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Supplemental Feeding ◽  
Cage Culture ◽  
Initial Body Weight ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Net Cage ◽  
Net Cages

To investigate the potential of extensive net cage culture for Nile tilapia (Oreochromis niloticus) fingerlings, an experiment was conducted in net cages suspended in a fertilized pond. Mixed-sex population of Nile tilapia with an average initial body weight of 0.065 g was used to stock in experimental cages. Four treatments; non added-substrate without supplemental feeding (NSNF), non added-substrate with supplemental feeding (NSAF), added-substrate without supplemental feeding (ASNF), and added-substrate with supplemental feeding (ASAF) were tested. The results indicated that addition of substrates which gave an additional submerged surface area of approximately equal to the total cage surface area did not show significant effect on the growth (p > 0.05). The fish gross yield obtained from non added-substrate cages without supplemental feeding was 1.22 kg/m3 for a 56-day period.DOI: http://dx.doi.org/10.3126/on.v10i1.7752

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