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| Registros recuperados: 32 | |
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| Novoa-Garrido, Margarita; Aanensen, Lise; Jensen, Søren K.; Steinshamn, Håvard. |
| Vitamin E is important for ruminants to maintain an optimal immune function, reproduction traits and a high quality of milk and meat. Synthetic vitamin E consists of 87.5% tocopherol molecules with a non-natural configuration and is biological ineffective. The aim of this project is to study the effects of supplementing the diets with seaweed meal or oil seeds extracts as natural vitamin E sources on the immune system and gastrointestinal microbiota in sheep and their off-springs. Of special interest is the group fed with seaweed meal, since seaweed is an abundant and easy accessible raw material on the Norwegian coastline with a huge economical potential. The study includes 40 ewes and their future lambs. The animals will be followed from mating until... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Sheep and goats. |
| Ano: 2010 |
URL: http://orgprints.org/18827/1/Poster.pptx |
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| Sehested, Jakob; Jensen, Søren K.; Søegaard, Karen. |
| En grøn foderration med brug af urter i græsblandingerne gør det muligt i højere grad at blive selvforsynende med vitaminer og mineraler. Et forsøg med to økologiske fodringsstrategier har vist, at køer der ikke får tilskud af mineraler, men derimod får en foderblanding med et højt indhold af naturlige mineraler og vitaminer, har samme foderoptagelse, mælkeproduktion og reproduktion, som køer på en mere traditionel foderration. Blodprøver viste desuden, at køer, der udelukkende fik mineraler og vitaminer naturligt indeholdt i de forskellige fodermidler, havde samme A- og E-vitaminniveau i blodet, som køer der fik tilsat mineralblanding til foderet. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Dairy cattle; Pasture and forage crops; Feeding and growth; Health and welfare. |
| Ano: 2010 |
URL: http://orgprints.org/20732/3/20732.pdf |
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| Höjer, Annika; Martinsson, Kjell; Jensen, Søren K.; Gustavsson, Anne-Maj. |
| Red clover and high proportion of forage in dairy cow diet increases the concentration of bioactive substances in milk, e.g. unsaturated fatty acids and antioxidants. In the present experiment twenty-four Swedish Red dairy cows were fed three silages in a Latin Square design to study the effect of silage botanical composition and harvest time on milk fatty acid, α-tocopherol and β-carotene concentration. The silages were red clover/grass silage (mixture of first and second cut), red clover/grass silage (mixture of first, second and third cut) and birdsfoot trefoil/grass silage (mixture of first and second cut). Botanical composition and harvest system affected silage vitamin and fatty acid concentration with higher concentrations of α-linolenic acid,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle "Organics" in general Pasture and forage crops Food security; Food quality and human health. |
| Ano: 2010 |
URL: http://orgprints.org/18829/1/18829.pdf |
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| Søegaard, Karen; Sehested, Jakob; Eriksen, Jørgen; Askegaard, Margrethe; Mogensen, Lisbeth; Jensen, Søren K.. |
| Urter i græsmarken er blevet undersøgt i forsøg på fem økologiske kvægbrug og ved Foulum. Vækst, konkurrenceevne, foderværdi og mineralindhold i de enkelte arter i tre forskellige blandinger er undersøgt for betydningen af gylletilførsel, slæt/afgræsning og markens alder, og variation mellem gårde er beskrevet. De enkelte urter viste generelt det samme mønster på de forskellige steder, hvilket gør det muligt med generelle konklusioner. En oversigt over konklusioner for de enkelte urter er vist på sidste side af bilaget. Cikorie og vejbred var de stærkeste og indeholdt derudover en stor andel mineraler. Kommen var også forholdsvis stærk, især under slætforhold. Bibernelle og kællingetand var forholdsvis svage konkurrenter, men mange steder var der dog en... |
| Tipo: Report chapter |
Palavras-chave: Farming Systems; Animal husbandry; Feeding and growth; Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/17910/1/17910.pdf |
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| Lauridsen, Charlotte; Vestergaard, Ellen-Margrethe; Højsgaard, Søren; Jensen, Søren K.. |
| This study was designed to investigate the effect of vitamin E supplementation on vitamin E depots and immune responses in weaned pigs after an E. coli inoculation. The design was a 2×2 factorial with vitamin E supplementation (150 mg/kg RRR-α-tocopheryl acetate versus a control diet containing 60 mg all-rac-α-tocopheryl acetate) and E. coli 0 149 inoculation (inoculation of 1×108 CFU on day 2 and 3 after weaning versus inoculation of vehicle). The pigs were housed individually during the experiment which lasted for 10 days from weaning at 7 weeks of age. Blood was sampled on day 1 (day of weaning) and 9 of the experiment, and serum was analyzed for α-tocopherol concentration. On day 10 of the experiment, pigs were killed and samples of liver, heart,... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Farm nutrient management. |
| Ano: 2011 |
URL: http://orgprints.org/19750/4/19750.pdf |
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| Kidane, Alemayehu; Nesheim, Ingvild Luteberget; Larsen, Hans Jørgen S.; Thuen, Erling; Jensen, Søren K.; Steinshamn, Håvard. |
| The objective of the current experiment was to compare the effects of supplementing mid-lactation dairy cows with all-rac-α-tocopheryl acetate (SyntvE), RRR-α-tocopheryl acetate (NatvE) or seaweed meal (Seaweed) in the presence of a Control group (no supplemental vitamin E or seaweed) on the concentration of α-tocopherol in plasma and milk, and antibody response following immunization. The hypothesis was that supplementation of dairy cows with vitamin E, regardless of its form, would increase plasma and milk α-tocopherol compared to the control diet and this incremental response would be bigger with NatvE than SyntvE. Furthermore, it was hypothesized that vitamin E, regardless of its form, will provide an improved adaptive immune response to... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Health and welfare. |
| Ano: 2015 |
URL: http://orgprints.org/29289/1/Kidane%20et%20al%202015%20Effects%20of%20supplementing%20mid-lact%20dairy%20cows%20vitamin%20E%20and%20seaweed.pdf |
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| Höjer, Annika; Adler, Steffen; Martinsson, Kjell; Jensen, Søren K.; Steinshamn, Håvard; Thuen, Erling; Gustavsson, A.-M.. |
| Two feeding experiments were performed to study the effects of silage botanical composition, regrowth interval and α-tocopherol supplementation on the fatty acid (FA) composition and α-tocopherol, β-carotene and retinol concentrations of milk. In experiment 1, 24 Swedish Red dairy cows were fed two- or three-cut red clover-grass silages (R2 and R3, respectively), or two-cut birdsfoot trefoil-grass silage (B2). In experiment 2, 16 Norwegian Red dairy cows were fed short-term ley silage with red clover (S3) or long-term ley silage with white clover (L3) in combination with supplementation of RRR-α-tocopheryl acetate (1,600 mg/day). The FA proportions in the milk and the recoveries of C18:2n-6 and C18:3n-3 were higher on the red clover diets R2 and S3 than on... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; "Organics" in general; Pasture and forage crops. |
| Ano: 2012 |
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| Danielsson, Hanna; Nadeau, Elisabet; Gustavsson, Anne-Maj; Jensen, Søren K.; Soegaard, Karen; Nilsdotter-Linde, Nilla. |
| Concentrations of α-tocopherol and β-carotene in forage species at various maturities were studied in Scandinavia. Red clover (RC)/timothy (TI), RC/meadow fescue (MF), and birdsfoot trefoil (BT)/TI mixtures were grown in Skara and Umeå, Sweden. RC/TI,RC/perennial ryegrass (PR), white clover/PR and BT/TI were grown in Foulum, Denmark. Forages in Sweden were cut one week before heading (BH), at heading and one week after heading of TI. The regrowth was cut six and eight weeks after each harvest in the spring growth cycle. In Denmark, one first harvest and three regrowths were taken. Results from Skara and Foulum are presented. Highest concentrations of α-tocopherol and β-carotene (mg kg-1 DM) in legumes were found in BT grown in Skara (49.8 and 69.6 in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops. |
| Ano: 2008 |
URL: http://orgprints.org/19768/1/EGF2008vitaminslutlig.pdf |
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| Sørensen, Martin T.; Vestergaard, Ellen-Margrethe; Jensen, Søren K.; Lauridsen, Charlotte; Højsgaard, Søren. |
| Four dietary factors (ad libitum versus feed restriction, control versus protein restriction at ad libitum feeding, control versus inclusion of lupine as a protein source at ad libitum feeding, and control versus extra vitamin E at ad libitum feeding) were tested in four separate experiments for the effect on diarrhoea. To introduce a diarrhoea-like condition, half of the piglets were challenged with an inoculation of an E. coli O 149 dose of 1 x 108 colony forming units on day two and three after weaning (day of weaning = day one). All piglets were susceptible since the dams were tested mono-zygotic susceptible to the attachment site of E. coli O 149 in the intestines. Each of the four experiments included 32 piglets from 4 sows. The design was 2 x 2... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare; Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/10369/2/10369.pdf |
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| Lindqvist, H.; Nadeau, E.; Jensen, Søren K.. |
| Effects of wilting, ensiling and type of additive on a-tocopherol and b-carotene contents in legume–grass mixtures were examined. Swards of birdsfoot trefoil + timothy (Bft + Ti), red clover + timothy (Rc + Ti)and red clover + meadow fescue (Rc + Mf) were harvested as a first regrowth in August 2005. Forage was wilted to a dry-matter (DM) content of 273 g/kg and ensiled without additive or with an inoculant or acid. Wilting decreased a-tocopherol concentration by 30% in the Bft + Ti mixture (P = 0.015). Untreated Bft + Ti silage had higher a-tocopherol content than red clover silages (56.9 vs. 34.2 mg/kg DM; P = 0.015). The a-tocopherol concentration of Bft + Ti forages increased during ensiling from 41.1 mg/kg DM in wilted herbage to 56.9, 65.2 and 56.8... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2011 |
URL: http://orgprints.org/19764/1/j_1365-2494_2011_00827_x.pdf |
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| Mogensen, Lisbeth; Kristensen, Troels; Jensen, Søren K.. |
| The aim of this new project is to develop a prototype of a decision support model simulating the feed and vitamin supply during a year to different groups of animals (calves, heifers, dry cows, cows in early and late lactation) on a farm self-sufficient with feed. The model takes into account that the content of vitamin depends on choice of crops, utilization method, cutting date, conservation method and duration of storage together with traditional optimizing the feed-ing scheme. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle. |
| Ano: 2006 |
URL: http://orgprints.org/7418/1/FOJO_kongress_2006_paper.pdf |
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| Sehested, Jakob; Jensen, Søren K.; Søegaard, Karen. |
| Forsyningen af de økologiske husdyr med mineraler og vitaminer er et af de områder, hvor der endnu ikke er fundet løsninger, som udnytter muligheden for recirkulering og selvforsyning på bedriften. Formålet med dette forsøg var at undersøge, om en integreret vitamin- og mineralforsyning kunne opnås i økologisk mælkeproduktion ved i så høj grad som muligt at anvende hjemmedyrkede grovfodermidler med et højt naturligt indhold af vitaminer og mineraler. Perspektivet er at opnå en højere grad af selvforsyning med mineraler og vitaminer til malkekøerne på den enkelte bedrift. I forsøget var det muligt at opnå et tilstrækkeligt indhold af vitaminer og mineraler i foderrationen til malkekøerne i forhold til fodringsnormen i såvel Danmark som USA uden tilskud... |
| Tipo: Report chapter |
Palavras-chave: Farming Systems; Animal husbandry; Feeding and growth; Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/17915/1/17915.pdf |
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| 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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| Steinshamn, Håvard; Luteberget, Ingvild Steinnes; Jensen, Søren K.; Thuen, Erling. |
| The objective was to compare the effects of supplementing lactating dairy cows with synthetic (All-rac), natural (RRR) α-tocopheryl acetate or seaweed with a control on the concentration of α-tocopherol in blood and milk. Twenty four dairy cows in mid lactation, fed an organic feed ration, were randomly allocated to the four treatments in a replicated Latin square design. Plasma and milk α-tocopherol concentrations were higher in RRR and All-rac than in the other treatments and higher in RRR than in All-rac. RRR-α-tocopherol was the predominant steroisomer (> 86%), in both plasma and milk, whereas the remaining part was largely made up by the three synthetic 2R isomers. In cows fed the control, seaweed and RRR, the proportion of RRR-α-tocopherol in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Feeding and growth; Health and welfare. |
| Ano: 2012 |
URL: http://orgprints.org/21667/1/Steinshamn_et_al_2012_alpha-tocopherol_dairy_cows.pdf |
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| Jensen, Søren K.; Hymøller, L.; Soegaard, Karen; Lindqvist, H.; Nadeau, E.. |
| For at undersøge stabiliteten af vitaminer i moderne ensilage- og høproduktion, har FØJO III projektet ECOVIT, igennem to vækstår, målt vitaminindholdet i forskellige græsmarksafgrøder ved forskellige høsttidspunkter og sletintervaller. Resultaterne viser, at det største tab af vitaminer og umættede fedtsyrer sker i forbindelse med forvejringen, mens tabet i lagringsperioden er begrænset. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Pasture and forage crops. |
| Ano: 2010 |
URL: http://orgprints.org/19767/1/ICROF_Nyt2010_2.pdf |
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| Registros recuperados: 32 | |
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