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| Slots, T.; Butler, G.; Leifert, C.; Kristensen, T.; Skibsted, L.H.; Nielsen, J.H.. |
| To investigate the effect of the dietary intake of the cow on milk composition, bulk-tank milk was collected on 5 occasions from conventional (n = 15) and organic (n = 10) farms in Denmark and on 4 occasions from low-input nonorganic farms in the United Kingdom, along with management and production parameters. Production of milk based on feeding a high intake of cereals, pasture, and grass silage resulted in milk with a high concentration of α-linolenic acid (9.4 ± 0.2 mg/ kg of fatty acids), polyunsaturated fatty acids (3.66 ± 0.07 mg/kg of fatty acids), and natural stereoisomer of α-tocopherol (RRR-α-tocopherol, 18.6 ± 0.5 mg/kg of milk fat). A milk production system using a high proportion of maize silage, by-products, and commercial concentrate mix was... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Dairy cattle Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/16018/3/16018.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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| Leiber, Florian; Kreuzer, Michael; Scheeder, Martin R.L.; Wettstein, Hans-Ruedi. |
| In two experiments it was investigated which factors to what extent determine the fatty acid composition milk when cows are grazing high alpine pastures. The influences of altitude per se, of alpine forage quality, of concentrate-free diet type and of the overall grazing effect were separated by the experimental design. The most important factor which significantly elevated the concentrations of CLA, α-linolenic acid (ALA) and n-3 PUFA in milk fat was found to be the alpine diet type, i.e. the feeding of roughage-only (as well hay as pasture of as well lowland as alpine origin) with omission of concentrates and maize. Additionally a clear positive effect of the forage quality of alpine pastures on ALA concentration in milk fat was found. The latter effect... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Dairy cattle Feeding and growth. |
| Ano: 2005 |
URL: http://orgprints.org/3659/1/3659.pdf |
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| Adler, Steffen; Dahl, A.; Steinshamn, H.; Thuen, E.; Garmo, T.; Krogh-Jensen, S.. |
| Et kontinuerlig beiteforsøk med 3 perioder à 3 uker ble gjennomført med 16 NRF-kyr i midtlaktasjonen. Målsetningen var å sammenligne melkequalitet når kyrne beitet rødkløvergras (RB) eller botanisk allsidig beite (AB). beitetype hadde ingen effekt på ytelse, melkas fettinnhold eller proteininnhold. Kyr som beitet RB hadde en høyere andel av fettsyrene C18:0 (22.41 vs. 9.96, P<0.05) og C18:1t11 (0.58 vs. 0.44 g/100g FAME, P<0.05) og lavere andel C16:0 (27.83 vs. 30.92, P<0.05) i melkefettet sammenlignet med kyr som beitet AB. Innholdet av alfatokoferol var høyere i melk fra RB enn AB (3.01 vs. 2.64 µg/ml, P<0.05). Den oksidative stabiliteten av melkas lipider ble bare i mindre grad påvirket av beitetype. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops Food security; Food quality and human health Dairy cattle Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/16861/1/Adler_etal_2009_rodklovebeite_eller_bot_alls_beite_og_mjolkekvalitet_HFM2009.pdf |
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| Ehrlich, Dipl Ing. Maria Elisabeth. |
| In der vorliegenden Arbeit wurden 18 Konsummilchproben vom Februar 2006 von 15 Molkereien (6 ökologische und 9 konventionelle Milchproben) sowie 13 Tankmilchproben von 13 Milchviehbetrieben in drei definierten Regionen Deutschlands auf ihre Fettsäurezusammensetzung (u.a. CLA, Omega-3-Fettsäuren) und Kohlenstoffsignatur untersucht. Bei der Konsummilch wurde bevorzugt solche Milch ausgewählt, die mit besonderen Imagequalitäten beworben wird (z.B. „Alpenmilch“, „Bergbauernmilch“, „Landmilch“). Bei der Betriebsauswahl für die Tankmilchproben wurden pro Region jeweils zwei konventionelle und zwei ökologische Betriebe mit jeweils möglichst unterschiedlicher Bewirtschaftung ausgewählt (extensive versus intensive Bewirtschaftung). Die sofort nach Probenziehung... |
| Tipo: Thesis |
Palavras-chave: Food security; Food quality and human health Dairy cattle Feeding and growth. |
| Ano: 2006 |
URL: http://orgprints.org/10446/1/Materarbeit_Maria_Ehrlich.pdf |
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