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| Registros recuperados: 69 | |
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| Naadland, Sondre Stokke; Steinshamn, Håvard; Randby, Åshild T.. |
| Under Norwegian conditions, diets based on primary growth (PG) silage typically increase milk yield compared to silage prepared from the regrowth (RG). Organic PG, dominated by immature grasses, is often high in energy and low in crude protein (CP), whereas the opposite is the case for organic RG harvests, dominated by clover. Here, we tested the hypotheses that increasing proportions of RG will reduce the total supply of metabolizable energy, but increase the CP intake, and that there is a dietary optimal mix of PG and RG to meet requirements for optimal milk production. Sixteen Norwegian Red cows were used in an experiment designed with four balanced 4 × 4 Latin squares with 21-day periods to evaluate the effect of incremental replacement of PG with RG... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Feeding and growth. |
| Ano: 2017 |
URL: http://orgprints.org/30594/1/Naadland%20et%20al%202016%20Replacing%20organic%20grass%20clover%20silage%20from%20PG%20with%20RG.pdf |
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| Adler, Steffen A.; Steinshamn, Håvard. |
| Sammenhengen mellom engdriftssystemer og melkekvalitet i økologisk landbruk skal undersøkes i et nytt prosjekt. Valget mellom kortvarig og langvarig eng er avgjørende for den botaniske sammensetningen i drøvtyggerfôret og en kan forvente at melkas kvalitetsegenskaper påvirkes. Tolv økologiske melkebruk ble paret med 12 konvensjonelle i Midt-Norge og inngår i en toårig feltstudie som startet i januar 2007. Seks gårder i hver gruppe er valgt ut blant gårder med kortvarig eng og 6 blant gårder med langvarig eng. Annenhver måned skal det samles inn melkeprøver fra gårdstanken og fôrprøver på alle gårdene. Melkeprøvene vil bli analysert for fettsyresammensetning, oksidativ stabilitet, vitaminer, fytoøstrogener, sensorisk kvalitet og innhold av mikromineraler. I... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2007 |
URL: http://orgprints.org/10569/1/Bioforsk_Fokus_2_1_48%2D49.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; Thuen, Erling. |
| Red (RC) or white (WC) clover were grown in mixture with grasses, ensiled and offered to dairy cows in early lactation over two successive years (48 cows per year) to compare grassland yield, feed intake, milk production and milk quality. The crops were ensiled in round bales and proportional mixtures of the second and third cut prepared each year were used to ensure that the silage treatments were representative of the crop. In addition to silage type, concentrate supplementation, without and with (10 kg/day), was included as a factor in a 2×2 factorial, continuous experiment. Total dry matter (DM) yield, silage chemical composition and totalDMintake was hardly affected by silage type. There was no effect of silage type on milk yield and milk constituents... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Dairy cattle Feeding and growth. |
| Ano: 2008 |
URL: http://orgprints.org/13811/1/SteinshamnLIVSCI687.pdf |
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| 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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| Blomstrand, Berit Marie; Ptochos, Sokratis; Enemark, Heidi; Thamsborg, Stig Milan; Aasen, Inga Marie; Steinshamn, Håvard; Athanasiadou, Spiridoula. |
| Gastrointestinal nematodes (GIN) in sheep are a common cause of reduced animal welfare and performance, and thus, high economical losses. The emerging drug resistance in GIN prompts for new methods in combating infections. Several studies have indicated an anti-parasitic effect of tannin-rich plants when included in the diet. The objective of this study was to assess the potential in vitro anthelmintic efficacy of tannin-rich extracts from bark of common Norwegian trees (spruce and pine) against GIN of sheep. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Sheep and goats; Health and welfare. |
| Ano: 2018 |
URL: http://orgprints.org/35025/1/Poster%20COMBAR%20Sept%202018.pdf |
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| Adler, Steffen A.; Steinshamn, Håvard. |
| Cows fed red clover yield milk with high concentrations of the isoflavandiol equol, a phytoestrogen with high estrogen potency. Soy products have much higher content of isoflavones than milk, but not all humans are able to produce equol from isoflavones. Many plant lignans can be metabolised to enterolactone, and milk concentrations tend to be higher during grazing season than indoor feeding season. Therefore, milk produced on feed containing red clover and milk produced on pasture may be considered a functional food. However, more documentations on possible effects in humans, including unwanted side effects are needed. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2017 |
URL: http://orgprints.org/31380/1/Adler%20NJF%20RT%20SA.docx |
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| Adler, Steffen; Steinshamn, Håvard. |
| Thirty-two dairy farms in Middle-Norway with different grassland systems (short-term (<4 years) grassland (S) or long-term (>7 years) grassland (L)) and different production systems (organic (O) or conventional (C)) were compared in a field study in 2007. In a principal component analysis on variables including farm details, botanical composition and chemical forage composition, the farms were separated into organic and conventional farms with the exception of one farm. Amongst the organic farms most SO farms were distinguished from LO farms. Concentration of forage crude protein was positively correlated with proportion of grass. Concentration of non-fibrous carbohydrates, in vitro digestibility and net energy lactation was positively correlated... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Pasture and forage crops. |
| Ano: 2010 |
URL: http://orgprints.org/17497/1/149_Adler_AH.pdf |
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| Adler, Steffen; Dahl, A.V.; Vae, A.H.; Thuen, E.; Garmo, T.; Krogh-Jensen, S.; Hansen-Møller, J.; Steinshamn, Håvard. |
| Milk samples from sixteen Norwegian Red dairy cows grazing mixed swards of either grass-red clover (GR) or mixed swards of sown and unsown species of grass, clover and other herbs (GCH) were collected during four periods. Both pastures were organically managed. Pasture botanical composition had no effect on milk fat, protein or vitamin concentration and only minor effects on fatty acid composition. Milk from GR had higher concentrations of the phytoestrogens equol, genistein and biochanin A than the milk from GCH. Concentrations of equol in milk from GR were higher than concentrations reported from experiments with red clover silage. The oxidative stability of the milk lipids was not affected by pasture type. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Pasture and forage crops; Feeding and growth. |
| Ano: 2010 |
URL: http://orgprints.org/17493/1/147_Adler_AH.pdf |
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| Registros recuperados: 69 | |
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