Maternal protective behaviour of German Angus
and Simmental beef cattle after parturition
and its relation to production traits
A total of 390 German Angus (Aberdeen Angus German dual-purpose breeds) and Simmental cows
were tested in seven consecutive years (2000–2006) for maternal protective behaviour which was assessed
by categorising behavioural response of the dams during earmarking their calves. The test was conducted
within 24 h after parturition by the same person. Analysis of variance of maternal protective behaviour
scores (MBS) was performed using a model including breed, lactation-number and calving month as fixed
effects as well as the interaction between breed and lactation-number. The cow was included as a random
effect. Breed, lactation-number and the interaction breed lactation-number highly affected MBS.
German Angus was scored higher than Simmental as well as cows with higher lactation-numbers in
comparison to younger cows. Heritability was estimated under consideration of the whole relationship
matrix and differed between 0.14 (S.E. 0.08) for German Angus and 0.42 (S.E. 0.05) for Simmental.
Repeatabilities for MBS were 0.24 (S.E. 0.04) for German Angus and 0.42 (S.E. 0.05) for Simmental,
respectively. Weaning weights and average daily weight gains of the calves were not correlated with
maternal protective behaviour scores.