Ingen täckning av plansilor samt alternativa täckningsmaterial
Silage is today a common feed for different animals. A general way of storing silage is in bunker silos covered with polyethylene film. The covering and uncovering is labour intensive and it is often difficult to get the silo properly sealed. Because of these reasons many American farmers leave thei...
| Autor principal: | |
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| Formato: | First cycle, G2E |
| Lenguaje: | sueco sueco |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | https://stud.epsilon.slu.se/196/ |
| _version_ | 1855570155479760896 |
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| author | Pettersson, Therese |
| author_browse | Pettersson, Therese |
| author_facet | Pettersson, Therese |
| author_sort | Pettersson, Therese |
| collection | Epsilon Archive for Student Projects |
| description | Silage is today a common feed for different animals. A general way of storing silage is in bunker silos covered with polyethylene film. The covering and uncovering is labour intensive and it is often difficult to get the silo properly sealed. Because of these reasons many American farmers leave their silos uncovered and accept the losses accompanied. One purpose of this study was therefore to examine if it sometimes can be justified to leave bunker silos uncovered. The results showed that leaving silos uncovered resulted in large dry matter losses and high pH-values and the conclusion was thus that uncovered silos are not acceptable. Besides that covering and uncovering with a plastic film is labour intensive the plastic cover has today become an environmental concern because it is difficult to recycle. Another purpose of the study was therefore to investigate some alternative edible covering materials that can come to replace the polyethylene film in the future. Many edible biodegradable coverings have been tested and the most promising are based on salt-starch, wheat protein and calcium caseinate. These showed good sealing properties and with further improvement they may replace the plastic film. |
| format | First cycle, G2E |
| id | RepoSLU196 |
| institution | Swedish University of Agricultural Sciences |
| language | swe swe |
| publishDate | 2009 |
| publishDateSort | 2009 |
| record_format | eprints |
| spelling | RepoSLU1962012-04-20T14:08:30Z https://stud.epsilon.slu.se/196/ Ingen täckning av plansilor samt alternativa täckningsmaterial Pettersson, Therese Feed processing and preservation Animal feeding Silage is today a common feed for different animals. A general way of storing silage is in bunker silos covered with polyethylene film. The covering and uncovering is labour intensive and it is often difficult to get the silo properly sealed. Because of these reasons many American farmers leave their silos uncovered and accept the losses accompanied. One purpose of this study was therefore to examine if it sometimes can be justified to leave bunker silos uncovered. The results showed that leaving silos uncovered resulted in large dry matter losses and high pH-values and the conclusion was thus that uncovered silos are not acceptable. Besides that covering and uncovering with a plastic film is labour intensive the plastic cover has today become an environmental concern because it is difficult to recycle. Another purpose of the study was therefore to investigate some alternative edible covering materials that can come to replace the polyethylene film in the future. Many edible biodegradable coverings have been tested and the most promising are based on salt-starch, wheat protein and calcium caseinate. These showed good sealing properties and with further improvement they may replace the plastic film. 2009-05-18 First cycle, G2E NonPeerReviewed application/pdf swe https://stud.epsilon.slu.se/196/2/petterson_t_090522.pdf Pettersson, Therese, 2009. Ingen täckning av plansilor samt alternativa täckningsmaterial. First cycle, G2E. 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-6-9 swe |
| spellingShingle | Feed processing and preservation Animal feeding Pettersson, Therese Ingen täckning av plansilor samt alternativa täckningsmaterial |
| title | Ingen täckning av plansilor samt alternativa täckningsmaterial |
| title_full | Ingen täckning av plansilor samt alternativa täckningsmaterial |
| title_fullStr | Ingen täckning av plansilor samt alternativa täckningsmaterial |
| title_full_unstemmed | Ingen täckning av plansilor samt alternativa täckningsmaterial |
| title_short | Ingen täckning av plansilor samt alternativa täckningsmaterial |
| title_sort | ingen täckning av plansilor samt alternativa täckningsmaterial |
| topic | Feed processing and preservation Animal feeding |
| url | https://stud.epsilon.slu.se/196/ https://stud.epsilon.slu.se/196/ |