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| Krawutschke, Manuel; Weiher, Nina; Gierus, Martin; Thaysen, Johannes; Taube, Friedhelm. |
| Ensilage of red clover results in lower concentrations of non-protein nitrogen compared to other forage legumes. It is assumed that the polyphenol oxidase (PPO) activity in red clover is related to this effect. Therefore, a laboratory ensiling trial was carried out to quantify the changes in crude protein (CP) fractions during the ensiling process using the Cornell Net Carbohydrate and Protein System. At four cutting dates, fresh, wilted and ensiled herbage of three red clover genotypes and white clover grown in two systems (with and without mechanical stress) was sampled. The specific PPO activity was measured photometrically in fresh leaves of the plants. Concentrations of fraction A increased from 130-197 g/kg CP to 372-544 g/kg CP during the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops. |
| Ano: 2011 |
URL: http://orgprints.org/17345/3/Krawutschke_17345.pdf |
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| Weiher, Nina; Tschigg, Sylvia; Schätzl, Robert; Wolf, Lukas; Gain, Anja; Pfeiffer, Tabea; Miersch, Martin; Mayus, Martina. |
| Ziel des Verbundprojektes war die Ausweitung und Verbesserung des Anbaus und der Verarbeitung von Sojabohnen in Deutschland. Hierfür wurde ein bundesweites Netzwerk von Demonstrationsbetrieben aufgebaut, das dem Wissenstransfer zwischen Forschung, Beratung und Praxis diente. Die Arbeiten im Projekt waren erfolgreich, sodass nicht nur das Interesse, sondern auch der Sojaanbau gesteigert werden konnte. Die Bayerische Landesanstalt für Landwirtschaft (LfL) war für die Gesamtkoordination des Verbundprojekts und das Datenmanagement verantwortlich. In das Netzwerk wurden insgesamt 146 Betriebe mit konventioneller und ökologischer Bewirtschaftung aus elf Bundesländern eingebunden. Auf diesen fanden zahlreiche Wissenstransfermaßnahme zwischen Forschung, Beratung... |
| Tipo: Report |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Feeding and growth Education; Extension and communication Produce chain management. |
| Ano: 2018 |
URL: http://orgprints.org/35051/1/35051-14EPS001-004-lfl-bayern-schaetzl-2018-demonetzwerk-sojabohnen.pdf |
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| Weiher, Nina; Krawutschke, Manuel; Gierus, Martin; Taube, Friedhelm. |
| Increasing protein quality of forages in ruminant nutrition may contribute to reduce nitrogen losses in specialized dairy farms in Europe. Red clover is known to have high polyphenol oxidase (PPO) activity among forage legumes. The enzyme oxidizes phenols to quinones. These highly reactive quinones form stabilized quinone-protein-complexes, protecting protein from fast degradation. The objective of this study was to investigate the effect of the specific PPO activity on the protein fractions of twelve red clover genotypes in two management systems (without and with mechanical stress) in pure red clover swards. The results showed that genotype seem to be of minor importance compared to the variation in PPO activity induced by mechanical stress and... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops. |
| Ano: 2011 |
URL: http://orgprints.org/17397/3/Weiher_17397.pdf |
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