Decomposition and Mineralization Effect of Various Sources of Pig Manure on Water Quality and Nutrients Availability for Agro-Fish System in Benin

Bokossa, Hervé Kouessivi Janvier; Saïdou, Aliou; Sossoukpe, E.; Fiogbé, D. E.; Kossou, D.K.

doi:10.4236/as.2014.512129

Cited by 3 publications

(4 citation statements)

References 21 publications

(26 reference statements)

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“…The conductivity was function of the area richness in minerals (NH4 + , PO4 -, NO3 -, NO2 -). It was higher than those obtained by Akodogbo et al (2015) with pig dung and close to what was reported by Bokossa et al (2014) with pig manure. This difference may be explained by the greatest richness of rabbit manure (compared to pig dung) in mineral salts necessary to primary production that is the base of organisms' development.…”

Section: Discussionsupporting

confidence: 81%

Effect of Different Doses of Rabbit Manure on the Abundance, Growth Rate and Production of Zooplankton in Plurispecific System for Fish Larvae Feeding

Adande

Liady²,

Sossoukpe³

et al. 2017

ija

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In order to determine the optimal dose of rabbit manure for plurispecific production of fresh water zooplankton in controlled area, the effects of six different doses of dry rabbit manure (T1 = 300 g/m 3 , T2 = 600 g/m 3 , T3 = 900 g/m 3 , T4 = 1200 g/m 3 , T5 = 1500 g/m 3 , T0 = 0g/m 3 ) on physico-chemical and biological parameters of areas were monitored for 27 days in cultures realized in plastic buckets of 80 L capacity each. Manures are from rabbits fed with diet previously revealed favorable to their growth, and is made of 2% of dried cassava, 30% of maize bran, 10% of palmist cake, 10% of soya cake, 5% of cotton cake, 2% of shell, 10% of malt, 5% of beer yeast, 10% of Panicum maximum and 1% of salt. Six days after fertilization, buckets were seeded with zooplankton by 26 individuals per liter (ind/L). Results obtained show that the supply of rabbit manure has improved chemical properties and microalgae production (phytoplankton) with treatments T1, T2, T3, T4 and T5. Optimal conditions of zooplankton production through phytoplankton are obtained with doses in T2 and T4 which present the best specific growth rate. The daily production through the highest phytoplankton biomass (chlorophyll-a) has been obtained with dose in T5. Thus, doses 600 g/m 3 and 1200 g/m 3 of rabbit manure may be considered optimal for a plurispecific production of fresh water zooplankton. It was noted that Rotifers were predominant in abundance in almost the different culture areas.Keywords Rabbit manure; Optimal dose; Zooplankton; Plurispecific production BackgroundThe natural feed appreciated by fish larvae is essentially made of zooplankton and artificial dry feed are not always appropriated to this premature stage (Arimoro, 2005). Consequently, zooplankton such as cladocerans, copepods and rotifers are used for larval rearing by many researchers in controlled area (Awaïss et al., 1992). Artemia (live food) is the most used for certain marine species whose hatching, development and growth were realized in pond (Agadjihouèdé et al., 2011). Nevertheless, it remains less effective in fresh water fish larvae. Artemia as larvae food is inaccessible to rural fish farmers (Fiogbe et al., 2003). Indeed, its use doesn't always give good zootechnical performances to fresh water fishes. Zooplankton production in controlled area is carried out in many studies, by the way of phytoplankton production using different types of fertilizer (chemical, organic genuine vegetal or animal) (Adande et al., 2015). Chemical fertilizers (minerals) are the former used for phytoplankton production for the purpose of zooplankton production (Boyd et al., 2008) while organic fertilizers genuine vegetal or animal are the second used (Dalme et al., 2011). Between these two categories of fertilizer, the first type is dangerous to the environment and also expensive while the second type is less expensive and does not present any risk for the environment (Agadjihouèdé et al., 2011;Adande et al., 2017). These findings justify nowadays the easy use of organic...

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Section: Discussionsupporting

confidence: 81%

Effect of Different Doses of Rabbit Manure on the Abundance, Growth Rate and Production of Zooplankton in Plurispecific System for Fish Larvae Feeding

Adande

Liady²,

Sossoukpe³

et al. 2017

ija

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“…Finally, dissolved oxygen values obtained indicates good conditions for aquatic life. According to IGBE (2005) and Bokossa et al (2014), the range from 4 to 6 mg/L located in the range of values obtained in this study characterises optimal conditions for aquatic life. The average conductivity values do not differ between sites.…”

Section: Discussionsupporting

confidence: 57%

“…Under these conditions, the parents seek only optimal and favourable conditions for the larvae development. Other factors like physico‐chemical parameters are considered in the literature to be favourable to aquatic life and choice of spawning sites (Bokossa et al, 2014; IGBE, 2005; Rutherford et al, 1989; Saucier et al, 1992) and to the fish distribution in the water (Aboua et al, 2010; Da Costa et al, 2000; Tanoh et al, 2013). Disrupting these parameters through anthropogenic activities would threaten the fish species biology in Lake Kivu and therefore the larvae development, then affect conservation.…”

Section: Discussionmentioning

confidence: 99%

Identification, location and characterisation of spawning grounds and nurseries in the littoral zone of Lake Kivu (eastern DR Congo)

Mazambi,

Micha,

Kaningini

et al. 2023

Afr J Ecol

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Worldwide biodiversity is on the brink of extinction following the complete disappearance of many forest and freshwater vertebrates. This disappearance is closely linked to the reduction and disturbance of habitats, which should instead benefit from special conservation. In the case of lake ecosystems, fish spawning grounds remain the most vulnerable. This study aims to identify, characterise and locate fish spawning and nursery sites in Lake Kivu for better conservation. Sixteen sampling sites were selected along the shoreline of the Bukavu sub‐basin. Physico‐chemical parameters were measured in situ, and fish were captured using multi‐mesh nets, identified and dissected, gonads observed and sexual maturity stages determined. Twenty‐five fish species were identified, but 17 of these use the selected sampling sites as spawning and/or nursery. Eleven spawning and nine nursery sites were identified and located. Physico‐chemical analyses showed that temperature (F = 2.124, p = 0.011), dissolved oxygen (F = 2.792, p < 0.001), depth (F = 5.915, p < 0.001) and transparency (F = 3.421, p = 0.004) were significantly different, which characterise each site and may be key factors in species distribution between spawning sites. Fish size–weight relationships indicate allometric growths. The results of this research contribute to empirical knowledge of fish spawning grounds.

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“…It had played an important role in organic matter mineralization, but also induced a good solubility and diffusion of gases such as oxygen in water (Belghiti et al 2013;Bokossa et al 2014b). The speed of oxygen diffusion depends for a large part on the contact area between air and water.…”

Section: Effect Of Rabbit Manure On Nutrient Dynamics and Water Qualitymentioning

confidence: 99%

Valorization of various sources of rabbit manure in agro-piscicultural system in Benin (West Africa): dynamics and effect of mineralization upon quality of fresh water

Adande

Bokossa

Liady

et al. 2017

Int J Recycl Org Waste Agricult

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Purpose Rising demand of fish generates various pressures on aquatic ecosystems, causing its deterioration and the loss of its biodiversity. With the aim of a better management and fish production in a salubrious environment, this study proposes the utilization of organic fertilizers from rabbit manure. Methods The treatments consisted of manure of rabbits fed with: manufactured diet (T 1 ), improved diet with Ipomea aquatic (T 2 ), improved diet with Elaeis guineensis (T 3 ), and improved diet with Panicum maximum (T 4 ). Indeed, experimental design was a completely randomized block design with three replications. 6 g in 10 L of water from the different manures from each diet was followed during 50 days. Various nutrients were measured. Results After the mineralization process, the best manure which released more nutrients was T 4 with measured proportions of N-NO 2 -, N-NO 3 -, N-NH 3 , P-PO 4 3-, Ca 2? , Mg 2? , K ? , and suspended matter being 0.06 ± 0.0, 0.38 ± 0.1, 0.85 ± 0.1, 8.27 ± 0.9, 12.11 ± 0.8, 4.47 ± 0.3, 3.02 ± 0.2, and 140.78 ± 18.6 mg/L, respectively. The highest content of phosphorus and nitrogen was recorded in T 4 and T 2 , respectively. The principal component analysis showed a positive correlation between P-PO 4 3-, Ca 2? , Mg 2? , MES, conductivity, and salinity during mineralization.Conclusion Manure from rabbits fed by an improved diet with P. maximum (T 4 ) was recommended for agro-piscicultural production system.

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Decomposition and Mineralization Effect of Various Sources of Pig Manure on Water Quality and Nutrients Availability for Agro-Fish System in Benin

Cited by 3 publications

References 21 publications

Effect of Different Doses of Rabbit Manure on the Abundance, Growth Rate and Production of Zooplankton in Plurispecific System for Fish Larvae Feeding

Effect of Different Doses of Rabbit Manure on the Abundance, Growth Rate and Production of Zooplankton in Plurispecific System for Fish Larvae Feeding

Identification, location and characterisation of spawning grounds and nurseries in the littoral zone of Lake Kivu (eastern DR Congo)

Valorization of various sources of rabbit manure in agro-piscicultural system in Benin (West Africa): dynamics and effect of mineralization upon quality of fresh water

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