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Icken W.,Lohmann Tierzucht GmbH | Cavero D.,Lohmann Tierzucht GmbH | Thurner S.,Institute For Landtechnik Und Tierhaltung | Schmutz M.,Lohmann Tierzucht GmbH | And 2 more authors.
Archiv fur Geflugelkunde | Year: 2011

From field reports and scientific papers, it is known that sunlight can have an effect on the egg shell colour of brown layers. Therefore, on the basis of up to 243 brown layers with individual recordings, the relation between the time spent in a winter garden and egg shell colour were analysed in this study. The effect daylight was represented by the average time which each single hen spent in a winter garden between 10 a.m. and 3 p.m. per day. The number of days with shell colour recordings range between 11 and 15 days per flock. The hens of flocks 1 and 2 were tested at an age of 25 to 28 weeks, whereas the hens of flock 3 were already 47 weeks old. During data recording, the season was the same for all hens. The average duration of stay per hen and day varied for each flock between one and a half to nearly two and a half hours. For the hens of flock 1, which when compared to the others, spent the shortest time span outside, the eggs had the darkest average shell colour index. In regard to this relationship, more detailed information was expected from a regression analysis. However, widely spread dots, with a very low negative tendency for one of the tested flocks did not give the desired results. A highly significant influence of the duration in the winter garden on the egg shell colour index was also only estimated for two of the three tested flocks. A negative genetic correlation of r g = -0.54, confirms the assumingly negative relationship. However, it is not possible to emphasise that in general daylight makes egg shell paler. © Verlag Eugen Ulmer, Stuttgart. Source


Neumaier G.,Institute For Landtechnik Und Tierhaltung | Frohlich G.,Institute For Landtechnik Und Tierhaltung
Zeitschrift fur Arznei- und Gewurzpflanzen | Year: 2014

The state of the art equipment for harvesting valerian roots is not efficient enough. Therefore, the aim of this study is to create a harvester for careful lifting and successful cleaning of the roots. For that purpose, a new cleaning system "rotation" is developed and compared to two other existing systems in a field trial with regard to the parameters "root mass loss", "ingredients loss" and "cleaning intensity". No differences regarding the ingredients are found, but there are significant differences with respect to the root mass loss and the cleaning efficiency. However, taking all results into consideration, all three systems are suited for agricultural practice. According to the particularly advantageous features of these three cleaning systems and based on the trial outcomes a new efficient harvester is elaborated. Source


Neumaier G.,Institute For Landtechnik Und Tierhaltung | Frohlich G.,Institute For Landtechnik Und Tierhaltung | Bernhardt H.,TU Munich
Landtechnik | Year: 2014

The state of the art equipment for harvesting valerian roots is not efficient enough. Therefore, the aim of this study is to create a method for careful lifting and successful cleaning of the roots. For that purpose, a new cleaning system "rotation" is developed and compared with two other existing systems in a field trial with regard to the parameters "root mass loss", "ingredients loss" and "cleaning intensity". No differences regarding the ingredients are found, but there are significant differences with respect to the root mass loss and the cleaning efficiency. However, taking all results into consideration, all three systems are suited for agricultural practice. Source


Adikaram K.K.L.B.,TU Munich | Adikaram K.K.L.B.,Institute For Landtechnik Und Tierhaltung | Adikaram K.K.L.B.,Ruhuna University | Hussein M.A.,TU Munich | And 2 more authors.
Scientific World Journal | Year: 2014

We introduce a new nonparametric outlier detection method for linear series, which requires no missing or removed data imputation. For an arithmetic progression (a series without outliers) with n elements, the ratio (R) of the sum of the minimum and the maximum elements and the sum of all elements is always 2 / n: (0,1 ]. R ≠ 2 / n always implies the existence of outliers. Usually, R < 2 / n implies that the minimum is an outlier, and R > 2 / n implies that the maximum is an outlier. Based upon this, we derived a new method for identifying significant and nonsignificant outliers, separately. Two different techniques were used to manage missing data and removed outliers: (1) recalculate the terms after (or before) the removed or missing element while maintaining the initial angle in relation to a certain point or (2) transform data into a constant value, which is not affected by missing or removed elements. With a reference element, which was not an outlier, the method detected all outliers from data sets with 6 to 1000 elements containing 50% outliers which deviated by a factor of ± 1.0 e - 2 to ± 1.0 e + 2 from the correct value. © 2014 K. K. L. B. Adikaram et al. Source


Jais C.,Institute For Landtechnik Und Tierhaltung | Oppermann P.,Institute For Landtechnik Und Tierhaltung | Schwanfelder J.,Versuchs und Fachzentrum der LfL in Schwarzenau tatig
Landtechnik | Year: 2013

During a two year lasting study the floor in the lying area in a pen for 30-40 pregnant sows was fitted with rubber mats, while in an identically designed control pen, the lying area was equipped with slatted (with holes) concrete floor. The activity area of both pens consisted of slatted concrete floor. To evaluate the effect of rubber mats on the sows, claws and joints were judged regularly. Sows entered in the study with their second pregnancy and stayed, depending on their lifetime and their time of entering, up to five pregnancies in the study. Lateral abrasions of claw's horn were significantly reduced by rubber mats in the sow's lying area. The other criteria, alterations of the ball, injuries of the skin above of the claws, fractures of the claw's horn, comparison of the length of the inner and outer claw, length of dewclaw, alterations of the joints and motion were not influenced by the type of floor in the lying area. Source

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