scholarly journals Bio-economic study of aquaculture integrated fish tilapia (Oreochromis niloticus) under the desert environment conditions (case study), North Sinai, Egypt

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Hamid Mansour ◽  
Mohamed Ahmed ◽  
Mohamed ElShahed
Keyword(s):  
Oreochromis Niloticus ◽  
Desert Environment ◽  
Economic Study ◽  
North Sinai

Monitoring agricultural water in the desert environment of New Valley Governorate for sustainable agricultural development: a case study of Kharga

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Mohammed A. El-Shirbeny ◽  
Abdelraouf M. Ali ◽  
Ghada A. Khdery ◽  
Nasser H. Saleh ◽  
Nagwan M. Afify ◽  
...  
Keyword(s):  
Agricultural Development ◽  
Agricultural Water ◽  
Desert Environment

An Economic Study of Summer Tomato Production in North Sinai Governorate

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Ashraf Ismail ◽  
Mohamed ElSayed ◽  
Reyad Radwan ◽  
Ragab Hefny
Keyword(s):  
Economic Study ◽  
Tomato Production ◽  
North Sinai

Commercial-scale aquaculture of tilapia species in Zambia.

2020 ◽  
Author(s):  
Douglas Flynn
Keyword(s):  
Oreochromis Niloticus ◽  
Inorganic Compound ◽  
Chicken Manure ◽  
Green Water ◽  
Commercial Scale ◽  
Tilapia Rendalli ◽  
Productive System ◽  
Dominant Fish ◽  
Initial Scheme

Abstract This case study describes the piloting and subsequent commercialization of an integrated pig and fish operation in Zambia. The initial scheme began in October 1981 using indigenous Zambian species including Oreochromis andersonii, Oreochromis macrochir and Tilapia rendalli. Different fertilization techniques were trialled, including organic (chicken manure) and inorganic (compound) fertilisers, and different integration systems were tested; ducks over fish and pigs over fish. Over the 29 years the project has been running, the variety of methods originally trialled have been refined to the extremely productive system in place today. Oreochromis niloticus is the dominant fish species produced, and members of the Clarias genus used as the main predator. The hatchery has been intensified (and now incorporates mono-sexing), aeration systems have been implemented in grow-out ponds and a green-water floating fish pellet has been developed. Yields have increased from an initial average of 2.5 to 3 tons/ha to present yields of over 11 tons/ha. The initial five hectare project has grown to over 45 ha of water producing over 600 tons of fish a year, and a stable herd of 200 sows producing in excess of 4100 slaughter stock per annum.

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