Publikationen
2022
Wilmes, R.; Waldhof, G.; Breunig, P.
Can digital farming technologies enhance the willingness to buy products from current farming systems? Artikel Open Access
In: 2022.
Abstract | BibTeX | Schlagwörter: Ackerbau, Digitalisation, Direct Marketing, Direktvermarktung, Ertragsmodelle, Sustainability | Links:
@article{nokey,
title = {Can digital farming technologies enhance the willingness to buy products from current farming systems?},
author = {R. Wilmes and G. Waldhof and P. Breunig },
editor = {Plos One},
url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0277731},
doi = {https://doi.org/10.1371/journal.pone.0277731},
year = {2022},
date = {2022-11-14},
urldate = {2022-11-14},
abstract = {While current global agriculture allows for efficient food production, it brings environmental disadvantages, which resulted in a lack of public acceptance. Digital technologies (e.g., technologies that enable precision agriculture) have been suggested as a potential solution to reconcile environmental sustainability and yield increases. By embedding digital technologies into holistic farming system visualized through mission statements, this study tests the effect of different intensities of digitization, as well as environmental arguments on the willingness to buy food produced by farms in Germany. We use a 4 x 4 repeated measure experimental design surveying a representative sample of 2,020 German citizens recruited online. Our research framework captures the farming system (comparing low intensity of digitalization for a small or organic farm and low, medium, and high intensity of digitalization for large or conventional farms) and environmental arguments (comparing no arguments, and altruistic, egoistic, and biospheric arguments). The results show a negative effect of digital technologies on willingness to buy. However, this relationship turns positive when introducing environmental arguments. Furthermore, there is a moderation effect for respondents’ attitudes towards technologies that varies depending on whether altruistic, egoistic, or biospheric concerns were stated. The results indicate that digital technologies can increase willingness to buy products from both large and conventional farms, but not to the level of small farms and organic farms.},
keywords = {Ackerbau, Digitalisation, Direct Marketing, Direktvermarktung, Ertragsmodelle, Sustainability},
pubstate = {published},
tppubtype = {article}
}
While current global agriculture allows for efficient food production, it brings environmental disadvantages, which resulted in a lack of public acceptance. Digital technologies (e.g., technologies that enable precision agriculture) have been suggested as a potential solution to reconcile environmental sustainability and yield increases. By embedding digital technologies into holistic farming system visualized through mission statements, this study tests the effect of different intensities of digitization, as well as environmental arguments on the willingness to buy food produced by farms in Germany. We use a 4 x 4 repeated measure experimental design surveying a representative sample of 2,020 German citizens recruited online. Our research framework captures the farming system (comparing low intensity of digitalization for a small or organic farm and low, medium, and high intensity of digitalization for large or conventional farms) and environmental arguments (comparing no arguments, and altruistic, egoistic, and biospheric arguments). The results show a negative effect of digital technologies on willingness to buy. However, this relationship turns positive when introducing environmental arguments. Furthermore, there is a moderation effect for respondents’ attitudes towards technologies that varies depending on whether altruistic, egoistic, or biospheric concerns were stated. The results indicate that digital technologies can increase willingness to buy products from both large and conventional farms, but not to the level of small farms and organic farms.
Gerhardt, C.; Breunig, P.
Framework for the Digital Transformation of the Agricultural Ecosystem Buchkapitel
In: Berlin Springer, Heidelberg (Hrsg.): Springer, 2022.
BibTeX | Schlagwörter: Digitalisation, Ertragsmodelle | Links:
@inbook{nokey,
title = {Framework for the Digital Transformation of the Agricultural Ecosystem},
author = {C. Gerhardt and P. Breunig },
editor = {Springer, Berlin, Heidelberg },
doi = {https://doi.org/10.1007/978-3-662-64378-5_2},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Handbook Digital Farming},
publisher = {Springer},
keywords = {Digitalisation, Ertragsmodelle},
pubstate = {published},
tppubtype = {inbook}
}
2021
Heine, P.; Zeiler, E.; Sauter-Louis, C.; Erhard, M.; Göttl, M.; Kammer, M.; Scholz, S.; Versen, F.; Hümmer, C.; Rauch, E.
Analyse der Auswirkung unterschiedlicher ökologischer Milchviehhaltungssysteme in Bayern auf standardisiert erhobene Werte zu Milchleistung, Fortpflanzungsgeschehen und Stoffwechselgesundheit Artikel Open Access
In: Berliner und Münchener Tierärztliche Wochenschrift, Bd. 134, S. 1-14, 2021, ISSN: 1439-0299 .
Abstract | BibTeX | Schlagwörter: Ertragsmodelle, milk yield, Viehhaltung | Links:
@article{nokey,
title = {Analyse der Auswirkung unterschiedlicher \"{o}kologischer Milchviehhaltungssysteme in Bayern auf standardisiert erhobene Werte zu Milchleistung, Fortpflanzungsgeschehen und Stoffwechselgesundheit},
author = {P. Heine and E. Zeiler and C. Sauter-Louis and M. Erhard and M. G\"{o}ttl and M. Kammer and S. Scholz and F. Versen and C. H\"{u}mmer and E. Rauch },
editor = {Schl\"{u}tersche Fachmedien GmbH},
url = {https://www.vetline.de/analyse-der-auswirkung-unterschiedlicher-oekologischer-milchviehhaltungssysteme-in-bayern-auf},
doi = {https://doi.org/10.2376/1439-0299-2020-41},
issn = {1439-0299 },
year = {2021},
date = {2021-09-07},
urldate = {2021-09-07},
journal = {Berliner und M\"{u}nchener Tier\"{a}rztliche Wochenschrift},
volume = {134},
pages = {1-14},
abstract = {Ziel dieser Studie war, standardisiert erhobene Milchleistungs-, Stoffwechsel und Parameter zum Fortpflanzungsgeschehen in der \"{o}kologischen Milchviehhaltung auf m\"{o}gliche Zusammenh\"{a}nge zu verschiedenen Haltungssystemen zu pr\"{u}fen. Hierf\"{u}r standen Daten der elfmal j\"{a}hrlich stattfinden Milchleistungspr\"{u}fung (MLP) des Landeskuratoriums der Erzeugerringe f\"{u}r tierische Veredelung in Bayern e. V. (LKV) f\"{u}r den Zeitraum 2015\textendash2017 zur Verf\"{u}gung. Untersucht wurden 56 \"{o}kologische Milchviehbetriebe des Verbandes Naturland im bayerischen Alpenvorraum [31 Anbindehaltungsbetriebe mit Weide (AH+W), 18 Laufstallbetriebe mit Weide (LS+W), 7 Laufstallbetriebe mit Auslauf (LS+A)]. Verglichen wurden Herdengr\"{o}\sse, Milchleistung und Fett-Eiwei\ss-Quotient, Non-Return-Rate 90, Rastzeit und Zwischenkalbezeit sowie der Anteil der K\"{u}he mit Ketoserisiko. F\"{u}r das Jahr 2017 lagen Informationen bez\"{u}glich der Zusammensetzung des Grundfutters vor, weshalb der Fokus auf diesem Jahr lag. Im Sommer war die errechnete Energiedichte des Grundfutters zwischen den Haltungssystemen ann\"{a}hernd gleich, im Winter dagegen lag die errechnete Energiedichte des Grundfutters in AH+W signifikant unter jener in LS+W und LS+A. Die LS+A-Betriebe konnten eine signifikant h\"{o}here Milchleistung (p \< 0,001) sowie im Jahr 2017 einen geringeren Anteil ketosegef\"{a}hrdeter K\"{u}he vorweisen. K\"{u}he in LS+W- und LS+A-Betrieben hatten gegen\"{u}ber AH+W-Betrieben eine k\"{u}rzere Zwischenkalbezeit. Aus den Ergebnissen kann abgeleitet werden, dass Laufstallsysteme ohne Weide intensiver wirtschaften und somit bessere Leistungen erzielen, als Betriebe, deren K\"{u}he im Sommer einen \"{u}berwiegenden Teil der Ration auf der Weide aufnehmen. Die vorliegende Studie konnte Zusammenh\"{a}nge zwischen verschiedenen Haltungssystemen in der \"{o}kologischen Milchviehhaltung und der Milchleistung, dem Ketoserisiko sowie Parametern zum Fortpflanzungsgeschehen aufzeigen.
The aim of this study was to examine standardized milk yield, metabolism and fertility parameters in organic dairy farming for correlations to different husbandry systems. For this purpose, data related to milk yielding provided eleven times a year by the “Landeskuratorium der Erzeugerringe f\"{u}r tierische Veredelung in Bayern e. V. (LKV)” for the period 2015\textendash2017 were available. Fifty-six organic dairy farms of the Naturland association in the Bavarian Alpine foothills [31 Tie-stall farms with grazing (AH+W), 18 free stall housing systems with grazing (LS+W), 7 free stall housing systems with free-range area (LS+A)] were analysed. Herd size, milk yield and milk constituents, non-return rate at 90 days, calving to first-service interval and calving interval, as well as the proportion of cows at risk of ketosis were compared. Focus of the study was the year 2017, as data of the staple feed was available for this year. The calculated energy density of the staple feed in summer was similar between the housing systems, but in winter it was lower for AH+W farms than for LS+W and LS+A. LS+A farms showed significantly higher milk yield (p \< 0.001) and a lower proportion of cows at risk of ketosis in 2017. Compared to AH+W farms, cows in LS+W and LS+A farms had a shorter calving interval. It can be deduced that free stall housing systems without grazing are more intensive and thus achieve better performance than farms whose cows consume a major part of the ration grazing in summer. In conclusion, the present study was able to show correlations between different housing systems in organic dairy farming and milk yield, ketosis risk and fertility.},
keywords = {Ertragsmodelle, milk yield, Viehhaltung},
pubstate = {published},
tppubtype = {article}
}
Ziel dieser Studie war, standardisiert erhobene Milchleistungs-, Stoffwechsel und Parameter zum Fortpflanzungsgeschehen in der ökologischen Milchviehhaltung auf mögliche Zusammenhänge zu verschiedenen Haltungssystemen zu prüfen. Hierfür standen Daten der elfmal jährlich stattfinden Milchleistungsprüfung (MLP) des Landeskuratoriums der Erzeugerringe für tierische Veredelung in Bayern e. V. (LKV) für den Zeitraum 2015–2017 zur Verfügung. Untersucht wurden 56 ökologische Milchviehbetriebe des Verbandes Naturland im bayerischen Alpenvorraum [31 Anbindehaltungsbetriebe mit Weide (AH+W), 18 Laufstallbetriebe mit Weide (LS+W), 7 Laufstallbetriebe mit Auslauf (LS+A)]. Verglichen wurden Herdengröße, Milchleistung und Fett-Eiweiß-Quotient, Non-Return-Rate 90, Rastzeit und Zwischenkalbezeit sowie der Anteil der Kühe mit Ketoserisiko. Für das Jahr 2017 lagen Informationen bezüglich der Zusammensetzung des Grundfutters vor, weshalb der Fokus auf diesem Jahr lag. Im Sommer war die errechnete Energiedichte des Grundfutters zwischen den Haltungssystemen annähernd gleich, im Winter dagegen lag die errechnete Energiedichte des Grundfutters in AH+W signifikant unter jener in LS+W und LS+A. Die LS+A-Betriebe konnten eine signifikant höhere Milchleistung (p < 0,001) sowie im Jahr 2017 einen geringeren Anteil ketosegefährdeter Kühe vorweisen. Kühe in LS+W- und LS+A-Betrieben hatten gegenüber AH+W-Betrieben eine kürzere Zwischenkalbezeit. Aus den Ergebnissen kann abgeleitet werden, dass Laufstallsysteme ohne Weide intensiver wirtschaften und somit bessere Leistungen erzielen, als Betriebe, deren Kühe im Sommer einen überwiegenden Teil der Ration auf der Weide aufnehmen. Die vorliegende Studie konnte Zusammenhänge zwischen verschiedenen Haltungssystemen in der ökologischen Milchviehhaltung und der Milchleistung, dem Ketoserisiko sowie Parametern zum Fortpflanzungsgeschehen aufzeigen.
The aim of this study was to examine standardized milk yield, metabolism and fertility parameters in organic dairy farming for correlations to different husbandry systems. For this purpose, data related to milk yielding provided eleven times a year by the “Landeskuratorium der Erzeugerringe für tierische Veredelung in Bayern e. V. (LKV)” for the period 2015–2017 were available. Fifty-six organic dairy farms of the Naturland association in the Bavarian Alpine foothills [31 Tie-stall farms with grazing (AH+W), 18 free stall housing systems with grazing (LS+W), 7 free stall housing systems with free-range area (LS+A)] were analysed. Herd size, milk yield and milk constituents, non-return rate at 90 days, calving to first-service interval and calving interval, as well as the proportion of cows at risk of ketosis were compared. Focus of the study was the year 2017, as data of the staple feed was available for this year. The calculated energy density of the staple feed in summer was similar between the housing systems, but in winter it was lower for AH+W farms than for LS+W and LS+A. LS+A farms showed significantly higher milk yield (p < 0.001) and a lower proportion of cows at risk of ketosis in 2017. Compared to AH+W farms, cows in LS+W and LS+A farms had a shorter calving interval. It can be deduced that free stall housing systems without grazing are more intensive and thus achieve better performance than farms whose cows consume a major part of the ration grazing in summer. In conclusion, the present study was able to show correlations between different housing systems in organic dairy farming and milk yield, ketosis risk and fertility.
The aim of this study was to examine standardized milk yield, metabolism and fertility parameters in organic dairy farming for correlations to different husbandry systems. For this purpose, data related to milk yielding provided eleven times a year by the “Landeskuratorium der Erzeugerringe für tierische Veredelung in Bayern e. V. (LKV)” for the period 2015–2017 were available. Fifty-six organic dairy farms of the Naturland association in the Bavarian Alpine foothills [31 Tie-stall farms with grazing (AH+W), 18 free stall housing systems with grazing (LS+W), 7 free stall housing systems with free-range area (LS+A)] were analysed. Herd size, milk yield and milk constituents, non-return rate at 90 days, calving to first-service interval and calving interval, as well as the proportion of cows at risk of ketosis were compared. Focus of the study was the year 2017, as data of the staple feed was available for this year. The calculated energy density of the staple feed in summer was similar between the housing systems, but in winter it was lower for AH+W farms than for LS+W and LS+A. LS+A farms showed significantly higher milk yield (p < 0.001) and a lower proportion of cows at risk of ketosis in 2017. Compared to AH+W farms, cows in LS+W and LS+A farms had a shorter calving interval. It can be deduced that free stall housing systems without grazing are more intensive and thus achieve better performance than farms whose cows consume a major part of the ration grazing in summer. In conclusion, the present study was able to show correlations between different housing systems in organic dairy farming and milk yield, ketosis risk and fertility.
2020
Riedel, J.; Bauer, B.; Breunig, P.; Bleisteiner, N.
Geschäftsmodell Klimalandwirt Artikel Open Access
In: Sonderheft DLG-Mitteilungen, 2020.
BibTeX | Schlagwörter: Ackerbau, Ertragsmodelle, Klimaschutz, Klimawandel | Links:
@article{BreunigP.BleisteinerN.RiedelJ.BauerB..,
title = {Gesch\"{a}ftsmodell Klimalandwirt},
author = {J. Riedel and B. Bauer and P. Breunig and N. Bleisteiner },
url = {https://www.dlg-mitteilungen.de /fileadmin/img/content/cover/heft/2020/20-05/Sonderheft_Humus.pdf},
year = {2020},
date = {2020-04-01},
urldate = {2020-04-01},
journal = {Sonderheft DLG-Mitteilungen},
keywords = {Ackerbau, Ertragsmodelle, Klimaschutz, Klimawandel},
pubstate = {published},
tppubtype = {article}
}
2018
Böhm, R.; Schaidhauf, R. M.; Wytopil, B.; Franke, J.
Analyse der Marktaussichten von Biogasanlagen Artikel Open Access
In: Zeitschrift für Energiewirtschaft, Bd. 42, Nr. 2, S. 167–176, 2018, ISSN: 0343-5377.
Abstract | BibTeX | Schlagwörter: Biogasanlagen, Direktvermarktung, Ertragsmodelle, Regelenergie, Systemdienstleistungen | Links:
@article{Bohm.2018,
title = {Analyse der Marktaussichten von Biogasanlagen},
author = {R. B\"{o}hm and R. M. Schaidhauf and B. Wytopil and J. Franke },
doi = {10.1007/S12398-018-0224-4},
issn = {0343-5377},
year = {2018},
date = {2018-01-01},
urldate = {2018-01-01},
journal = {Zeitschrift f\"{u}r Energiewirtschaft},
volume = {42},
number = {2},
pages = {167--176},
abstract = {Ohne garantierte Verg\"{u}tung der eingespeisten elektrischen Energie nach dem Erneuerbaren Energien Gesetz (EEG) befinden sich regenerative Erzeugungsanlagen unterschiedlichen Typs im Wettbewerb auf dem Strommarkt. B\"{o}rsliche Stromprodukte und Stromprodukte im OTC-Handel alleine erlauben aktuell keinen kostendeckenden Betrieb der Biogasanlagen.
Without guaranteed compensation, granted by the German Renewable Energy Sources Act (Erneuerbare Energien Gesetz/EEG), biogas plants compete with all other plant types on the market for electrical energy. However, exchange-based electricity products do not currently permit an economically viable operation of biogas plants owing to their cost situation.},
keywords = {Biogasanlagen, Direktvermarktung, Ertragsmodelle, Regelenergie, Systemdienstleistungen},
pubstate = {published},
tppubtype = {article}
}
Ohne garantierte Vergütung der eingespeisten elektrischen Energie nach dem Erneuerbaren Energien Gesetz (EEG) befinden sich regenerative Erzeugungsanlagen unterschiedlichen Typs im Wettbewerb auf dem Strommarkt. Börsliche Stromprodukte und Stromprodukte im OTC-Handel alleine erlauben aktuell keinen kostendeckenden Betrieb der Biogasanlagen.
Without guaranteed compensation, granted by the German Renewable Energy Sources Act (Erneuerbare Energien Gesetz/EEG), biogas plants compete with all other plant types on the market for electrical energy. However, exchange-based electricity products do not currently permit an economically viable operation of biogas plants owing to their cost situation.
Without guaranteed compensation, granted by the German Renewable Energy Sources Act (Erneuerbare Energien Gesetz/EEG), biogas plants compete with all other plant types on the market for electrical energy. However, exchange-based electricity products do not currently permit an economically viable operation of biogas plants owing to their cost situation.