|
|
|
|
|
| Warnecke, Sylvia; Schulz, Franziska; Paulsen, Hans Marten; Rahmann, Gerold. |
| Organic and conventional feeding practices of dairy cattle differ due to specific regulations that are in place for organic farming. E.g., dairy cows must have access to pasture, and soybean extract, a very common concentrate in conventional dairy feeding, may not be fed. The joint project “Climate Effects and Sustainability of Agricultural Systems – Analyses in a Network of Pilot Farms” determined feeding practices and feed qualities on a total of 44 dairy farms (22 organic and conventional, each) in four German regions for 2008, 2009 and 2010. The average diets of the dairy cows differed considerably between organic and conventional dairy farms. Organic farms with a high percentage of hay in the diet were found in East and South Germany. The low... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth. |
| Ano: 2014 |
URL: http://orgprints.org/23349/1/23349_MM.pdf |
| |
|
|
| Wagner, Kathrin; Brinkmann, Jan; March, Solveig; Hinterstoißer, P.; Warnecke, Sylvia; Schüler, Maximilian; Paulsen, Hans Marten. |
| Grazing provides livestock better opportunities to act out their species specific behaviour compared to the restrictive stable conditions. Studies on the effect of grazing on animal welfare in dairy farming in Germany are rare and have not been conducted under the specific conditions of organic dairy farming. The aim of the present study was to examine the effects of grazing on animal welfare of dairy cows in organic and conventional farming based on the Welfare Quality® protocol for dairy cattle. In this paper, we present the initial evaluation of a comparison between zero grazing and summer grazing. The first results indicate an improvement in most welfare principles during the summer months for dairy cows with summer grazing, except for between... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/31914/1/Welchen%20Einfluss%20hat%20der%20Weidegang%20auf%20das%20Tierwohl%20von.pdf |
| |
|
|
| Paulsen, Hans Marten; Warnecke, Sylvia; Rahmann, Gerold. |
| In the project ‘Climate effects and Sustainability of Organic and Conventional Farming Systems’ dairy farms in Germany were analysed for their greenhouse gas (GHG) emissions based on the whole process chain (Hülsbergen and Rahmann, 2013). This article focuses on the main GHG from dairy production. The most important source is methane (CH4) from enteric fermentation of the cows. Second important are the GHG from livestock manure: CH4, nitrous oxide (N2O) and indirect N2O-emissions (N2Oindirect) by ammonia (NH3) deposition on soils. They are determined by manure composition, manure management in stables and storage and by excreta of grazing animals dropped on pasture. The results from organic and conventional dairy farms are presented. A view on limits of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions. |
| Ano: 2014 |
URL: http://orgprints.org/23926/1/23926.pdf |
| |
|
|
| Warnecke, Sylvia; Paulsen, Hans Marten. |
| Four organic dairy farms of a German farm network (www.pilotbetriebe.de) were described in detail with respect to average diets and feedstuff quality, and were compared to the mean results of the 22 organic and 22 conventional farms of the network. At milk yields between 4,469 and 6,769 kg energy corrected milk (ECM) a-1, rations of three farms almost completely depended on grass and grass clover from both grassland and arable land (96-100 %; mean organic approx. 75 %). The fourth farm was similar to the average conventional milk yield and diet (incl. maize silage and a high share of concentrates) hence it largely depended on arable land. Enteric methane (CH4) emissions per kg ECM were higher the more fibre rich feedstuffs were fed and, as expected, the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Environmental aspects. |
| Ano: 2015 |
URL: http://orgprints.org/27161/1/27161_warnecke.pdf |
| |
|
|
| Paulsen, Hans Marten; Frank, Helmut; Hülsbergen, Kurt-Jürgen; Rahmann, Gerold; Schmidt, Harald; Warnecke, Sylvia. |
| Sources of greenhouse gas (GHG) emission of milk production were analysed on organic and conventional dairy farms from cradle to farm gate and resulted in a mean of ca. 1 kg CO2 eq kg ECM-1 independent of the farm system. When calculated according to dry matter intake of the cows, mean percentages of GHG emissions from enteric fermentation on organic or conventional farms were 31 or 42 % from the complete product related emissions from milk production from cradle to farm gate, respectively. When feed quality parameters were considered in calculation, enteric methane production increased considerably with higher fibre contents in feedstuffs. This was especially important at lower milk yields. On the 44 farms that were analysed, minimal potential GHG... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Animal husbandry; Feeding and growth; Air and water emissions; Environmental aspects. |
| Ano: 2015 |
URL: http://orgprints.org/27127/1/27127_paulsen.pdf |
| |
|
| |
|
|
| Paulsen, Hans Marten; Schmid, Harald; Beisecker, R.; Schröder, K.; Warnecke, Sylvia; Hinterstoißer, P.; Wagner, K.; Schüler, Maximilian; Schulz, Franz; Ambros, C.; Koopmann, Regine; March, Solveig; Brinkmann, Jan; Chmelíková, Lucie; Anke, S.; Seith, T.; Becker, Heiko; von Stieglitz, I.; Sanders, J.; Hülsbergen, Kurt-Jürgen. |
| In a network of organic and conventional pilot farms with dairy and/or arable production in Germany (www.pilotbetriebe.de) aspects of sustainability, resource efficiency, animal health and welfare and economic aspects are analysed. This is based on on-farm assessments and on whole farm modelling. In the first interdisciplinary workshops on the project farms results were presented and scenarios were developed in a participatory approach by scientists, consultants and farmers to improve N, P and land use efficiency as well as dairy health and welfare. Typical areas of action to optimize sustainability in these aspects were identified on the farms, e.g., complete accounting of manure N (N balance), enrichment of crop rotations with clover grass and cover... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Policy environments and social economy Education; Extension and communication Farm nutrient management. |
| Ano: 2017 |
URL: http://orgprints.org/31829/1/Windows%207%20printed%20document-2.pdf |
| |
|
|
|
