| Author | Pornpimon Baouthong |
| Call Number | AIT Thesis no. AE-95-23 |
| Subject(s) | Shrimps--Feeding and feeds
|
| Note | A Thesis submitted in partial fulfillment of the requirements for the Degree of
Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | A survey was conducted to gather information on the existing feed management
practices of shrimp farms in Ranot District, Songkhla, Southern Thailand. The results showed
that there was a great variation in feeding practices in the study area. While well-experienced
farmers venture with novel feeding practices, new recruits to the industry follow the
recommendations of feed companies.
Two feeding trials were conducted to determine the interactive effect of in-practice
feeding rates, feeding frequencies and feeding time on shrimp yield. A factorial design with
three levels of feeding rates (4, 6 and 8% body weight day-1) and two levels of feeding
frequency (4 and 6 times a day) was used in the trial 1. The experiment was conducted for 6
weeks in 2.25 m2 hapas installed in a 0.1 ha earthen pond. The results showed that feeding at
a rate of 6% BW day-1 divided into 4 meals was optimal for the growth of shrimp of 2-3 g in
initial body weight.
Trial 2 examined the effect of feeding shrimp at day-time, night-time, or both day and
night time on their growth and body composition. The total daily ration (6% Bw day-1) for
each feeding duration was divided into 4, 5, and 6 meals. The experiment was conducted in a
saline water system comprising thirty six 1 m3 circular tanks. The results indicated that neither
employed feeding frequencies nor feeding time made significant differences in growth of
shrimp. The feeding time, however, significantly effected the body composition of shrimp.
There was no interaction between feeding rate, feeding frequency and feeding time on shrimp
growth. |
| 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) | Yakupitiyage, Amararatne; |
| Examination Committee(s) | Lin, Chang Kwei;Hambrey, John Bernard; |
| Scholarship Donor(s) | United Kingdom; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1995 |