English

Comlan Zougou Tovignon Gilbert,Pamo Tedonkeng Etienne,Christol Ngansop Nono Frédéric,Ndzani Matumuini Férence,Valery Mboko Arsène,Miegoue Emile,Ondo Joseph-Privat,Mounioko Franck,Boukila Benoit,Clément Obame Engonga Louis,Juani Mekossangoye Ndounga Taffarel,Ibrahim Toure Abdourhamane,Sima Obiang Cédric,Divine Moussounda Gassama Kady,Tendonkeng Fernand

doi:10.5897/ajb2020.17204

Abstract

The objective of this study was to compare maggots’ production in different substrates following an experimental design of six treatments (S1, 1000 g of brewery wet grains - BWG; S2, 900 g of BWG and 100 g of blood; S3, 1000 g of dung; S4, 900 g of dung and 100 g of blood; S5, 1000 g of rumen content; and S6, 900 g of rumen content and 100 g of blood) repeated trice. 121 flies were collected and identified and 5 days after putting in place the experimental set up, larvae were collected. 6 families of flies, namely Calliphoridae (50.41%), Muscidae (18.18%), Sacrophagidae (12.40%), Strationomiydae (8.26%), Piophilidae (5.79%) and Syrphidae (4.96%) were identified. The highest fresh biomass (41.67±3.51 g) was obtained with S6 and S2 (21.33±15.63 g). The mean highest length (2.62±1.01 cm) was obtained with S3. The highest dry matter (DM) (23.89±2.90%) was obtained with S2 and the lowest DM with S6 (13.56±2.90%). The lowest values of crude proteins (CP) were obtained in S4 (32.82±10.05%) and S6 (33.82±0.18%). Highest fats contents were obtained in S2 (43.93±1.46%) and S4 (26.99±1.12%). In short, S2 can be used for maggots’ production. Key words: Identification, flies, production, larvae, insect breeding, bovine blood.

Highlights

In Africa, high costs of dietary protein sources constitute a real challenge on livestock development (Bouafou, 2000)
The objective of this study was to compare maggots’ production in different substrates following an experimental design of six treatments (S1, 1000 g of brewery wet grains - BWG; S2, 900 g of BWG and 100 g of blood; S3, 1000 g of dung; S4, 900 g of dung and 100 g of blood; S5, 1000 g of rumen content; and S6, 900 g of rumen content and 100 g of blood) repeated trice. 121 flies were collected and identified and 5 days after putting in place the experimental set up, larvae were collected. 6 families of flies, namely Calliphoridae (50.41%), Muscidae (18.18%), Sacrophagidae (12.40%), Strationomiydae (8.26%), Piophilidae (5.79%) and Syrphidae (4.96%) were identified
Considering the high cost and the scarcity of protein sources commonly used in livestock feeding and in local markets, it seems that getting the right substrates of maggots’ production can contribute in the reduction of animal production costs

Summary

INTRODUCTION

In Africa, high costs of dietary protein sources constitute a real challenge on livestock development (Bouafou, 2000). 24 h after putting in place the experimental set up, basins remained open to allow the flies to lay eggs on the substrates, they were covered using lids (Figure 1). These lids had small aeration holes made with the help of a nail. Maggots fleeing the sunlight fall to the bottom of the receptacle and are collected This method is only for the substrate S2 (BWG + blood). (2) The second method is the manual sorting It consists of soaking the substrates in hot water (60°C) in order to kill the maggots. In case of significant differences between the treatments, separation of means was done using the Waller Duncan test at 5% significant level (Steel and Torrie, 1980)

RESULTS

DISCUSSION

Conclusion