Grass-clover protein can partly substitute traditional feed protein for broilers

According to a new study from Aarhus University, protein produced by biorefining of grass-clover can replace at least 13 % of the traditional feed protein used for organic broilers without compromising production parameters

Hvorfor og hvordan laver man græsprotein til grisefoder?

Præsentation af perspektiverne i græsproteinproduktion, proteinudbytte og kvalitet af græsprotein

Grønne proteinkilder - perspektiver og udfordringer

Præsentation af perspektiverne i grøn bio-raffinering og de seneste resultater i fodringsforsøg med græsprotein

Effekt av driftsmåte og engalder på kvalitet av kumelk

2007-2008 ble det gjennomført et feltstudie med målsetningen å finne sammenheng mellom engdriftsystem, produksjonssystem og melkekvalitet. Ni gårder med økologisk melkeproduksjon basert på kortvarig eng (KØ) ble paret med 9 gårder med konvensjonell melkeproduksjon basert på kortvarig eng (KK) og 7 gårder med økologisk melkeproduksjon basert på langvarig eng (LØ) ble paret med 7 gårder med konvensjonell melkeproduksjon basert på langvarig eng (LK). Fôrprøver og melkeprøver ble samlet inn annenhver måned. Botanisk sammensetning ble estimert før første slått i 2007. I tillegg ble data fra kukontrollen analysert. Melkeprøvene ble blant annet analysert for fettsyresammensetning, innhold av vitaminer, innhold av selen og innhold av fytoøstrogener. På de konvensjonelle gårdene var det grasarter som dominerte. På de økologiske gårdene var det i tillegg til grasarter en betydelig andel belgvekster (KØ) og urter (LØ). Kvalitetsegenskapene hos melk ble i større grad påvirket av produksjonssystem (økologisk eller konvensjonelt) enn av engdyrkingssystem (kortvarig eller langvarig eng). Det antas at hovedfaktorene var kraftfôrmengde, kraftfôrets innhold av lipider og botanisk sammensetning av grovfôre

Fatty acid characterization of Finnish organic milk - a farm survey

Bulk-tank milk samples were collected in January (2008) from 45 organic farms in Eastern Finland to examine their milk quality during winter feeding

Relationship between grassland management and bovine milk quality

Bulk-tank milk was collected every second month (in 2007) from 32 farms in Middle Norway to examine the effect of grassland management and farming system on milk composition. Sixteen farms with organic farming system were paired with 16 farms with conventional farming system. In both farming systems, 9 farms had short-term rotational grassland and 7 farms had long-term grassland. Milk fatty acid (FA) composition and milk concentration of α-tocopherol, β-carotene, retinol,phytoestrogens and selenium were analyzed. Only small differences were found in milk composition from farms with different grassland management, except for the concentration of phytoestrogens and selenium that were highest on farms with short-term grassland. Milk FA composition, milk concentration of phytoestrogens and selenium were strongly affected by farming system. Milk from organic farming had higher concentration of phytoestrogens, selenium and higher proportion of C18:3n-3, short-chain FA, long-chain FA, saturated FA and lower proportion of C18:0, C18:1n-9, C18:2n-6 and lower n-6/n-3 FA ratio than milk from conventional farming

Effekt av rødkløverbeite eller botanisk allsidig beite på kvalitetsegenskaper hos melk i økologisk drift

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

Investigation of the presence and antinociceptive function of muscarinic acetylcholine receptors in the African naked mole-rat (<i>Heterocephalus glaber</i>)

The present study investigated the cholinergic system in the African naked mole-rat (Heterocephalus glaber) with focus on the muscarinic acetylcholine receptor subtypes M(1) and M(4). The protein sequences for the subtypes m(1–5) of the naked mole-rat were compared to that of the house mouse (Mus musculus) using basic local alignment search tool (BLAST). The presence and function of M(1) and M(4) was investigated in vivo, using the formalin test with the muscarinic receptor agonists xanomeline and VU0152100. Spinal cord tissue from the naked mole-rat was used for receptor saturation binding studies with [(3)H]-N-methylscopolamine. The BLAST test revealed 95 % protein sequence homology showing the naked mole-rat to have the genetic potential to express all five muscarinic acetylcholine receptor subtypes. A significant reduction in pain behavior was demonstrated after administration of 8.4 mg/kg in the formalin test. Administration of 50 mg/kg VU0152100 resulted in a non-significant tendency towards antinociception. The antinociceptive effects were reversed by the muscarinic acetylcholine receptor antagonist atropine. Binding studies indicated presence of muscarinic acetylcholine receptors with a radioligand affinity comparable to that reported in mice. In conclusion, muscarinic acetylcholine receptor subtypes are present in the naked mole-rat and contribute to antinociception in the naked mole-rat

Effect of pasture botanical composition on milk quality in organic production

A continuous grazing experiment with three measurement periods, 3 weeks each, was conducted with 16 Norwegian Red dairy cows in mid lactation to compare milk quality when grazing red clover-grass (R) or botanical diverse pasture (D). The cows were offered either R or D from the start of grazing season in mid May until beginning of September 2008. Milk yield was measured and milk samples were collected in the last week in each period (end of June, beginning of August and end of August). Pasture type had no effect on milk yield and milk content of fat or protein. Cows grazing R had higher proportion of the fatty acids C18:0 (22.41 vs. 9.96, P<0.05) and C18:1t11 (0.58 vs. 0.44 g/100g FAME, P<0.05) and lower proportion of C16:0 (27.83 vs. 30.92, P<0.05) in their milk fat than the cows grazing D. The milk content of α-tocopherol was higher in milk from R than D (3.01 vs. 2.64 μg/ml,P<0.05). The oxidative stability of the milk lipids were only minor affected by pasture typ