|
|
|
|
|
| Velik, Margit; Steinwidder, Andreas; Baumung, Roswitha; Zollitsch, Werner; Knaus, Wilhelm. |
| The aim of the present study was to investigate and optimize the protein supply of organic dairy cows kept in Austrian grassland regions through the inclusion of maize silage into the diet. Therefore, two feeding trials were carried out. Trial I examined the effect of a partial substitution of purchased concentrates with home grown maize silage on feed and nutrient intake, milk performance and feed efficiency. Trial II was conducted to investigate the effect of maize silage or grain as an energy supplement to grass-clover silage based diets. In trial I milk yield decreased by 10%, however concentrate intake per kg milk was markedly reduced and dietary N efficiency and energy balance tendencially improved. Trial II revealed that even a small amount of maize... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Feeding and growth. |
| Ano: 2007 |
URL: http://orgprints.org/9304/1/9304_Velik_Vortrag.pdf |
| |
|
|
| Velik, Margit; Baumung, Roswitha; Zollitsch, Werner; Knaus, Wilhelm, Friedrich. |
| The aim of the present study was to investigate the influence of partial substitution of purchased concentrates with maize silage on feed intake, energy and nutrient supply, milk production and feed utilization efficiency in organic dairy cows. In the experiment, two winter rations were compared. In the experimental group (E) 2/3 of average herd concentrate intake were replaced by maize silage. In group E total dry matter, protein und energy intake was significantly lower than in the control group (C) (16.3 and 17.8 kg, 99 and 110 MJ NEL, 2170 and 2460 g crude protein, respectively). Milk yield decreased in group E by 1.7 kg, which was not statistically significant. Ruminal nitrogen balance and dietary protein to energy ratio was significantly lower in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth. |
| Ano: 2006 |
URL: http://orgprints.org/7177/1/Paper_Veliketal.pdf |
| |
|
|
| Baldinger, Lisa; Baumung, Roswitha; Zollitsch, Werner; Knaus, Wilhelm. |
| Das Ziel der Studie war es, ökologisch angebautes italienisches Raygras (Lolium multiflorum Lam.) auf seine Eignung für die Winterfütterung von ökologisch gefütterten Milchkühen zu testen. Der dafür durchgeführte Fütterungsversuch mit zwei Gruppen laktierender Holstein Friesian-Kühe fand im Winter 2008/09 statt. In der Raygrasration ersetzte siliertes italienisches Raygras 50 % des Silageanteils der Kontrollration, die auf Gras-Kleegrassilage basierte. Beide Grundfuttermischungen wurden mit mäßigen Mengen zugekauften Kraftfutters ergänzt, um isoenergetische und isonitrogene Gesamtrationen zu gewährleisten. Kühe, die mit der Raygrasration gefüttert wurden, nahmen signifikant mehr Grundfutter auf als Kühe, die mit der Kontrollration gefüttert wurden (14,5... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle. |
| Ano: 2011 |
URL: http://orgprints.org/17641/3/Baldinger_17641.pdf |
| |
|
|
| Velik, Margit; Baumung, Roswitha; Zaludik, Katrina; Niebuhr, Knut; Zollitsch, Werner. |
| Feedstuffs were analysed from 9 conventional and 12 organic farms which previously reported feather pecking in their laying hen flocks. Essential amino acid contents were significantly higher in conventional than in organic diets, while the latter matched suggested nutrient contents. Declared amino acid contents and results of analyses were in good agreement. Particle size of mash feedstuffs deviated from suggested values: percentages of coarse and medium particles were higher and lower, respectively, than suggested. Severity of feather pecking slightly correlated with dietary methionine content and with methionine:ME. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Poultry. |
| Ano: 2005 |
URL: http://orgprints.org/3543/1/3543.pdf |
| |
|
|
|
