Feeding dairy cows with no or reduced amounts of forage

Autor: Børsting, Christian Friis, Hellwing, Anne Louise Frydendahl, Weisbjerg, Martin Riis, Østergaard, Søren, Raun, B. L., Røjen, B.A., Kristensen, Niels Bastian
Přispěvatelé: Udén, P., Eriksson, T., Spörndly, R., Rustas, B-O., Karlsson, J.
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Børsting, C F, Hellwing, A L F, Weisbjerg, M R, Østergaard, S, Raun, B L, Røjen, B A & Kristensen, N B 2019, Feeding dairy cows with no or reduced amounts of forage . in P Udén, T Eriksson, R Spörndly, B-O Rustas & J Karlsson (eds), Proceedings of the 10th Nordic Feed Science Conference . Swedish University of Agricultural Sciences, Department of Animal Nutrition and Management, Uppsala, Sveriges Lantbruksuniversitet. Institutionen foer Husdjurens Utfordring och Vaard. Rapport, vol. 302, pp. 87-91, Nordic Feed Science Conference, Uppsala, Sweden, 11/06/2019 . < https://www.slu.se/globalassets/ew/org/inst/huv/nfsc/nfsc2019/nfsc-proceedings-2019-06-05-torsten-eriksson.pdf >
Popis: In Northern Europe the production of forage was severely impaired by drought in 2018. In Norway sawdust was tested as an alternative fiber source for dairy cows (Harstad & Prestløkken (2018). In earlier Danish studies Kristensen et al. (2003) demonstrated that it was possible to feed dairy cows chopped ammonia treated straw as the only roughage. However, the energy utilization was lower than for diets with forage. In late July 2018, there were a potential risk that some Danish dairy farms would have very limited amounts of forage. Therefore, it was decided to study how straw could be included in diets of high yielding dairy cows. The aim of this study was to examine the effects of replacing all or half of the forage (50% of dry matter (DM)) in a standard diet with straw and concentrate. The two concentrate mixtures used were based either on non-gene modified (NonGM) locally grown ingredients or mainly on gene modified (GM) ingredients.
Databáze: OpenAIRE
Externí odkaz: