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Effects of fishmeal quality on growth performance, protein digestibility andtrypsin gene expression in pacific white shrimp (Litopenaeus vannamei) |
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| รหัสดีโอไอ | |
| Creator | 1. Chutima Tantikitti 2. Duangrat Chookird 3. Amornrat Phongdara |
| Title | Effects of fishmeal quality on growth performance, protein digestibility andtrypsin gene expression in pacific white shrimp (Litopenaeus vannamei) |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2559 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 38 |
| Journal No. | 1 |
| Page no. | 73-82 |
| Keyword | fishmeal quality,protein digestibility,growth,Litopenaeus vannamei,trypsin gene |
| ISSN | 0125-3395 |
| Abstract | Fishmeal quality is of great importance for production of aquatic animals particularly shrimp; however it varies widelydepending on raw materials and processing methods. A seven week feeding trial was conducted using five diets to examineeffects of fishmeal quality on growth performance, protein digestibility and expression of gene regulating trypsin inLitopenaeus vannamei. Each test diet was fed four times daily to four groups of shrimp with an average initial weight of 2.2 gshrimp-1. The shrimp fed S1-premium grade fish meal (S1-PGFM) diet attained the highest weight gain, specific growth ratewith the best feed conversion ratio (FCR) and protein utilization efficiency. Growth of shrimp fed S2-PGFM, grade 1 FM andgrade 2 FM containing diets was inferior to those of S1-PGFM fed group. The imported FM diet fed group showed the slowestgrowth and feed utilization efficiency. FCR of shrimp fed grade 2 FM and imported FM was significantly the poorest (p<0.05).In-vitro protein digestibility using crude enzyme extract from shrimp fed reciprocal diet was not significantly differentamong treatments but in-vivo protein digestibility of the S1-PGFM fed group was the highest (92.06+0.42%) in concordancewith the highest trypsin gene expression. |
