SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Grønt kalvekød er ikke mørkerødt

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

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.

Self-sufficiency with vitamins and minerals on organic dairy farms

Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.

Ano: 2012

URL: http://orgprints.org/22051/7/22051.pdf

Mogensen, L.; Kristensen, T.; Søegaard, K.; Jensen, S.K..

Self-sufficiency of nutrients is a central element in the organic farming principles. In a project involving five private organic dairy farms, we aimed to achieve self-sufficiency in vitamins and minerals at farm level. All the herds are fed 100% organically grown feed, but so far supplements of minerals and vitamins based on inorganic and synthetic products are imported to all farms. The same level and type of supplement was used for the cows all year round, even though all cows were on grass for at least 150 days during the summer period. The average daily intake from the supplement for a lactating cow was 751 mg E vitamin, 111 mg Cu, and 558 mg Zn. The content of vitamin and minerals in the home-grown feeds was modelled taking into account the effect...

Fatty acid composition, fat-soluble vitamin concentrations and oxidative stability in bovine milk produced on two pastures with different botanical composition

Palavras-chave: Dairy cattle; Feeding and growth.

Ano: 2009

URL: http://orgprints.org/16297/4/Mogensen_2009_vitamins.pdf

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

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

Fatty Acids, α-Tocopherol, β-Carotene and Lutein Contents in Forage Legumes, Forbs, and a Grass-Clover Mixture

Micro-mineral profile in different grassland species

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

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...

Green veal is not dark red

Palavras-chave: Pasture and forage crops.

Ano: 2010

URL: http://orgprints.org/17831/4/17831.pdf

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.

Eating quality of bull calves fed only grass or herbs match that of concentrate-fed veal calves

Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.

Ano: 2012

URL: http://orgprints.org/22050/7/22050.pdf

The meat from herb calves contained less oleic acid and more linolenic acid compared with conventional calves.

Effect of silage botanical composition on ruminal biohydrogenation and transfer of fatty acids to milk in dairy cows

Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.

Ano: 2012

URL: http://orgprints.org/22048/6/22048.pdf

URL: http://orgprints.org/23129/1/Adler%20et%20al%202013%20Silage%20bot%20comp%20ruminal%20biohydrogenation.pdf

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

Meat quality of hull calves fed only grass or only herbs for 8 weeks prior to slaughter matches that of concentrate-fed bull calves

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-...

Vitamin contents in forage herbs

Palavras-chave: Farming Systems; Animal husbandry.

Ano: 2012

URL: http://orgprints.org/22054/3/22054.pdf

Grasslands provide an important part of the feed used by domestic and wild ruminants. Fresh forages are an important natural source of vitamins in ruminant diets. Most studies in forages have been carried out with perennial ryegrass and legume species such as white clover. As yield and quality data of broad-leaf grassland species are scarce, the aim of this study was to obtain novel information on vitamins in a number of herb species compared to a grass-clover mixture and to get insight into species differences and seasonal patterns across the various harvests and years. Seven herb species and a perennial ryegrass-white clover mixture were investigated in a cutting trial with four harvests (May–Oct) during 2009 and 2010. Vitamin concentrations were highest...

Tipo: Journal paper

Palavras-chave: Pasture and forage crops.

Ano: 2012

URL: http://orgprints.org/24762/8/24762.pdf

Dyrkning af kløvergræs

Søegaard, K.; Rasmussen, J.; Sehested, J.; Jensen, S.K.; Eriksen, J.

Vitaminer, mineraler og foderværdi i forskellige græsmarksarter samt bælgplanternes N-dynamik samt kløvertræthed

Eating quality of Holstein bull calves fed only grass or purely herbs matches that of concentrate-fed veal calves

Palavras-chave: Pasture and forage crops.

Ano: 2011

URL: http://orgprints.org/20621/4/20621.pdf

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.

Hvor skal de bæredygtige proteiner og livsnødvendige aminosyrer komme fra?

Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.

Ano: 2012

URL: http://orgprints.org/22049/7/22049.pdf

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.

Herbage dry-matter production and forage quality of three legumes and four non-leguminous forbs grown in single-species stands

Palavras-chave: Feeding and growth.

Ano: 2017

URL: http://orgprints.org/31786/1/oekologi-forskning-oekologi-erhverv-nr-609

Effect of organic pig production systems on performance and meat quality

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

How can the organic dairy farmer be self-sufficient with vitamins and minerals?

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

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.

Grønt kalvekød er ikke mørkerødt

Palavras-chave: Dairy cattle.

Ano: 2008

URL: http://orgprints.org/12233/1/Mogensen_12233_ed.doc

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.

Vitamin and mineral content and feeding value of different legumes and grass species grown in seven legume-grass mixtures

Palavras-chave: Farming Systems Food security; Food quality and human health Animal husbandry.

Ano: 2012

URL: http://orgprints.org/22052/6/22052.pdf

Søegaard, K.; Sehested, J.; Jensen, S.K..

The aim was to examine if including a range of grassland species could help to balance the diet on organic dairy farms compared with traditional mixtures. Four different grass species and four legume 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, vitamin and fiber profiles and organic matter digestibility, not influenced by year. Among the legumes red clover (Trifolium pratense) and white clover (Trifolium repens) had the highest feeding value and red clover had further a high content of Co, Cu and Zn. Lucerne (Medicago sativa) had as red clover a high growth potential in mixture but had in general a low content of macro and micro minerals with...

Seasonal fluctuation in concentrations of α-tocopherol and β-carotene in forage herb and legume species and a grass-clover mixture

Palavras-chave: Pasture and forage crops.

Ano: 2010

URL: http://orgprints.org/17832/4/17832.pdf

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...