Table 8.
Cost of feeds used for rearing Gryllus madagascarensis.
| Ingredient Combination | Cost per kg (Malagasy Ariary) | Quantity/kg | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| CFA | CFB | CFC | CFD | CFE | CFF | CFG | CFH | CFI | CFJ | ||
| Cowpea bran | 1000.00 | 0.00 | 0.00 | 0.40 | 0.00 | 0.10 | 0.20 | 0.20 | 0.20 | 0.00 | 0.00 |
| Wheat bran | 1000.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.20 | 0.00 | 0.05 | 0.00 | 0.99 | 0.33 |
| Maize bran | 1000.00 | 0.00 | 0.00 | 0.20 | 0.30 | 0.20 | 0.00 | 0.10 | 0.00 | 0.00 | 0.33 |
| Rice bran | 1000.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Nelly bean bran | 1000.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.20 | 0.10 | 0.10 | 0.00 | 0.00 | 0.00 |
| Cassava tuber bran | 1000.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 |
| Cassava leaves powder | 1000.00 | 0.00 | 0.98 | 0.00 | 0.00 | 0.20 | 0.40 | 0.15 | 0.30 | 0.00 | 0.00 |
| Soybean meal | 4500.00 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Maize | 3000.00 | 0.25 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Wheat pollard | 1200.00 | 0.22 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Rice polish | 900.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Tropical African Morning Glory powder | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.20 | 0.30 | 0.20 | 0.10 | 0.00 | 0.00 |
| Silver leaf desmodium powder | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Gallant soldier powder | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.30 | 0.00 | 0.00 |
| Taro tops powder | 1000.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 |
| Sugar | 7500 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Baking powder | 8650.50 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 |
| Bergafat | 12,500.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Lysine amino acid | 13,500.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| MDCP | 18,000.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Methionine | 37,500.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Vitamin mineral premix | 13,500.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Lime | 4000.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Fish meal | 4500.00 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Cost per Kg (MGA) | 3800.00 | 1066.50 | 800.00 | 900.00 | 1000 | 700.00 | 700.00 | 600.00 | 1076.50 | 1076.50 | |
| Cost per Kg (USD) | 0.893 | 0.251 | 0.188 | 0.212 | 0.235 | 0.165 | 0.165 | 0.141 | 0.253 | 0.253 | |
The results are expressed on a dry matter (DM) basis. CFA—16% soybean meal + 22% a mixture of fine wheat and wheat flour + 15% broken rice+ 25% maize + 5% bergafats + 1% lysine amino acid +1% DCP + 1% methionine + 1% vitamin-mineral premix + 1% lime + 15% fish meal; CFB—98% cassava leaves + 1% sugar + 1% baking powder; CFC—20% silver leaf desmodium + 20% wheat bran + 40% cowpea bran + 20% maize bran; CFD—30% tropical African morning glory, 30% maize bran, 20% navy bean bran, 10% maize germ, 10% rice bran; CFE—20% tropical African morning glory, CFF—30% tropical African morning glory + 40% cassava leaves powder + 20% cowpea bran + 10% of navy bean bran; CFG—20% tropical African morning glory, 20% gallant soldier, 15% cassava leaves, 20% cowpea bran, 10% navy bean bran, 10% maize bran, 5% wheat bran; CFH—30% cassava leaves + gallant soldier + 20% cowpea bran + 10% tropical African morning glory + 10% taro leaves; CFI—99% wheat bran and 1% baking powder; CFJ—33% maize bran, 33% cassava tuber bran, 33% wheat bran, 1% baking powder; DCP is dicalcium phosphate. Where 0 is indicated in each column, the ingredient was not factored in formulating the feed. Note: 1 USD (US dollar) = 4250 MGA during the study period (2023/2024).