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Now showing items 11-17 of 17
Aufsatz
Identification and development of measures suitable as potential breeding traits regarding dairy cows´ reactivity towards humans
(Elsevier B.V., 2016-09-19)
Behavioural indicators of the human-animal relationship (HAR) are predominantly used in animal welfare science. However, the reactivity of dairy cows – as part of the HAR - is also of interest in the context of dairy breeding, due to its estimated moderate heritability. The avoidance distance (AD) towards an unfamiliar experimenter in a standardized test is regarded an established behavioural indicator of the HAR, but for breeding purposes more feasible measures would be advantageous.
The aim of the present pilot ...
Aufsatz
Behavioural response of dairy cows with and without calf-contact to hair of own and alien calves presented in the milking parlour
(Elsevier B.V., 2016-05-06)
In systems where dairy cows are milked and additionally suckle their calves during the first months of lactation, problems with alveolar milk ejection during machine-milking occur. As olfaction is a key sense for kin recognition and acceptance at the udder, olfactory stimulation might alleviate this challenge. In this pilot study, we investigated whether cows behaviourally respond to calf hair presented in the parlour, and whether this is affected by suckling the own calf or not. Discrimination between hair of the ...
Aufsatz
Verhaltensprobleme in alternativen Legehennenhaltungen
(Knierim, Ute (u.a.) (Hrsg.), 2006)
Aufsatz
Untersuchungen zur Tiergerechtheit in ökologisch wirtschaftenden Betrieben mit Legehennenhaltung
(Bio Austria, 2004)
Von 2002 bis 2004 wurde im Rahmen des Bundesprogramms Ökologischer Landbau eine Status Quo Analyse zur ökologischen Geflügelhaltung mit dem Titel „Ökologische Geflügelproduktion - Struktur, Entwicklung, Probleme, politischer Handlungsbedarf“ durchgeführt. Gesamtziel des Vorhabens war, detaillierte und aktuelle Informationen aus den Bereichen Tiergerechtheit inklusive Haltungssysteme und –bedingungen, Tiergesundheit und Wirtschaftlichkeit anhand einer repräsentativen Stichprobe zu erhalten und politischen Handlungsbedarf ...
Aufsatz
Tiergerechtheit auf ökologischen Milchviehbetrieben
(Bio Austria, 2004)
Ziel des vorliegenden Forschungsvorhabens war, nähere Daten über die Tiergerechtheit in der Ökologischen Milchviehhaltung zu gewinnen. Die hier vorgestellten Ergebnisse sind Teil eines Forschungsvorhabens mit dem Titel „Ökologische Milch- und Rindfleischproduktion“, welches im Rahmen des Bundesprogramms Ökologischer Landbau durchgeführt wurde, gefördert durch die Bundesanstalt für Landwirtschaft und Ernährung (BLE), Bonn (HÖRNING et al. 2004). Dabei wurde ein zweistufiges Verfahren gewählt.
Aufsatz
Spatio-temporal patterns of herbage availability and livestock movements: A cross-border analysis in the Chinese-Mongolian Altay
(Springer, 2016-07-04)
Due to increasing population and the recent implementation of policies to intensify the use of land and water resources, the transhumant pastoral systems in the Chinese-Mongolian Altay-Dzungarian region are rapidly changing, leading to modifications of herd size, herd composition and spatial distribution of livestock grazing. This may have major consequences for the supply and quality of rangeland biomass. Despite similar topographic settings, the socio-political framework for Chinese and Mongolian pastoralists differs ...
Aufsatz
Enlarging a training set for genomic selction by imputation of un-genotyped animals in populations of varying genetic architecture
(BioMed Central, 2013)
Background: The most common application of imputation is to infer genotypes of a high-density panel of markers on animals that are genotyped for a low-density panel. However, the increase in accuracy of genomic predictions resulting from an increase in the number of markers tends to reach a plateau beyond a certain density. Another application of imputation is to increase the size of the training set with un-genotyped animals. This strategy can be particularly successful when a set of closely related individuals are ...