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	Provedor de dados Organic Eprints (1) Autor Brenøe, Ulrik Tutein (1) Garmo, Torstein H (1) Höglind, Mats (1) Steinshamn, Håvard (1) Thuen, Erling (1) Palavra-chave Air and water emissions (1) Dairy cattle (1) Feeding and growth (1) Tipo do documento Journal paper (1) Ano 2006 (1) País Germany (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Feed nitrogen conversion in lactating dairy cows on pasture as affected by concentrate supplementation Organic Eprints Steinshamn, Håvard; Höglind, Mats; Garmo, Torstein H; Thuen, Erling; Brenøe, Ulrik Tutein. The effect of concentrate supplementation on nitrogen (N) intake and excretion in grazing lactating dairy cows was determined in three herds in Norway. Grazing trials were conducted with each herd in June and August for two consecutive years. The average supplementation was 1.8 (S.D. 2.1) kg DM/day, and the concentrate was based on grain with a N content ranging from 18.7 to 24 g/kg DM. Herbage DM and N intake were reduced with increasing supplementation, but total DM and N intake increased. Milk yield and protein content increased by 1.1 kg milk and 0.28 g protein per kg milk for each kg extra concentrate. Milk N excretion increased with increasing supplementation (6.5 g N/kg DM), and N utilisation improved by 11.7 g N per kg N intake per kg extra... Tipo: Journal paper Palavras-chave: Dairy cattle; Air and water emissions; Feeding and growth. Ano: 2006 URL: http://orgprints.org/10651/1/Steinshamn_etal_2006_Feed_N_conversion.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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