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One of the largest animal welfare problems in modern pig production is tail biting. This abnormal behaviour compromises the well-being of the animals, can seriously impair animal health and can cause considerable economic losses. Tail biting has a multifactorial origin and occurs mainly in fattening pigs. High stocking densities, poor environment and bad(More)
BACKGROUND While several novel therapeutic approaches for HD are in development, resources to conduct clinical trials are limited. Large animal models have been proposed to improve assessment of safety, tolerability and especially to increase translational reliability of efficacy signals obtained in preclinical studies. They may thus help to select(More)
The aim of this study was to identify, quantify, and describe pre-signs of aggression in pigs and the early stages of aggressive interactions. The experiment was carried out at a commercial farm on a group of 11 male pigs weighing on average 23 kg and kept in a pen of4 m x 2.5 m. In total 8 hours were videorecorded during the first 3 days after mixing. As a(More)
Weaning piglets at the age of three or four weeks is an integral part of certain production rhythms in modern pig farming. Sorting piglets by weight and mixing them into new groups is a common method in agricultural practice. The aim of this study was to clarify whether the formation of homogeneous weight groups after weaning affects weight development and(More)
It is known that pigs raised in enriched environments express less aggressive behaviour. For this reason, a new method of cognitive environmental enrichment was experimented at the University of Veterinary Medicine Hannover, Germany. In the first phase, 78 suckling piglets were trained to learn the link between a sound given by an electronic feeder and a(More)
Two postulated mechanisms for the failure of prosthetic implants secured with bone cement are: failure of the cement itself, and loosening at the bone/cement interface. Failure rate with cement can be reduced by increasing the strength of the cement, and loosening can be reduced by minimizing cement shrinkage during polymerization. This paper shows that(More)
The aim of this study was the evaluation of animal health recording data based on veterinary diagnostic data subject to documentation by law from the year 2009. Based on this, the occurence of diagnosed cattle diseases in the Middle Weser Area was assessed. Analysis was performed for each age category milk cows, heifers and calves. Data was provided by(More)
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