α-Tocopherol in plasma and milk from organically managed dairy cows fed natural or synthetic vitamin E or seaweed

The objective was to compare the effects of supplementing lactating dairy cows with synthetic (All-rac), natural (RRR) α-tocopheryl acetate or seaweed with a control on the concentration of α-tocopherol in blood and milk. Twenty four dairy cows in mid lactation, fed an organic feed ration, were randomly allocated to the four treatments in a replicated Latin square design. Plasma and milk α-tocopherol concentrations were higher in RRR and All-rac than in the other treatments and higher in RRR than in All-rac. RRR-α-tocopherol was the predominant steroisomer (> 86%), in both plasma and milk, whereas the remaining part was largely made up by the three synthetic 2R isomers. In cows fed the control, seaweed and RRR, the proportion of RRR-α-tocopherol in plasma and milk constituted more than 97% of the total α-tocopherol. The study demonstrated that dairy cows in mid and late lactation have preferential uptake of RRR-α-tocopherol compared to other stereoisomer

Radiations from cerium-141

Information obtained by examining radiations emitted from radioactive isotopes is of value in checking various nuclear theories. In this work, the radiations from ,Ce have been investigated; a tentative decay scheme is indicated which gives an assignment of energy levels, sequence of emission, total angular momentum, and parity

PhytoMilk - Open seminar

Programme for open seminar for the PhytoMilk project held at Studentersamfundet, UMB, Ås, Norway, 23 June 201

Heritability and Genetic Correlations of Fear-Related Behaviour in Red Junglefowl–Possible Implications for Early Domestication

Domesticated species differ from their wild ancestors in a number of traits, generally referred to as the domesticated phenotype. Reduced fear of humans is assumed to have been an early prerequisite for the successful domestication of virtually all species. We hypothesized that fear of humans is linked to other domestication related traits. For three generations, we selected Red Junglefowl (ancestors of domestic chickens) solely on the reaction in a standardized Fear of Human-test. In this, the birds were exposed for a gradually approaching human, and their behaviour was continuously scored. This generated three groups of animals, high (H), low (L) and intermediate (I) fearful birds. The birds in each generation were additionally tested in a battery of behaviour tests, measuring aspects of fearfulness, exploration, and sociality. The results demonstrate that the variation in fear response of Red Junglefowl towards humans has a significant genetic component and is genetically correlated to behavioural responses in other contexts, of which some are associated with fearfulness and others with exploration. Hence, selection of Red Junglefowl on low fear for humans can be expected to lead to a correlated change of other behavioural traits over generations. It is therefore likely that domestication may have caused an initial suite of behavioural modifications, even without selection on anything besides tameness

The Disintegration of Praseodymium 142

The radiations from Pr-142 have been examined with a thin lens spectrometer. One gamma-ray was found having an energy of 1.576 Mev. The beta-spectrum is complex, the two groups observed having maximum kinetic energies of 2.154 Mev and 0.636 Mev. It is suggested that the high energy beta-group gives a transition to the ground state of Nd-142 and that the gamma-ray follows the low energy beta-transition. The half-life was found to be 19.1 hr. The electron distribution produced by bremsstrahlung, due to the absorption of the beta-rays, was observed

The beta-spectra of P-32 and P-33

The beta-spectrum of P-32 has been examined with a thin-lens spectrometer. The maximum energy of the 14.3-day beta activity, as determined from several Kurie plots, was found to be 1.704 +/- 0.008 Mev. The Kurie plots gave excellent straight lines from the maximum beta-energy to about 0.26 Mev. In phosphorus samples prepared from neutron irradiated sulfur an additional beta-activity was observed having a maximum energy of 0.26 +/- 0.02 Mev and a half-life of 24.8 +/- 0.5 days. This low-energy beta-group was also observed in phosphorus samples prepared from sulfur and lithium chloride irradiated with X-rays having a maximum energy of 68 Mev. The low-energy beta-group was not observed in phosphorus samples prepared from sulfur irradiated with deuterons or phosphorus irradiated with neutrons . The low-energy beta-group is ascribed to P-33

Sproghistorie i Almen sprogforståelse (AP) i gymnasiet. En bro til sprogstudier på universitetet?

Forløbet i Almen Sprogforståelse (AP) kom ind i det almene gymnasium (stx) med gymnasiereformen i 2005. Det ligger i starten af gymnasieforløbet og skal introdu- cere til undervisningen i sprog. I AP arbejdes der med kernestof, der er fælles for gymnasiets sprogfag, og der indgår en introduktion til latin. (...