Evaluation of the effect of protein levels and lipid sources on reproductive performance of Nile tilapia, Oreochromis niloticus | |
| Author | Nguyen Trong Hien |
| Call Number | AIT Thesis no. AQ-01-20 |
| Subject(s) | Nile tilapia Fishes--Reproduction Fishes--Spawning |
| Note | A Thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AQ-01-20 |
| Abstract | To evaluate the effects of protein and lipid sources on broodfish, reproductive performance and eggs' quality based on morphological and biochemical parameters of eggs were carried out. An experiment was with two protein levels (30 and 40%) and two lipid sources (6% of fish and soybean and a mixture of 3% of fish oil and soybean oil were established. The broodfish were evaluated on final weight and survival rate of males and females. Productive performance were evaluated on the total number of fish spawning, percentage of fish spawning, percentage of fish spawning twice and percentage of fish spawning three times. The morphological and quality of eggs were measured by using egg diameter, dry weight, protein and lipid content. The results showed that either protein or lipid did not influence on males and females survival. Sperm assessment was made by motility and concentration. However, Dietary protein levels affected male final weight, while female final weight was dependent on both dietary protein levels and lipid sources. The total of fish spawning, percentage of fish spawning, and percentage of fish spawning three times were not influenced by protein. However, percentage of fish spawning twice was affected by Lipid sources (6% of fish oil was higher than a mixture of 3% of fish oil and soybean oil). Fertilization and hatching of egg as well as fry survival were not influenced either by protein levels or lipid sources. Dietary contents (protein and lipid) did not increase protein and lipid content of egg. Eggs, sperm and fry quality was not influenced either protein levels and lipid sources |
| Year | 2001 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AQ-01-20 |
| 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 | Aquaculture and Aquatic Resources Management (AQ) |
| Chairperson(s) | Bart, Amrit;Yakupitiyage, Amararatne ; |
| Examination Committee(s) | Mair, Graham C.; |
| Scholarship Donor(s) | DANIDA ; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology,2001 |