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Registros recuperados: 23
Primeira ... 12 ... Última
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Alpha-tocopherol and b-carotene in legume–grass mixtures as influenced by wilting, ensiling and type of silage additive Organic Eprints
Lindqvist, H.; Nadeau, E.; Jensen, S.K..
Effects of wilting, ensiling and type of additive on atocopherol 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)1 and ensiled without additive or with an inoculant or acid. Wilting decreased a-tocopherol concentration by 30% in the Bft + Ti mixture (P = 0x015). Untreated Bft + Ti silage had higher a-tocopherol content than red clover silages (56x9 vs. 34x2 mg kg)1 DM; P = 0x015). The a-tocopherol concentration of Bft + Ti silages increased during ensiling from 41x1 mg kg)1 DM in wilted herbage to 56x9, 65x2 and...
Tipo: Journal paper Palavras-chave: Pasture and forage crops.
Ano: 2011 URL: http://orgprints.org/19452/1/gfs_8271.pdf
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Dyrkning af kløvergræs Organic Eprints
Søegaard, K.; Rasmussen, J.; Sehested, J.; Jensen, S.K.; Eriksen, J.
Vitaminer, mineraler og foderværdi i forskellige græsmarksarter samt bælgplanternes N-dynamik samt kløvertræthed
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2011 URL: http://orgprints.org/20621/4/20621.pdf
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Eating quality of bull calves fed only grass or herbs match that of concentrate-fed veal calves Organic Eprints
Therkildsen, M.; Jensen, S.K.; Vestergaard, M..
The meat from herb calves contained less oleic acid and more linolenic acid compared with conventional calves.
Tipo: Conference paper, poster, etc. Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.
Ano: 2012 URL: http://orgprints.org/22048/6/22048.pdf
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Eating quality of Holstein bull calves fed only grass or purely herbs matches that of concentrate-fed veal calves Organic Eprints
Therkildsen, M.; Jensen, S.K.; Vestergaard, M..
Organic meat production from Holstein calves born in dairy herds require that the bull calves are raised outdoor at least 6 months a year, and on large quantities of roughage in the diet. This study aimed at elucidating if Holstein bull calves fed either purely grass or purely herbs prior to slaughter would differ in meat quality traits, fatty acid composition and sensory profile and if they differed in quality aspects from concentrate-fed veal calves.
Tipo: Conference paper, poster, etc. Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.
Ano: 2012 URL: http://orgprints.org/22049/7/22049.pdf
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Effect of organic pig production systems on performance and meat quality Organic Eprints
Hansen, L.L.; Claudi-Magnussen, C.; Jensen, S.K.; Andersen, H.J..
The present study was carried out to establish knowledge of consequence for setting up guidelines of importance for production of competitive organic pork of high quality. Performance and meat quality characteristics were compared between three organic pig production systems based on indoor housing with access to an outdoor area and a Danish conventional indoor system including 100% concentrate during the finishing feeding stage. The three organic systems used the following three feeding regimes: 100% organic concentrate according to Danish recommendations, 70% organic concentrate (restricted) plus ad libitum organic barley/pea silage and 70% organic concentrate (restricted) plus ad libitum organic clover grass silage, respectively. With exception of a...
Tipo: Journal paper Palavras-chave: Feeding and growth.
Ano: 2006 URL: http://orgprints.org/10016/1/10016.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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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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Fatty Acids, α-Tocopherol, β-Carotene and Lutein Contents in Forage Legumes, Forbs, and a Grass-Clover Mixture Organic Eprints
Elgersma, A.; Søegaard, K.; Jensen, S.K..
Fresh forages are an important natural source of vitamins and fatty acids in ruminant diets, and their concentrations in forage species are important for the quality of animal-derived foods such as dairy and meat products. The aims of this study were to obtain novel information on vitamins and fatty acids (FA) in a variety of forage legumes and non-legume forb species compared to a grass−clover mixture and to explore implications for animal-derived products. Seven dicotyledons [four forbs (salad burnet (Sanguisorba minor), caraway (Carum carvi), chicory (Cichorium intybus), and ribwort plantain (Plantago lanceolata)) and three legume species (yellow sweet clover (Melilotus officinalis), lucerne (Medicago sativa), and birdsfoot trefoil (Lotus...
Tipo: Journal paper Palavras-chave: Pasture and forage crops.
Ano: 2013 URL: http://orgprints.org/24764/7/24764.pdf
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Green veal is not dark red Organic Eprints
Therkildsen, M.; Jensen, S.K.; Vestergaard, M..
Among many farmers, butchers and consumers, the expectation is that meat arising from grazing cattle generally is darker than meat from cattle primarily fed cereals. Without necessarily being the truth, this dogma is a constraint to the marketing of ‘green’ meat. In an attempt to increase the supply of organic meat from young cattle, we need to know which quality parameters are the characteristics for this type of meat, including colour characteristics.
Tipo: Newspaper or magazine article Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.
Ano: 2012 URL: http://orgprints.org/22050/7/22050.pdf
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Grønt kalvekød er ikke mørkerødt Organic Eprints
Therkildsen, M.; Jensen, S.K.; Vestergaard, M..
Blandt mange landmænd, slagtere og forbrugere er forventningerne, at kød fra græssende kvæg er mørkere end kød fra kvæg primært fodret med kraftfoder. Dette er ikke nødvendigvis sandt, men dette dogme florerer og er en begrænsning i markedsføringen af "grønt" kød. For at kunne øge forbruget af økologisk kød fra ungkvæg er vi nødt til at vide,hvilke kvalitetsparametre og hvilke karakteristika, der er gældende for denne type af kød - herunder også kødfarve.
Tipo: Newspaper or magazine article Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.
Ano: 2012 URL: http://orgprints.org/22051/7/22051.pdf
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Grønt kalvekød er ikke mørkerødt Organic Eprints
Therkildsen, M.; Jensen, S.K.; Vestergaard, M..
Forsøg har vist, at græs/urte-fodring til økologiske slagtekalve i en to-måneders periode forud for slagtning kan forbedre fedtsyresammensætning og vitaminindholdet i kødet. Desuden giver fodringen mørt kød med en god smag og viser ingen tegn på, at kødet skulle blive mørkere. Disse resultater er vigtige i markedsføringen af økologisk produceret kalve- og oksekød.
Tipo: Newspaper or magazine article Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.
Ano: 2012 URL: http://orgprints.org/22052/6/22052.pdf
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Grønt kalvekød er ikke mørkerødt Organic Eprints
Therkildsen, M.; Jensen, S.K.; Vestergaard, M..
Forsøg har vist, at græs/urte-fodring til økologiske slagtekalve i en to-måneders periode forud for slagtning kan forbedre fedtsyresammensætning og vitaminindholdet i kødet. Desuden giver fodringen mørt kød med en god smag og viser ingen tegn på, at kødet skulle blive mørkere. Disse resultater er vigtige i markedsføringen af økologisk produceret kalve- og oksekød.
Tipo: Newspaper or magazine article Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.
Ano: 2012 URL: http://orgprints.org/22053/6/22053.pdf
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Herbage dry-matter production and forage quality of three legumes and four non-leguminous forbs grown in single-species stands Organic Eprints
Elgersma, A.; Søegaard, K.; Jensen, S.K..
Agronomic data on most broad-leaved species of grasslands are scarce. The aim of this study was to obtain novel information on herbage DM yield and forage quality for several forb species, and on species differences and seasonal patterns across harvests and in successive years. Four non-leguminous forbs [salad burnet (Sanguisorba minor), caraway (Carum carvi), chicory (Cichorium intybus) and ribwort plantain (Plantago lanceolata)] and three leguminous forbs [yellow sweet clover (Melilotus officinalis), lucerne (Medicago sativa) and birdsfoot trefoil (Lotus corniculatus)] and a perennial ryegrass–white clover mixture were investigated in a small-plot cutting trial in Denmark during 2009 and 2010. Plots were harvested four times per year. On average, annual...
Tipo: Journal paper Palavras-chave: Pasture and forage crops.
Ano: 2014 URL: http://orgprints.org/24763/7/24763.pdf
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How can the organic dairy farmer be self-sufficient with vitamins and minerals? Organic Eprints
Mogensen, L.; Kristensen, T.; Søegaard, K.; Jensen, S.K..
The aim of the present paper is to present a prototype of a decision support model simulating the feed and vitamin supply during a year on a farm self-sufficient with feed. The model takes into account that the content of vitamin and minerals depends on choice of crops, conservation method, season, plant development at harvest, quality of the silage production, and duration of storage together with traditional optimizing of the feeding scheme.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle.
Ano: 2008 URL: http://orgprints.org/12233/1/Mogensen_12233_ed.doc
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Hvor skal de bæredygtige proteiner og livsnødvendige aminosyrer komme fra? Organic Eprints
Jensen, S.K..
Den store stigning i økologisk svine- og fjerkræproduktion og den samtidige overgang til 100 pct. økologisk fodring udfordrer en bæredygtig og afbalanceret proteinforsyning til dyrene.
Tipo: Newspaper or magazine article Palavras-chave: Feeding and growth.
Ano: 2017 URL: http://orgprints.org/31786/1/oekologi-forskning-oekologi-erhverv-nr-609
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Influence of genotype and feeding strategy on pig performance, plasma concentrations of micro nutrients, immune responses and fecal microbiota composition of growing-finishing pigs in a forage-based system Organic Eprints
Kongsted, A.G.; Nørgaard, J.V.; Jensen, S.K.; Lauridsen, C.; Juul-madsen, H.R.; Norup, L.R.; Engberg, R.G.; Horsted, K.; Hermansen, J.E..
Among consumers in Europe and other parts of the world there is an increasing interest in high-value pork positioned with regard to animal welfare (Krystallis et al., 2012). Free-range pork production is considered more animal friendly because the system enables the animals to express their natural behaviour to a large degree. However, outdoor production of growing-finishing pigs on pastures as described by Halberg et al. (2010) has a major drawback in terms of high risk of nitrate leaching (Eriksen et al., 2006ab; Salomon et al., 2007). This is to a large extent related to high stocking densities combined with large input of nutrients from the supplementary feed (Eriksen et al., 2006ab). The use of supplementary feed is often higher in free-range compared...
Tipo: Journal paper Palavras-chave: Pigs.
Ano: 2014 URL: http://orgprints.org/27396/9/LIVSCI-D-14-1065.pdf
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Meat quality of hull calves fed only grass or only herbs for 8 weeks prior to slaughter matches that of concentrate-fed bull calves Organic Eprints
Vestergaard, M.; Jensen, S.K.; Therkildsen, M..
The organic rules require that bull calves are raised outdoor at least 6 months a year in Denmark and are fed at least 60% roughage of the total diet. These rules are a constraint for an organic production of beef based on the bull calves born in the organic dairy herds because of extra labor costs, expected lower growth rate, difficulties in raising bull calves outdoor, possibly lower meat quality and lack of sufficiently high organic premium payment for the carcass. Thus, the bull calves are sold for conventional fattening. The supply of organic beef from young cattle is concomitantly very limited. However, in order to obtain the necessary higher payment for beef from organic-raised young cattle, it is important that consumers like the beef from grass-...
Tipo: Conference paper, poster, etc. Palavras-chave: Farming Systems; Animal husbandry.
Ano: 2012 URL: http://orgprints.org/22054/3/22054.pdf
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Micro-mineral profile in different grassland species Organic Eprints
Søegaard, K.; Sehested, J.; Jensen, S.K..
The aim was to investigate the micro-mineral profile of herbage as affected by grassland species, cutting time and seasonality and in relation to dairy cow requirements. The different grassland species were grown and harvested in mixtures with one grass and one legume for two growing seasons. The species turned out to have very individual mineral profiles, not influenced by year. Among the legumes red clover (Trifolium pratense) had high concentrations of Co, Cu and Zn, white clover (Trifolium repens) of Mn and Fe, lucerne (Medicago sativa) of Se and lotus (Lotus corniculatus) of Co, Mn, Zn and Fe. Among the grasses perennial ryegrass (Lolium perenne) generally had the highest concentrations of all the micro-minerals. Hybrid ryegrass (Lolium hybridum) had...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2010 URL: http://orgprints.org/17831/4/17831.pdf
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Seasonal fluctuation in concentrations of α-tocopherol and β-carotene in forage herb and legume species and a grass-clover mixture Organic Eprints
Elgersma, A.; Søegaard, K.; Jensen, S.K..
Most studies in forages have been carried out with perennial ryegrass and legume species such as white clover. Recently, alfa-tocopherol and beta-carotene in a number of dicotyledonous forage species were compared to a grass-clover mixture. To develop management guidelines, insight into seasonal patterns across the various harvests and years is important. Therefore, four herb species, three legumes and a perennial ryegrass-white clover mixture were investigated in a cutting trial with four harvests (May-Oct) during 2009 and 2010. Concentrations of alfa-tocopherol and beta-carotene were highest in October and lowest in July. Biodiverse pastures could have added benefits in farming practice as various herbs outperformed the grass-clover mixture regarding...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2013 URL: http://orgprints.org/24710/6/24710.pdf
Registros recuperados: 23
Primeira ... 12 ... Última
 

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