Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus)
Growth performance of male-fish Nile tilapia (Oreochromis niloticus) fed with locally available protein sources was evaluated in an attempt to find alternative ingredients to replace fish meal (FM) in an experimental set up at the An Giang University in the Mekong Delta in Vietnam. In the four exper...
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| Formato: | Second cycle, A2E |
| Lenguaje: | sueco Inglés |
| Publicado: |
2016
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| Acceso en línea: | https://stud.epsilon.slu.se/8866/ |
| _version_ | 1855571420899180544 |
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| author | Gustavsson, Hedvig |
| author_browse | Gustavsson, Hedvig |
| author_facet | Gustavsson, Hedvig |
| author_sort | Gustavsson, Hedvig |
| collection | Epsilon Archive for Student Projects |
| description | Growth performance of male-fish Nile tilapia (Oreochromis niloticus) fed with locally available protein sources was evaluated in an attempt to find alternative ingredients to replace fish meal (FM) in an experimental set up at the An Giang University in the Mekong Delta in Vietnam. In the four experimental diets, 100 % of the FM was replaced with protein from golden apple snail meal (GAS), pangasius by-product meal (PBM), shrimp head meal (SHM) and blood meal (BM), respectively. A control diet contained FM as the main protein source. All diets were formulated containing a dietary crude protein level of 32 %. The experimental diets were prepared manually from dry feed at the experimental location. The ingredients were mixed before the feed were pelleted and sun-dried for two days. The fish were manually fed twice a day during the experimental period of 61 days. The growth parameters estimated in this study were: total weight gain (WG), specific growth rate (SGR), daily weight gain (DWG), feed conversion ratio (FCR), feed intake (FI), protein intake (PI) and survival rate (SR). The growth performance did not differ (P>0.05) between Nile tilapia fed with the control diet and the diet with PBM in any of the measured growth parameters. The experimental diets containing GAS, SHM and BM showed significant lower growth performance compared to the control and PBM diets. The results showed that pangasius by-product meal may replace fish meal by 100 % with no adverse effect on the growth performance. Total replacement of FM by GAS, SHM and BM resulted in low growth performance which could indicate that these ingredients can not totally replace FM in diet of Nile tilapia as these diets were prepared in this study. |
| format | Second cycle, A2E |
| id | RepoSLU8866 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2016 |
| publishDateSort | 2016 |
| record_format | eprints |
| spelling | RepoSLU88662016-03-02T13:47:53Z https://stud.epsilon.slu.se/8866/ Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) Gustavsson, Hedvig Animal physiology - Nutrition Animal physiology - Growth and development Growth performance of male-fish Nile tilapia (Oreochromis niloticus) fed with locally available protein sources was evaluated in an attempt to find alternative ingredients to replace fish meal (FM) in an experimental set up at the An Giang University in the Mekong Delta in Vietnam. In the four experimental diets, 100 % of the FM was replaced with protein from golden apple snail meal (GAS), pangasius by-product meal (PBM), shrimp head meal (SHM) and blood meal (BM), respectively. A control diet contained FM as the main protein source. All diets were formulated containing a dietary crude protein level of 32 %. The experimental diets were prepared manually from dry feed at the experimental location. The ingredients were mixed before the feed were pelleted and sun-dried for two days. The fish were manually fed twice a day during the experimental period of 61 days. The growth parameters estimated in this study were: total weight gain (WG), specific growth rate (SGR), daily weight gain (DWG), feed conversion ratio (FCR), feed intake (FI), protein intake (PI) and survival rate (SR). The growth performance did not differ (P>0.05) between Nile tilapia fed with the control diet and the diet with PBM in any of the measured growth parameters. The experimental diets containing GAS, SHM and BM showed significant lower growth performance compared to the control and PBM diets. The results showed that pangasius by-product meal may replace fish meal by 100 % with no adverse effect on the growth performance. Total replacement of FM by GAS, SHM and BM resulted in low growth performance which could indicate that these ingredients can not totally replace FM in diet of Nile tilapia as these diets were prepared in this study. I denna studie har lokalt tillgängliga proteinkällor utvärderats i foder till Nile tilapia (Oreochromis niloticus) i ett försök att ersätta fiskmjöl (FM). Studien var en tillväxtstudie och utfördes på An Giang Universitetet, lokaliserat nära Mekong Deltat i södra Vietnam. Fyra foderstater utvärderades genom att 100 % av fiskmjölet ersattes separat i vardera foderstat med protein från gyllene äppelsnigelmjöl (GÄS), pangasius biproduktsmjöl (PBM), räkmjöl (RM) och blodmjöl (BM). Kontrollfodret innehöll fiskmjöl som huvudproteinkälla och samtliga foderstater var formulerade till att innehålla totalt 32 % råprotein. Foderberedningen utfördes på plats, med manuell blandning av det torra foderingredienserna med efterföljande pelletering och fodret soltorkades sedan under två dagar. Fiskarna utfodrades dagligen, morgon och eftermiddag, under en försöksperiod på 61 dagar. Tillväxtparametrarna som studerades var: total viktökning (WG), specifik tillväxthastighet (SGR), daglig viktökning (DWG), foderomvandlingsförmåga (FCR), foderintag (FI), proteinintag (PI) och dödlighet (SR). Ingen skillnad (P>0.05) mellan studerade tillväxtparametrar kunde urskiljas hos fiskar utfodrade med kontrollfodret och fodret som innehöll PBM. Fiskar utfodrade med foderstaterna innehållande proteinkällorna GÄS, RM och BM, påvisade signifikant lägre tillväxt jämfört med kontroll- och PBM-fodret. Resultatet visade att 100 % av fiskmjölet kan ersättas med PBM, utan någon negativ inverkan på fiskens tillväxt. Att ersatta 100 % av FM med GÄS, RM och BM resulterade i låg tillväxt, vilket indikerar på att dessa proteinkällor inte kan ersätta FM med 100 % i foder till Nile tilapia. 2016-02-25 Second cycle, A2E NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/8866/7/gustavsson_h_160217.pdf Gustavsson, Hedvig, 2016. Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) : A study of growth performance in the Mekong Delta in Vietnam. Second cycle, A2E. Uppsala: (VH) > Dept. of Animal Nutrition and Management (until 231231) <https://stud.epsilon.slu.se/view/divisions/OID-650.html> urn:nbn:se:slu:epsilon-s-5186 eng |
| spellingShingle | Animal physiology - Nutrition Animal physiology - Growth and development Gustavsson, Hedvig Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) |
| title | Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) |
| title_full | Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) |
| title_fullStr | Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) |
| title_full_unstemmed | Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) |
| title_short | Locally available protein sources in diets of Nile tilapia (Oreochromis niloticus) |
| title_sort | locally available protein sources in diets of nile tilapia (oreochromis niloticus) |
| topic | Animal physiology - Nutrition Animal physiology - Growth and development |
| url | https://stud.epsilon.slu.se/8866/ https://stud.epsilon.slu.se/8866/ |