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Registros recuperados: 14
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Driftsmåte og engalder påvirker melkekvaliteten Organic Eprints
Adler, Steffen; Steinshamn, Håvard; Jensen, Søren K..
Fettsyresamensetning og innhold av vitaminer i melk ble i stor grad påvirket av sesong og produksjonssystem og i mindre grad av engalder. Beitesesongen hadde gunstig effekt på fettsyresammensetning sammenlignet med innefôringsperioden, mens økologisk driftsform hadde gunstige effekter som økt andel av C18:3c9,12,15 og negative effekter som økt andel mettede fettsyrer. Hovedfaktorene bak de observerte effektene antas å være fôrrasjonens andel av kraftfôr, beiteopptak, rødkløver og kraftfôrets innhold av lipider.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth.
Ano: 2011 URL: http://orgprints.org/18819/1/Adler_Driftsm%C3%A5te_og_engalder_HFM11.pdf
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EcoServe: Økosystem Funktioner og Services af Biodiversitet i Græsmarker Organic Eprints
Eriksen, Jørgen; Thomsen, Henning C..
Multifunktionalitet med positive effekter på natur og samfund er et centralt element i økologisk jordbrug, og høj biodiversitet er afgørende herfor. Græsmarker har det største potentiale for at yde denne service, men økologiske græsmarker er store og biodiversiteten på dyrkningsfladen er lav.
Tipo: Web product Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Recycling; Balancing and resource management Markets and trade Biodiversity and ecosystem services Consumer issues.
Ano: 2011 URL: http://orgprints.org/20056/1/index.html
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Ecosystem Functions and Services of Biodiversity in Grasslands Organic Eprints
Multifunctionality with positive effects on nature and society is a central element of organic agriculture, and a high biodiversity is essential for this. Grassland has the greatest potential for providing this service, but the organic fields are large and biodiversity is low. The purpose of this project is to increase plant biodiversity in grassland and significantly improve ecosystem functions and services in the nature-farmer-consumer chain and for society, and thus also increase the market value of organic products. We will: 1) design and demonstrate productive and biodiverse grassland with squares of flowering plants, 2) improve conditions for bees and other pollinators using flowering grasslands for hay or silage, 3) increase carbon sequestration via...
Tipo: Project description Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Recycling; Balancing and resource management Markets and trade Biodiversity and ecosystem services Consumer issues.
Ano: 2020 URL: http://orgprints.org/19606/1/EcoServe.pdf
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Effect of forage legumes on feed intake, milk production and milk quality – a review Organic Eprints
Steinshamn, Håvard.
Literature data from experiments with lactating dairy cows offered silage-based diets was reviewed to evaluate the effects of the grassland legume species Trifolium repens (WC, white clover), Trifolium pratense (RC, red clover) and Medicago sativa (M, lucerne) on feed intake, milk production and milk quality. Seven data sets were created to compare grass silage (G) with grassland legumes in general(L), G with RC, G with WC, G with M, RC with WC, RC with M and different silage proportions of RC. Daily dry matter intake and milk yield were on average 1.6 and 1.6 kg, respectively, higher and milk fat content 1.2 g/kg milk lower on L than on G based diets. Similar differences were found when G was compared with RC or WC diets. Cows offered WC yielded 1.1 kg/d...
Tipo: Journal paper Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth.
Ano: 2010 URL: http://orgprints.org/17488/1/Steinshamn_2010_Forage_legumes_feed_intake_milk_production_and_qaulity_review.pdf
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Effect of short-term versus long-term grassland management and seasonal variation in organic and conventional dairy farming on the composition of bulk tank milk Organic Eprints
Adler, Steffen A.; Jensen, S.K.; Govasmark, Espen; Steinshamn, Håvard.
Bulk tank milk from 28 dairy farms was sampled every second month for 2 yr to assess the effects of grassland management, production system and season on milk fatty acid (FA) composition, concentrations of fat-soluble vitamins, Se, and milk sensory quality. Grassland management varied in terms of time since establishment. Short-term grassland management (SG) was defined as establishment or reseeding every fourth year or more often, and long-term grassland management (LG) was defined as less frequent establishment or reseeding. Fourteen organic (ORG) dairy farms with either short-term or long-term grassland management were paired with 14 conventional (CON) farms with respect to grassland management. Within ORG farms, SG farms differed from LG farms in...
Tipo: Journal paper Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health.
Ano: 2013 URL: http://orgprints.org/23130/1/Adler%20et%20al%202013%20Effects%20short-term%20long-term%20grassland%20management%20seasonal%20variation%20oganic%20conventional%20dairy%20farming%20composition%20bulk%20tank%20milk.pdf
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Effect of silage botanical composition on ruminal biohydrogenation and transfer of fatty acids to milk in dairy cows Organic Eprints
Adler, Steffen A.; Jensen, S.K.; Thuen, E.; Gustavsson, A.-M.; Harstad, O.M.; Steinshamn, H..
Ruminal biohydrogenation and transfer of fatty acids (FA) to milk were determined for 4 silages with different botanical compositions using 4 multiparous Norwegian Red dairy cows [(mean ± SD) 118 ± 40.9 d in milk, 22.5 ± 2.72 kg of milk/d, 631 ± 3.3 kg of body weight, 3.3 ± 0.40 points on body condition score at the start of the experiment] fitted with rumen cannulas. Treatments consisted of 4 experimental silages: a mix of the first and third cut of organically managed short-term grassland with timothy (Phleum pratense L.) and red clover (Trifolium pratense L.; 2 yr old; ORG-SG); organically managed long-term grassland with a high proportion of unsown species (6 yr old; ORG-LG); conventionally managed ley with perennial ryegrass (Lolium perenne L.;...
Tipo: Journal paper Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health.
Ano: 2013 URL: http://orgprints.org/23129/1/Adler%20et%20al%202013%20Silage%20bot%20comp%20ruminal%20biohydrogenation.pdf
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Effekt av botanisk sammensetning i beite på oksidativ stabilitet i kumelk Organic Eprints
Vae, Anne Holter.
Økologisk melk produsert på rødkløvergrasbeite (RB) eller botanisk allsidig beite (AB) ble analysert for fettsyresammensetning, vitamininnhold og oksidativ stabilitet. Hypotesen i forsøket var at melk produsert på RB har et høyere innhold av flerumettede fettsyrer og at melkefettet dermed er mer utsatt for oksidasjon enn melk produsert på AB. Det var også forventet å finne et høyere innhold av vitaminer i melk produsert på RB enn på AB som kan hemme oksidasjonsprosessen. I et kontinuerlig produksjonsforsøk gikk to grupper à åtte kyr (Norsk Rødt Fe) i tre perioder à tre uker på henholdsvis RB (28 % rødkløver, 19 % timotei, 33 % engsvingel, 17 % andre urter) eller AB (21 % hvitkløver, 19 % engrapp, 17 % timotei, 15 % engsvingel, 3 % rødkløver, 9 % andre...
Tipo: Thesis Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth.
Ano: 2009 URL: http://orgprints.org/19034/1/MSc%2DThesis_Anne_Holter_Vae.pdf
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Effekt av surfôr fra kortvarig eng eller langvarig eng på kvalitet i kumelk Organic Eprints
Adler, Steffen; Steinshamn, Håvard; Dahl, Annette Veberg; Thuen, Erling; Jensen, Søren K.; Hansen-Møller, Jens.
Surfôr fra kortvarig eng har gitt høyere andel av flerumettede fettsyrer i melk sammenlignet med surfôr fra langvarig eng men dette har ikke ført til at melka ble mer utsatt for lysindusert oksidasjon. Tilskudd av α-tokoferol økte innholdet av α-tokoferol i melka men hadde ingen effekt på melkas oksidative stabilitet. Surfôr fra kortvarig eng ga høyere innhold av isoflavoner og lavere innhold av lignaner i melk enn surfôr fra langvarig eng.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth.
Ano: 2011 URL: http://orgprints.org/18820/1/Adler_Effekt_av_surf%C3%B4r_HFM11.pdf
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Fachtagung für Biologische Landwirtschaft - Grünlandbasierte BIO-Rinderhaltung Organic Eprints
Die zu beobachtenden raschen Veränderungen im Bereich der Energie- und Rohstoff­versorgung, des Klimas, der Wasserressourcen, der fruchtbaren Bodenressourcen, aber auch die weitere Zunahme der Weltbevölkerung werden in der Landwirtschaft nicht ohne Folgen bleiben. Die biologische Landwirtschaft setzt daher bereits seit Jahrzehnten auf Bewirtschaftungsverfahren, die Bodenfruchtbarkeit, Gesundheit, Qualität und Nachhaltigkeit fördern und zielt auf eine möglichst standortangepasste Landwirtschaft mit minimiertem externen Ressourceneinsatz ab. Im Rahmen der Bio-Fachtagung 2013 werden aktuelle Forschungs- und Umsetzungsergebnisse zur grünlandbasierten biologischen Rinderhaltung vorgestellt und diskutiert bzw. sollen Optimierungsstrategien aufgezeigt werden....
Tipo: Proceedings Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Beef cattle Composting and manuring Feeding and growth Nutrient turnover Breeding and genetics Sheep and goats Technology transfer Health and welfare Farm nutrient management.
Ano: 2013 URL: http://orgprints.org/24616/1/4b_2013_tagungsband_gesamt.pdf
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Fatty acid composition, fat-soluble vitamin concentrations and oxidative stability in bovine milk produced on two pastures with different botanical composition Organic Eprints
Adler, Steffen A.; Dahl, A.V.; Jensen, S.K.; Thuen, E.; Gustavsson, A.-M.; Steinshamn, H..
Previous research has shown that grazing pastures compared to feeding preserved forages has large impact on milk fatty acid (FA) composition, but differences between grazing red clover (Trifolium pratense L.) or white clover (Trifolium repens L.) are small, whereas the herbage proportions of dicotyledon botanical families is positively correlated with the milk-fat proportions of total polyunsaturated FA when grazing pastures in the Alps. The objective of the present study was to investigate the influence of botanically different pastures on bovine milk composition and milk susceptibility to oxidation. Two groups of 8 multiparous Norwegian Red dairy cows [mean (standard deviation); 599 (45.1) kg body weight, 73 (15.0) d in milk, 29.9 (2.90) kg milk/d at...
Tipo: Journal paper Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health.
Ano: 2013 URL: http://orgprints.org/23128/1/Adler%20et%20al%202013%20Fatty%20acid%20composition%20fat%20soluble%20vitamin%20concentration%20oxidative%20stability%20bovine%20milk%20pasture%20botanical%20composition.pdf
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Metabolism of phytoestrogens in dairy cows - effect of botanical composition of silages Organic Eprints
Njastad, Kari Marie.
Metabolism of the isoflavones biochanin A, genistein, formononetin, daidzein, equol and prunetin, the lignans matairesinol, secoisolariciresinol, enterodiol and enterolactone and the coumestan coumestrol was investigated to study the metabolism of phytoestrogens in dairy cows, and the possibilities to influence the content in milk. Four Norwegian Red Cows where allocated in a 4x4 latin square with four different silages. Silages had different botanical composition; red clover, botanical diverse, perennial ryegrass and timothy. The concentration of phytoestrogens was measured in feeds, omasum phases, feces, urine and milk by using the liquid chromatography (LC)-mass spectrometry (MS)/MS technique. Metabolism in reticulorumen and in digestive tract as well...
Tipo: Thesis Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth.
Ano: 2011 URL: http://orgprints.org/18824/1/MSc%2Doppgave_Kari_NJAASTAD.pdf
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Omsetjing av planteøstrogen hos mjølkeku - effekt av botanisk samansetjing av surfôret Organic Eprints
Steinshamn, Håvard; Adler, Steffen; Njåstad, Kari Marie; Thuen, Erling; Hansen-Møller, Jens.
Planteøstrogena formononetin og daidzein blir i stor grad omsatt til equol og vidare til ukjende sambindingar i vomma. Nedbrytinga av planteøstrogena i vom var sterkare i surfôr laga på raigras og langvarig artsrik eng enn i surfôr laga av timoteieng eller kortvarig eng med raudkløver. Attfinninga av planteøstrogena var størst i gjødsel og minst i mjølk. Omsetjinga av equol i kroppen (intermediær) var avgrensa av fart (rate limiting) medan dette synest ikkje å vere tilfelle i vom og tarm.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth.
Ano: 2011 URL: http://orgprints.org/18818/1/Steinshamn_et_al_planteestrogen.pdf
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Phyto-oestrogens and their metabolites in milk produced on two pastures with different botanical compositions Organic Eprints
Adler, Steffen A.; Purup, Stig; Hansen-Møller, Jens; Thuen, Erling; Gustavsson, Anne-Maj; Steinshamn, Håvard.
Phyto-oestrogens are a group of secondary plant metabolites that may bind to oestrogen receptors and exert oestrogenic or anti-oestrogenic effects in humans and can protect against cancer diseases. When ingested by dairy cows, phyto-oestrogens can be metabolised and transferred to the milk. The objective of this study was to assess the effects of grazing a recently established pasture containing red clover (Trifolium pratense L.) and an older pasture containing a variety of sown and unsown plant species on milk concentrations of phyto-oestrogens. Sixteen Norwegian Red dairy cows [mean (standard deviation); body weight 599 (45.1) kg, stage of lactation 73 (15.0) d in milk, milk yield 29.9 (2.90) kg/d at the start of the experiment] were divided into two...
Tipo: Journal paper Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health.
Ano: 2014 URL: http://orgprints.org/25723/7/25723.pdf
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Treng kyr i midtlaktasjon ekstra tilskot av E-vitamin? Organic Eprints
Steinshamn, Håvard; Luteberget, Ingvild Steinnes; Larsen, Hans Jørgen S.; Jensen, Søren K.; Thuen, Erling.
Sjølv om α-tokoferolinnhaldet (39 mg/kg DM) i surfôr ikkje var spesielt høgt, var det tydelegvis nok når surfôropptaket var så høgt som i dette forsøket. Det er grunn til å revurdere tilrådinga om ekstra E-vitamin til mjølkekyr i midt- og seinlaktasjon.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Regulation.
Ano: 2013 URL: http://orgprints.org/23139/1/Sateinshamn%20et%20al%202013%20E-vitamin%20tilskot.pdf
Registros recuperados: 14
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