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	Provedor de dados Organic Eprints (2) Autor Heimberg, P. (2) Leisen, E. (2) Pries, M. (2) Vormann, M. (1) Palavra-chave Feeding and growth (2) Animal husbandry (1) Dairy cattle (1) Health and welfare (1) Tipo do documento Conference paper, poster, etc. (2) Ano 2009 (1) 2007 (1) País Germany (2) Idioma deu (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Untersuchungen zu Fütterung, Milchleistung und Tiergesundheit von Milchkühen im Ökologischen Landbau Organic Eprints Leisen, E.; Pries, M.; Heimberg, P.. The breeding scheme entails yield differences of more than 2 000 kg energy corrected milk (ECM) per cow and year. On average, farms feeding less concentrate yielded slightly lower milk yields per cow and year, however, because of the longer productive life the cows showed similar milk yields over their lifetime. The farms investigated so far appeared to have healthy cows, even if fed low levels of concentrates or in the case of extremely low or high urea contents in the milk. These values could indicate the cows’ ability to compensate for short-dated changes. Tipo: Conference paper, poster, etc. Palavras-chave: Animal husbandry; Health and welfare; Feeding and growth. Ano: 2007 URL: http://orgprints.org/10326/1/10326_Leisen_Poster.pdf Kraftfuttergaben und Milchleistung bei Weidegang von Milchviehherden im ökologischen Landbau Organic Eprints Leisen, E.; Pries, M.; Heimberg, P.; Vormann, M.. During grazing, the efficiency of concentrate feeding on milk yields is low, especially when white clover is present in the sward (Wilkens et al., 1994). Clover in animal feed enhances forage intake; feeding trials have shown increased intake rates by 15-30 % (Paul, 2003). These results are of special interest for organic farms, where clover has a higher impact on the farming system. In the experimental organic farm of the Landwirtschaftskammer Nordrhein-Westfalen (Haus Riswick) the concentrate rate fed during grazing time showed no influence upon milk yields (2,6 resp.4,7 kg DM concentrate/ animal/day). In agreement with these results a three years investigation on 89 organic farms in Northwest Germany showed no effect of concentrate feeding on milk... Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Feeding and growth. Ano: 2009 URL: http://orgprints.org/15696/1/Leisen_.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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