Introduction

Abstract

Ethology can be defined as the science of animal behaviour and its causes. Behaviour is an integral part of the animal’s adaptation mechanisms and is inseparable from its physiological or morphological adaptations. Since behaviour constitutes the visible interaction of an animal with its physical and social surroundings, ethological methods constitute an important element in studies of how animals are affected by different environments. Thus, ethology is an essential part of the judgement of animal welfare in different animal husbandry systems, (17, 25, 27, 59, 91, 92).