| Author | Naing, Tint |
| Call Number | AIT Thesis no.AE-90-44 |
| Subject(s) | Ducks--Feeding and feeds
|
| Note | A thesis submitted in partial fulfilment of the requirements of the degree of Master of Science, School of Environment, and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The primary aim of the study was to investigate the
possibility of using corn or sorghum as substitutes for ricebran,
the current supplementary feed used in the Northeast. of Thailand
in scavenging Muscovy duck production systems. Subsidiary aims
were to compare the growth performance of Muscovy ducks and .Pekin
ducks using these supplementary feeds in the same scavenging
system and to study the effects of duck wast.es on fish growth.
Two inter-related experiments were carried out
simultaneously . In the first experiment., ducks were freely
allowed to scavenge during daytime and fed ricebran , corn and
sorghum in the evening for two months. Duck growth and feed
consumption were recorded.
Waste collected at night from the different feed
and species group were used as input to fish tanks in the
second experiment. , the design of which also included
2
stocking rates; 30 , 40 and 50 ducks/200 m fish pond.
supplement
jn the
three duck
Although mean initial body weight of Muscovy duck (699 gm )
was lower than that of Pekin duck (802 gm ), no significant
difference between the mean final body weight of Muscovy and
Pekin duck (1655 and 1590 gm) was recorded. Daily feed input {1 27
gm/duck/day ) and feed conversion ratio (4.8 ) of Muscovy duck were
lower than that of Pekin duck {173 gm/duck/day and 9.3
respectively). Thorough scavenging of Muscovy duck was also
observed.
Highest mean daily weight gain of duel< {21. 3 gm/duck/day)
was observed in ricebran fed ducks followed by that of corn (14.3
gm/duck/day ) and that of sorghum (11. 3 gm/duck/day).
Fish growth did not differ significantly with different duck
waste.
For Muscovy duck/fish production in Northeast Thailand,
strategic feeding based on the availability of natural feed and
marketing season is discussed. Supplementary feed input to the
fish subsystem is also suggested to be based on the fluctuation
of duck subsystem waste according to the season. |
| Year | 1990 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Gartner, Joseph A |
| Examination Committee(s) | Little, David C. ;Waibel, Hermann ;Yakupitiyage, Amararatne |
| Scholarship Donor(s) | The government of Australia |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1990 |