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Dissertation
Konzepte, Methoden und Methodologien in der Tierwohlforschung
(2022)
Das vorliegende Projekt widmete sich den Interdependenzen von Konzept, Methoden und Methodologien in der Erforschung des Wohlbefindens von Nutztieren. Ziele waren, die methodische Praxis zu beschreiben, deren Verbindung mit Konzeptionen tierlichen Wohlbefindens herzustellen und Bezüge zu methodologischen Grundannahmen aufzuzeigen.
Als erster Arbeitsschritt wurde eine literaturbasierte Übersicht über Verständnisweisen des Tierwohlkonzepts angefertigt. Es existieren in der Fachliteratur zahlreiche Ausgestaltungen ...
Dissertation
Inter- and intraindividual variation in energy supply of dairy cows and the potentials of animal individual energy balancing
(2022-04)
In recent decades, a massive increase in milk yield per cow per year has been observed, which could initially be considered positive due to economic advantages, but at the physiological level a corresponding increase in energy intake has not occurred. This situation of negative energy balance increasingly confronts cows with metabolic challenges, which, however, usually remain unnoticed due to a lack of animal-specific considerations, and thus increasing rates of disease and malting can also be observed. The objective ...
Aufsatz
Comparison of linear discriminant analysis, support vector machine and artificial neural network in classifying Nigerian local turkeys based on plumage colours using biometric traits
(2022-10-18)
The ability of linear discriminant analysis (LDA), support vector machine (SVM), and artificial neural network (ANN) models to differentiate biometric traits of Nigerian local turkeys was investigated in this study. The biometric traits (bodyweight, body length, breast girth, thigh length, shank length, keel length, wing length, and wingspan) in 200 (20-week-old) turkeys were measured. Seventy percent of the datasets were used to train the three models, with the remaining 30% being used to test their performance. All ...