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Registros recuperados: 12
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Effect of feeding fermentable fibrerich feedstuffs lupin and chicory prior to slaughter with special emphasis on the effect on chemical boar taint in organic entire male and female pigs and technological meat quality Organic Eprints
Hansen, Laurits Lydehøj; Jensen, Jens Askov; Henckel, Poul; Hansen-Møller, Jens; Syriopoulos, Kostas.
Boar taint is an off-flavour of pork caused primarily by skatole and, androstenone. Pig off-odour and flavour mostly caused by higher skatole concentrations in backfat. It is a problem in all types of pork production and is not restricted to entire male pigs. If uncastrated, 5-10% of Danish entire male pigs (100 kg liveweight) have > 0.25 ppm skatole in backfat and are then classified as boar tainted, having a markedly reduced value. Even backfat skatole values above 0.15 ppm enhance the off-odour for skatole sensitive consumers. An alternative way to reduce high skatole concentrations may be feeding with fibre-rich feedstuffs. This idea is based on previous studies which have demonstrated that 10% dried chicory or more in the feed reduces skatole in...
Tipo: Report Palavras-chave: Quality and evaluation of inputs; Pigs.
Ano: 2007 URL: http://orgprints.org/11057/1/11057.pdf
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Effects of clover-grass silages and concentrate supplementation on the content of phytoestrogens in dairy cow milk Organic Eprints
Steinshamn, Håvard; Purup, Stig; Thuen, Erling; Hansen-Møller, Jens.
A 2 × 2 factorial continuous experiment was conducted with 28 Norwegian Red dairy cows in early lactation to compare milk content of phytoestrogens when feeding ad libitum white clover (WCS) or red clover (RCS) grass silages prepared from the second and third cut without and with 10 kg/d supplementation of a standard concentrate. The cows were offered either RCS or WCS for 88 d (period 1) and thereafter a mixed red clover-white clover-grass silage for 48 d (period 2). Total dry matter intake and milk yield were not affected by forage type but increased with concentrate supplementation. Intake of isoflavones was several times greater in RCS than in WCS, whereas intake of lignans was greater in WCS. Concentrate supplementation reduced the intake of most...
Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Dairy cattle Animal husbandry Feeding and growth.
Ano: 2008 URL: http://orgprints.org/13810/1/Steinsham__etal_2008_Effects_clover%2Dgrass_silages_conc_suppl_phytoestrogens.pdf
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Effects of feeding dairy cows different legume-grass silages on milk phytoestrogen concentration Organic Eprints
Höjer, Annika; Adler, Steffen; Purup, Stig; Hansen-Møller, Jens; Martinsson, Kjell; Steinshamn, Håvard; Gustavsson, Anne-Maj.
Phytoestrogens are hormone-like substances in plants that can substantially influence human health (positively or negatively), and when fed to dairy cows are partly transferred to their milk. The aim of this study was to investigate effects of varying the botanical composition and regrowth interval of legume-grass silage on phytoestrogen intake and milk phytoestrogen concentrations. In one experiment, 15 Swedish Red dairy cows were fed two- or three-cut red clover-grass silage, or two-cut birdsfoot trefoil-grass silage. In a second experiment, 16 Norwegian Red dairy cows were fed short-term ley silage with red clover or long-term ley silage with white clover, and the effects of supplementation with α-tocopherol were also tested. There were high...
Tipo: Journal paper Palavras-chave: Dairy cattle; "Organics" in general; Pasture and forage crops.
Ano: 2012
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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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Gastrointestinal metabolism of phytoestrogens in lactating dairy cows fed silages with different botanical composition Organic Eprints
Njåstad, Kari Marie; Adler, Steffen A.; Hansen-Møller, Jens; Thuen, Erling; Gustavsson, Anne-Maj; Steinshamn, Håvard.
Dietary phytoestrogens are metabolized or converted in the gastrointestinal tract of ruminants, only limited knowledge exists on the extent and location of this conversion in vivo. The objective of this study was to quantify the gastro-intestinal metabolism of phytoestrogens in lactating dairy cows fed silages with different botanical composition. Four lactating rumen cannulated Norwegian Red cattle were assigned to a 4?4 Latin square with 1 cow per treatment period of 3 wk. The 4 treatment silages were prepared from grasslands with different botanical compositions: organically managed short-term timothy (Phleum pratense L.) and red clover (Trifolium pratense L.) ley (2 yr old: ORG-SG); organically managed long-term grassland with a high proportion of...
Tipo: Journal paper Palavras-chave: Dairy cattle Food security; Food quality and human health Feeding and growth.
Ano: 2014 URL: http://orgprints.org/27827/1/Njaastad%20et%20al%202014%20Gastrointestinal%20metabolism%20of%20phytoestrogens%20in%20dairy%20cows.pdf
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Hydrogenering av fettsyrer i vomma - effekt av botanisk sammenstening av surfôret Organic Eprints
Adler, Steffen; Steinshamn, Håvard; Thuen, Erling; Jensen, Søren K.; Hansen-Møller, Jens.
Surfôr fra kortvarig eng (KS) hadde lavere innhold av C18:3c9,12,15 enn surfôr fra langvarig eng(LS)og raigrassurfôr. Likevel ga surfôr fra KS høyest innhold av C18:3c9,12,15 i melk. Årsaken var redusert hydrogenering i vomma. Dette gjaldt også summen av alle umettede C18-fettsyrer men ikke C18:1c9 eller C18:2c9,12. Årsaken til redusert hydrogenering for KS kan være rødkløverens innhold av PPO.
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops Food security; Food quality and human health Animal husbandry Feeding and growth.
Ano: 2011 URL: http://orgprints.org/18817/4/18817.pdf
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Melkas innhold av fytoøstrogener påvirkes av engdriftsmåte og produksjonssystem Organic Eprints
Adler, Steffen; Höjer, Annika; Njåstad, Kari Marie; Purup, Stig; Hansen-Møller, Jens; Thuen, Erling; Gustavsson, Anne-Maj; Martinsson, Kjell; Steinshamn, Håvard.
Engdriftsmåte som gir høyt innhold av rødkløver i grovfôret gir høyt innhold av equol i melk. Produksjonssystem hadde mindre betydning i denne studien.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle Pasture and forage crops Farming Systems Food security; Food quality and human health.
Ano: 2013 URL: http://orgprints.org/23137/1/Adler%20et%20al%202013%20Fyto%C3%B8strogen%20i%20melk%20og%20driftsm%C3%A5te%20HFM2013.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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Phytoestrogens and Their Metabolites in Bulk-Tank Milk: Effects of Farm Management and Season Organic Eprints
Adler, Steffen A.; Purup, Stig; Hansen-Møller, Jens; Thuen, Erling; Steinshamn, Håvard.
Phytoestrogens have structures similar to endogenous steroids and may induce or inhibit the response of hormone receptors. The objectives of the present study were to compare the effects of long-term vs. short-term grassland management in organic and conventional dairy production systems, compare organic and conventional production systems and assess seasonal variation on phytoestrogen concentrations in bulk-tank milk. The concentrations of phytoestrogens were analyzed in bulk-tank milk sampled three times in two subsequent years from 28 dairy farms: 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. Grassland management varied in...
Tipo: Journal paper Palavras-chave: Production systems Dairy cattle Food security; Food quality and human health.
Ano: 2015 URL: http://orgprints.org/29287/7/29287.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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Imprime registro no formato completo
Pork quality related to the diet content of fermentable fibre-rich feedstuffs (chicory and lupine) with special emphasis on the effect on boar taint and meat quality Organic Eprints
Hansen, Laurits Lydehøj; Jensen, Jens Askov; Henckel, Poul; Hansen-Møller, Jens; Byrne, Derek V.; Syriopoulos, Kostas.
Boar taint is an off-flavour of pork caused primarily by skatole and, androstenone. Pig off-odour and flavour mostly caused by higher skatole concentrations in backfat. It is a problem in all types of pork production and is not restricted to entire male pigs. If uncastrated, 5-10% of Danish entire male pigs (100 kg liveweight) have > 0.25 ppm skatole in backfat and are then classified as boar tainted, having a markedly reduced value. Even backfat skatole values above 0.15 ppm enhance the off-odour for skatole sensitive consumers. An alternative way to reduce high skatole concentrations may be feeding with fibre-rich feedstuffs. This idea is based on previous studies which have demonstrated that 10% dried chicory or more in the feed reduces skatole in...
Tipo: Conference paper, poster, etc. Palavras-chave: Quality and evaluation of inputs; Pigs.
Ano: 2007 URL: http://orgprints.org/11058/1/11058.pdf
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Proliferative effect of whey from cows’ milk varying in phyto-oestrogens in human breast and prostate cancer cells Organic Eprints
Nielsen, Tina Skau; Höjer, Annika; Gustavsson, Anne-Maj; Hansen-Møller, Jens; Purup, Stig.
Intake of dietary phytoestrogens has received a great deal of attention due to their potential influence on hormone-sensitive cancers such as breast and prostate cancer. Cow´s milk contains phytoestrogens and the content varies according to the composition of the feed and the type and amount of legumes used. In this study we evaluated the proliferative effect of milk with different phytoestrogen content in human breast (MCF-7) and prostate cancer cells (PC-3). Milk was obtained from cows fed either a birdsfoot trefoil-timothy silage based ration (B1) or two different red clover silage based diets (R1 and R2) resulting in total phytoestrogen contents of 403 ng/ml, 1659 ng/ml and 1434 ng/ml for the B1, R1 and R2 diets, respectively. Whey was produced from...
Tipo: Journal paper Palavras-chave: Dairy cattle Food security; Food quality and human health.
Ano: 2011
Registros recuperados: 12
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