| Author | Xie, Jianjun |
| Call Number | AIT Thesis no. AE-95-19 |
| Subject(s) | Flies
|
| Note | A thesis submitted in partial fulfilment of the requirements
for the Degree of Master of Science, School of Environment, Resources, and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Seven experimental trials were conducted to investigate alternative methods( i.e. without
animal manure) for commercial maggot production.These trials included: selection of suitable
ingredients for the preparation of maggot substrate ( trial 1,2&6 ); determination of the optimum
liming rate( trial 3); investigation of the bulk density of the substrate( trial 4); investigation on the
use of fish waste as nursing substrate (trial 5) and investigation on a commercial scale maggot
production on a pilot scale (trial 7 ).
The results showed that the replacement of cassava chips with 8 % banana peel, 0.8 %
mineral premix, 8 % rice bran and 8 % Leucaena leaves did not significantly affect average
maggot production, but rice bran decreased survival rate from 37.6 % to 27.5 % and Leucaena
leaves deterred maggot growth. The addition of 8 % molasses significantly increased maggot
production, but 8 % cafeteria waste highly decreased it. The results also showed that mixing 6
grams minced rice straw per hundred gram substrate raised maggot production by 10.7 times.
With the same ingredients, a disign of using 5 % fish waste for nursing instead of mixing it with
them increased maggot production by 35%. Increment of agricultural lime from 0 to 30 % had an
inverse effect on maggot production. The replacement of fish waste (15 %) in grow-out mixed
substrate with molasses decreased average maggot production from 6.0 g to 1.1 g I 100 g
substrate.
It is concluded that molasses is a suitable ingredient for maggot production and
increasing bulk density by using minced rice straw and nursing young maggots with fish waste
can highly increase maggot production both through promoting mean individual weight and
survival rate. |
| Year | 1995 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Yakuptiyage, Amararatne |
| Examination Committee(s) | Lin, C. K wei;Little, David. C. |
| Scholarship Donor(s) | The Asian Developmental Bank (ADB), Japan |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1995 |