Title of the paper: Ethological and ethophysiological Research for Far
m Animal Welfare. Farm animals have to be kept, housed and handled acc
ording to their biological needs. This refers especially to their etho
logical and physiological requirements, which have to be identified an
d evaluated. Research for animal welfare has been considerably intensi
fied during the last 20 years. Some of the main areas have been and st
ill are: Identification and completion of the behavioural inventory of
farm animals. Development of integrated systems of animal welfare-rel
ated indicators. Investigation and evaluation of biological requiremen
ts, particularly ethological requirements, and possibilities of their
fulfilment in animal husbandry. Research on ethophysiological indicato
rs for stress in farm animals. On the background of recent results the
following developments can be observed: Adaptation, modification and
improvements within existing systems. Development of combined procedur
es including the employment of technical development and progress. Ret
urning to ''traditional'' systems of animal management and/or developm
ent of ''alternative'' procedures. Perspectives and future directions
for reasonable developments in animal husbandry, according to welfare
needs and based on ethological and ethophysiological findings, should
consider the following elements: Optimization within existing manageme
nt systems, including their adaptation to animal requirements. Employm
ent of modern technologies in welfare oriented housing systems, thus f
acilitating group housing of animals without giving up the advantages
of single keeping systems. Diversity in livestock breeds, production s
ystems and management procedures as a creative principle for future di
rections in animal husbandry. Intensive, efficient and interdisciplina
ry research is a most significant prerequisite for desirable developme
nts and positive perspectives for welfare-oriented management of farm
animals.