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Evaluation of harvesting processes for alfalfa with the aim of attaining a high proportion of leaves as a high protein feed for monogastric animals
Authors: Jan Maxa, Peter Liebhardt, Stefan Thurner
Identifier: CSBE21273
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Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » Regular Sessions
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Description: Legume leaves from alfalfa have a great potential as feed protein due to their high protein content as well as their essential amino acid content. In organic feeding of monogastric animals such as pigs, essential amino acids are needed and together with feeding of roughage can generate additional animal welfare benefits. Therefore the main aim of this study was to analyse technical approaches to harvest legume leaves. Moreover a yield of alfalfa harvested at different height was evaluated. The analyses of technical approaches to harvest legume leaves were conducted in four field trials over the years 2017-2019 and included i) the method of stripping leaves directly from plants and harvesting steams thereafter ii) the method of harvesting the complete plant and separating the leaves from stems after hot or warm air drying using sieved method. Alternatively to these harvesting methods, analysis of alfalfa yield at different height was furthermore conducted over four harvests in 2019 using manually harvested plants at the total height of 60 %, 70 % and 80 %. The first results shoved higher total yields of alfalfa harvested by method of complete plants compare to separation method of stripping leaves directly from plants and harvesting steams thereafter. Furthermore, upper 30 % of the plant contained approximately 13 % of protein more compare to the rest alfalfa. Cutting alfalfa at height of 70 % can be seen as an alternative method to separation of leaves and stems in order to obtain high protein feed.
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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Plant Systems & Posteharvest Technology 1
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Type: Text.Abstract
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Publication type: Presentation
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Language 1: en
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Rights: Canadian Society for Bioengineering
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DOI:
Description: Legume leaves from alfalfa have a great potential as feed protein due to their high protein content as well as their essential amino acid content. In organic feeding of monogastric animals such as pigs, essential amino acids are needed and together with feeding of roughage can generate additional animal welfare benefits. Therefore the main aim of this study was to analyse technical approaches to harvest legume leaves. Moreover a yield of alfalfa harvested at different height was evaluated. The analyses of technical approaches to harvest legume leaves were conducted in four field trials over the years 2017-2019 and included i) the method of stripping leaves directly from plants and harvesting steams thereafter ii) the method of harvesting the complete plant and separating the leaves from stems after hot or warm air drying using sieved method. Alternatively to these harvesting methods, analysis of alfalfa yield at different height was furthermore conducted over four harvests in 2019 using manually harvested plants at the total height of 60 %, 70 % and 80 %. The first results shoved higher total yields of alfalfa harvested by method of complete plants compare to separation method of stripping leaves directly from plants and harvesting steams thereafter. Furthermore, upper 30 % of the plant contained approximately 13 % of protein more compare to the rest alfalfa. Cutting alfalfa at height of 70 % can be seen as an alternative method to separation of leaves and stems in order to obtain high protein feed.
Keywords:
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2021-06-11
Technical field:
Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Plant Systems & Posteharvest Technology 1
Other information:
Type: Text.Abstract
Format:
Publication type: Presentation
Source:
Relation:
Coverage:
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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