Cette étude a étéréalisée dans le but de diagnostiquer l'activité piscicole dans la zone de Niamey. Elle émane des résultats obtenus à l’issue de 3 mois (juillet à septembre, 2023) d’études auprès des pisciculteurs.L'objectif principalde cette étude était de recueillir des données exhaustives sur les aménagements piscicoles de la zone périurbaine de la ville Niamey.
Mysids or opossum shrimps are grouped under macro-zooplankton which are used for human consumption. Mysids are harvested using hand trawl made of mosquito netting during low tide period at surface water. The study was carried out on monthly basis from one site from Coastal area, three sites from Mangrove estuarine area and three sites from Saltpan twice a month during May 2016 to December 2017.They show significant variation in their availability in different seasons. All the embryos within a single brood pouch were found at the same stage of development.
Two rotaryweeders with, conical and hexagonal were developed and their performance was evaluated. Various parameters such as weeding efficiency, plant damage, field capacity and weeding time reduction were considered during the trial. The AfricRice rotary weeder and a hand hoe were used as controls. The Boulbi irrigated paddy field was used as the experimental setting.The trial was conducted in a completely randomized Fisher block design with 4 replications in an SRI.
In the context of climate change and aridity of soils, the manufacture of enriched compost, from corn stalks and with very little animal manure, has often been proposed to obtain a kind of artificial manure. Composting is a fertilization technique that is well suited to the soil. The present study was initiated in order to contribute to a better knowledge of composting with the addition of substrates under the conditions of Burkina Faso.
The present research conducted in Adilabad and Mahabubnagar districts of Telangana state was purposively selected for the study. A sample of 240 farmers was selected for the study.An ex-post facto research design was adopted.
With Heat stress causes detrimental effects on duck production which generate negative economic impacts. Thus, raising Pekin duck as heat stress tolerant breeds and are well-adapted to Philippine climate and feeding azolla that is well-known for its high crude protein, lysine and glutamine that can combat heat stress due to immune-modulatory effect is indeed significant alternative strategy. The study aimed to determine the stress level, behavior and economics of pekin duck fed with different levels of fresh azolla raised under induced heat stress.
The aim of the work is to valorize the unconventional fly ash from the Bargny coal-fired power plant, in order to address issues related to the durability of concrete structures, as well as to provide economic and environmental solutions linked to the storage of industrial waste. To this end, a physico-chemical, mineralogical and mechanical characterization of hydraulic binders was carried out at the DANGOTE cement plant laboratory. Firstly, CEM II/B 32.5 R cement from the said plant was substituted with fly ash at different substitution rates (0%, 5%, 10%, 20% and 30%).
With the ultimate goal of sustaining eco-friendly goat farming, identifying high quality feeds and preservation techniques to improved utilization efficiency which reduces GHGs, is vital to improve the overall goat productivity and elevate raisers profit. The study aims to determine the feeding efficiency of varieties of napiergrass fermented with various substrates on the growth, in-vivo digestibility and economics in raising upgraded goats.
The objective of this study was to assess the impact of stump splits density and fertilization on the chemical properties of soil and the chemical composition of biomass in Panicummaximum Jacq. C1. The study was conducted in a split-plot design with three replications at the INERA research station in Burkina Faso. The primary treatments consisted of three densities of Panicummaximum stumps (3 splits, 4 splits, 5 splits), while the secondary treatments comprised five types of fertilization.
Globally, demands of fish have been increasing due to awareness of peoples about health. Live table size fish marketing is now becoming popular due to preference of consumer andalso fetch higher price in the market. The traditional methods of live fish transportation have significant fish mortality due to transportation stress and thus economic losses. The objective of this study was to standardize the doses of clove oil for handling and transportation as well as loading weight of fish.