| Author | Le Thanh Hung |
| Call Number | AIT Thesis no. AE-89-66 |
| Subject(s) | Fishes--Feeding and feeds
|
| Note | A Thesis summitted in partial fulfillment of the requirement
for the Degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The present study evaluated soybean meal as a complete
replacement of fish meal in a supplementary pelleted feed for
red tilapia reared in a manured system. The ' experiment was
conducted in outdoor tanks fertilized with buffalo manure and
inorganic feminizer.
Six diets were formulated, including a control diet
based on fish meal (diet 1 ) and four soybean based diets
supplemented with (a ) 0.25% methionine + 0.5% lysine + 3% oil
+ 3.!l1 dicalcium phosphate ยท (diet 2 ) ; (b) 3% oil + 3% dicalcium
phosphate (di et 3 ) ; (c ) 3% di calcium phosphate (diet 4); ( d )
3% dicalciurn phosphate + citric acid (diet 6). Soybean with out.
any supplementation was used in diet 5. There were seven
treatments in triplicates including six treatments with feed
input a nd a treatment without feed input.
Tb e results indicated that supplementation of soybean
with 3% dicalcinm phosphate let to a growth performance (SGR:
2. 7 8- 2. 90 9;;/day, daily weigh t gain approximate 0. 8g /day) and
efficient feed utilization (FCR: 1.5; PCE: 35% ) comparable to.
fish fed fish meal based diet. Low phosphorus availability
( 35% ) in soybean based diets is thus the major drawback of the
soybean based diets . . Complete replacement fisl1 m8al in t h e
manure d system with soybean meal without supplementation of of
calcium and phosphorus resulted in low growth performance
( SGR: 2. 29 and 0. 5g daily weight gain ) , less efficient in
feed utilization (FCR: 2.46 and PCE:21.40% ) and altered body
composition in term of carcass lipid and ash content as well
as low bone phosphorus. Citric acid supplementation had a
negative effect on fish growth. |
| Year | 1989 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| 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) | Yakupitiyage, Amararatne
; |
| Examination Committee(s) | Edwards, Peter ;Lin, Chang Kwei ; |
| Scholarship Donor(s) | The Government of Australia ; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1989 |