| Author | Duong Nhut Long |
| Call Number | AIT Thesis no. AE-95-21 |
| Subject(s) | Agricultural systems--Vietnam
|
| Note | A thesis submitted 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 | An integrated pig- fish farming system in which all the
production wastes from fattening pigs fed a diet available to
Vietnamese farmers was used to fertilise either a monoculture of
mixed sex tilapia ( Oreochromis niloticus ) or a polyculture of
mixed sex tilapia and hybrid catfish ( Clarias macrocephalus *
Clarias gariepinus ) was compared. The stocking rate of mixed sex
tilapia was 2 fish I m2 and hybrid catfish was 0.25 fish I m2 in
fish pond under two forms, monoculture ( Mixed sex tilapia only )
and policulture ( Mixed sex tilapia and hybrid catfish ) .
In both of treatments were applied by pig manure that
collected from the pig - house in west farms of aquaculture program
every day.
The performance of the fish, pigs was evalulated over a 90
days period. Pigs ( mean individual weight of 55.33 kg ) were fed a
diet of grower, village rice bran and water hyacinth ( Eichhornia
crassipes ) twice daily and maintain mean daily weight gain of
0.372 kg. Fish ( Mixed sex tilapia ) with mean initial weight of
34. 06 ± · O. 51 for both of treatments and fish ( Hybrid catfish )
with mean initial weight of ( P8 ) 22. 83 ± 0. 65, ( PlO ) 21. 77 ±
O. 27 and ( P12 ) 19 . 91 ± 0. 23 in treatment 1. After 3 months of
experiments, the mean final weights of Pigs 88.89 ± 3 .18 kg I pigs,
Tilapia was 68. 55 ± 0. 6 g in treatment 1 and 65. 07 ± 0. 6 g in
treatment 2 and hybrid catfish was 70. 65 ± 0 . 4 g in treatment 1.
Survival rate of mixed sex tilapia in treatment 1 was 92.75 ± 1.6 %
, 90 . 33 ± 2.3 % in treatment 2 and 89.33 ± 0.92 % to hybrid
catfish. Mean daily live weight gain of pigs were 0.372 kg I day,
daily weight gain ( g/day ) of tilapia were 0.38 ± 0.6 in treatment
1, 0.34 ± 0.1 in treatment 2 and hybrid catfish were 0.54 ± 0.19
g/day and specific growth rate ( % I day ) of tilapia was 0 . 78 ±
0.10 in treatmentl, 0.72 ± 0.15 in treatment 2 and hybrid catfish
was 1.32 ± 0.09, the net yield of mixed sex tilapia was 3246.6 kg I
ha I year obtained in treatment 1 ( + catfish ) and 3232.8 kg per
ha / year obtained in treatment 2 ( - catfish ) . The appearences of
tilapia fingerling increased valuable production in . the model. so
farmer's income was improved. After 3 months for producing the
production, farmers got high profits, net farms income was baht
8443 in Thailand and dong 3,354560 in Viet nam.
Based on the household financial calculation for farmer, the
efficiency of the model in integrated pig - fish farming systems
was considered, net farms income increased, the farmer should be
utilized technology and efficiency of the model to produce
productions in the further. |
| 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) | Little, D. C.
|
| Examination Committee(s) | Edwards, Peter;Demaine, H.;Hambrey, J. |
| Scholarship Donor(s) | Thai Government |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1995 |