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| Registros recuperados: 33 | |
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| Um die Qualität von biologisch- und konventionell produzierten Lebens- und Futtermittel anhand spezifischer Nährstoffe zu bestimmen, wurden bereits viele Studien durchgeführt. Viele dieser Studien zeigten einen tendenziell höheren Gehalt an gewissen Nährstoffen wie z.B. Vitamin C oder bestimmten Polyphenolen in Bio-Lebens- und Bio-Futtermitteln. Was den Zusatznutzen dieses höheren Gehaltes für die menschliche Gesundheit betrifft, besteht jedoch kaum Konsens. Das heisst, dass sich die Fachleute über die für die Gesundheit optimale Einnahme von Nährstoffen bis heute nicht einig sind. Um die Qualität von Bioprodukten beschreiben zu können, werden am FiBL gegenwärtig Fütterungsversuche mit Kaninchen durchgeführt. Neben der Fleischqualität wird auch die... |
| Tipo: Project description |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2024 |
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| Bieber, Anna; Seidel, Kathrin; Wyss, Gabriela S.; Maurer, Veronika; Zeltner, Esther. |
| In order to test the effect of organic vs. conventional diets on fertility traits, we conducted an on-farm study with female rabbits. Eight groups of seven to eight female rabbits kept in systems with litter were fed ad libitum with either organic or conventional pellets. Offspring was weaned with approx. 28 days. In the first series analysed, the conception rate was higher in the conventional groups. Diet type had no significant influence on that trait. Nevertheless, a significant influence of diet on litter size was found: organically fed female rabbits produced more offspring per litter. The organic groups also showed higher rates of weaned animals, despite of a slightly higher mortality of offspring in these groups, but differences for both... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/14097/1/Bieber_14097.pdf |
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| Adler, Steffen A.; Randby, Åshild T.. |
| Feed fatty acid (FA) composition influences the FA composition of cow milk. In a continuous production experiment with 32 Norwegian red dairy cows fishmeal (FM) was compared to peameal (PM) as protein supplement to home-grown cereals and grass silage in organic farming. The protein supplements were together with cereals formulated to be isonitrogeneous and isoenergetic (NEL) and were compared at high (HC) and low concentrate (LC) level. The concentrate rations did not affect the intake of silage. Fishmeal resulted in significantly higher milk yield (kg) with a lower fat concentration (HC) compared to PM. Lower concentrations of urea and FFA were found in milk produced with FM compared to PM. Milk flavour and odour was equal or better when FM rather than PM... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2006 |
URL: http://orgprints.org/10570/1/FA_Adler_Randby_Skjervold_2006_short.pdf |
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| Vae, Anne Holter. |
| Økologisk melk produsert på rødkløvergrasbeite (RB) eller botanisk allsidig beite (AB) ble analysert for fettsyresammensetning, vitamininnhold og oksidativ stabilitet. Hypotesen i forsøket var at melk produsert på RB har et høyere innhold av flerumettede fettsyrer og at melkefettet dermed er mer utsatt for oksidasjon enn melk produsert på AB. Det var også forventet å finne et høyere innhold av vitaminer i melk produsert på RB enn på AB som kan hemme oksidasjonsprosessen. I et kontinuerlig produksjonsforsøk gikk to grupper à åtte kyr (Norsk Rødt Fe) i tre perioder à tre uker på henholdsvis RB (28 % rødkløver, 19 % timotei, 33 % engsvingel, 17 % andre urter) eller AB (21 % hvitkløver, 19 % engrapp, 17 % timotei, 15 % engsvingel, 3 % rødkløver, 9 % andre... |
| Tipo: Thesis |
Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/19034/1/MSc%2DThesis_Anne_Holter_Vae.pdf |
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| Velik, Margit; Breitfuss, Sabine; Urdl, Marc; Hackl, Andrea; Steinwidder, Andreas. |
| Fatty acids have a major impact on nutritional and health issues in humans and can be used as a criteria to access the feeding intensity of livestock production systems. The purpose of the present study was to examine the fatty acid profile of dairy cow milk of different production systems: rations based on (1) maize silage and concentrates, (2) hay and concentrates, (3) continuous grazing on short grass and hay, (4) Alpine pasture systems, (5) milk from Austrian retail markets. About 250 milk samples were analysed. Regarding SFA und n-6 fatty acids, differences between milk origins were at about 10 % moderate. However, n-3 fatty acids and CLA were strongly influenced by production system. Milk from the continuous grazing system had at 1.4 g n-3 and 1.3 g... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2013 |
URL: http://orgprints.org/21294/1/21294_velik.pdf |
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| Horsted, K.; Allesen-Holm, B.H.; Hermansen, J.E.. |
| 1. Studies on the sensory profiling of male broiler breast meat were carried out to evaluate the effect of two very different broiler breeds (JA757 and New Hampshire), two different feed types (broiler and grower feed) and age at slaughter (82 and 110 d). 2. The sensory profiling consisted of a pilot study, 4 training sessions, and finally the assessment. During the training session a panel of 9 assessors defined 17 attributes, which were used to describe the smell, texture and flavour of the breast fillets. Each attribute was evaluated on a 15-cm unstructured line scale. 3. The breast meat became significantly less hard, and more juicy and tender in the New Hampshire at 110 d of age, whereas the opposite was found in JA757, which also acquired a more... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2010 |
URL: http://orgprints.org/18212/3/181212.pdf |
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| Wyss, Ueli; Collomb, Marius. |
| A trial was carried out to investigate the influence of forage from temporary or from permanent grassland as well as permanent grassland supplemented with maize silage on the milk fat composition. The trial lasted seven weeks: two weeks of adaptation period and five weeks of experimental period. The forage was offered ad libitum in the stable. None of the cows received concentrates, only a mineral supplement was added. Both feed intake as well as milk production were recorded daily. Before the trial and three times during the trial milk samples were taken and in addition to the fat, protein and lactose content different fatty acids in the milk fat were analysed. The variant with the forage from the permanent grassland had, in comparison with the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/14054/1/Wyss_14054.pdf |
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| Njastad, Kari Marie. |
| Metabolism of the isoflavones biochanin A, genistein, formononetin, daidzein, equol and prunetin, the lignans matairesinol, secoisolariciresinol, enterodiol and enterolactone and the coumestan coumestrol was investigated to study the metabolism of phytoestrogens in dairy cows, and the possibilities to influence the content in milk. Four Norwegian Red Cows where allocated in a 4x4 latin square with four different silages. Silages had different botanical composition; red clover, botanical diverse, perennial ryegrass and timothy. The concentration of phytoestrogens was measured in feeds, omasum phases, feces, urine and milk by using the liquid chromatography (LC)-mass spectrometry (MS)/MS technique. Metabolism in reticulorumen and in digestive tract as well... |
| Tipo: Thesis |
Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth. |
| Ano: 2011 |
URL: http://orgprints.org/18824/1/MSc%2Doppgave_Kari_NJAASTAD.pdf |
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| de Wit, Jan; de Vries, Anneke. |
| Like in various other countries, organic milk in the Netherlands has higher levels of poly-unsaturated fatty acids, particularly CLA and omega-3, than conventional milk. Monitoring results from a total of 25 farms between 2004 till 2007 are presented. Regression analysis indicates a negative effect of maize silage and positive effects of feeding fresh grass, grass pellets, red clover and addition of oil on CLA levels in milk fat. Results with omega-3 are similar, but omega-3 levels in milk fat seem less related to feed characteristics: the model with feed composition, seasonal effects and farm effects as major parameters, explains a smaller part of the variation, while farm influence is much larger with omega-3 compared to CLA. Farm influence might be... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2008 |
URL: http://orgprints.org/11663/1/DeWit_11663_ed.doc |
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| Wiking, L.; Theil, Peter K.; Nielsen, Jacob H.; Sørensen, Martin T.. |
| The impact of fresh legume types or silage on the composition of milk fatty acids and transcription of enzymes involved in the synthesis of milk fat in cows was studied. Three groups of cows grazed white clover, red clover and lucerne, respectively. A fourth group of cows was fed maize/grass silage. The cows grazing high proportions of legumes produced significantly more C18:1 trans-11, C18:2 cis9-trans11, C18:2 trans10-cis12 and C18:3 fatty acids than cows fed silage. White clover and lucerne grazing resulted in significantly less output of C18:1 trans9 in milk than red clover grazing and maize/grass silages. The transcription of Stearoyl-CoA desaturase (SCD) in mammary tissue was significantly increased by grassing high proportions legume whereas fatty... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/16596/1/16596.doc |
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| Fretté, C.; Kristensen, Troels; Eriksen, J.; Søegaard, Karen; Sørensen, John; Wiking, L.; Nielsen, J.H.. |
| Because of its high saturated fatty acid (FA) content milk fat is considered hypercholesterolemic. Intake of unsaturated FA (UFA) reduces the plasma cholesterol concentrations. Especially conjugated linoleic acids (CLA) have shown positive effects on cardiovascular diseases, prevention of cancer and obesity. The aim of our project is to investigate how grazing can enhance the content of these beneficiary FA in milk. For bith types of cow races we observed no direct effect of increased grazing in the diet on the short chain FA (SCFA) content in milk, implying that the de novo synthesis of these FA remained unaffected. Regarding the content of CLA c9,t11 there was a strong positive effect on Holstein milk (R2 = 0,88), but almost none on Jersey milk when the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/16366/1/16366.pdf |
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| Adler, Steffen; Steinshamn, Håvard; Jensen, Søren K.. |
| Fettsyresamensetning og innhold av vitaminer i melk ble i stor grad påvirket av sesong og produksjonssystem og i mindre grad av engalder. Beitesesongen hadde gunstig effekt på fettsyresammensetning sammenlignet med innefôringsperioden, mens økologisk driftsform hadde gunstige effekter som økt andel av C18:3c9,12,15 og negative effekter som økt andel mettede fettsyrer. Hovedfaktorene bak de observerte effektene antas å være fôrrasjonens andel av kraftfôr, beiteopptak, rødkløver og kraftfôrets innhold av lipider. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle Pasture and forage crops Food security; Food quality and human health Feeding and growth. |
| Ano: 2011 |
URL: http://orgprints.org/18819/1/Adler_Driftsm%C3%A5te_og_engalder_HFM11.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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| Huber, Beate; Liebl, Boris; Mäder, Rolf; Schneider, Heike; Schulz, Joachim. |
| Gesamtziel des Vorhabens war die Beschreibung eines Qualitätssicherungssystems für Öko-Futtermittel, verknüpft mit dem Ziel, die Produktsicherheit für die Hersteller und Anwender von Öko-Futtermitteln zu erhöhen. Der im Rahmen dieses Projektes erarbeitete Leitfaden "Qualitätssicherung Öko-Futtermittel" ist ein umfassendes Kompendium, welches alle notwendigen Schritte zu einer systematischen Qualitätssicherung von Öko-Futtermitteln beschreibt. Moderne Prinzipien der Qualitätssicherung, nämlich Eigenkontrolle und Risikoorientierung, finden ausdrücklich Berücksichtigung. Die strenge Orientierung an der EU-Öko-Futtermittelverordnung stellt für den Leitfadennutzer sicher, dass die Anforderungen des Gesetzgebers mit Hilfe dieses Handbuchs erfüllt werden können.... |
| Tipo: Report |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2003 |
URL: http://orgprints.org/4791/1/4791%2D02OE408%2Dble%2Dfibl%2D2003%2Dfuttermittel%2Dbericht.pdf |
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| Registros recuperados: 33 | |
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