Birth and mortality rate of European Bison (Bison bonasus bonasus L1758) population

Urošević, Milivoje and Dameski, Pance and Mandić, Radomir and Stanišić, Goran (2022) Birth and mortality rate of European Bison (Bison bonasus bonasus L1758) population. Veterinarska stanica, 53 (4). pp. 451-459.

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Abstract

A survey of the birth and mortality of
European Bison (Bison bonasus bonasus L1758)
conducted from 2000 to 2018 in two nurseries
showed that the females in the first study
group had the first mating at an average age of
42.54 months, with an interval from 23 to 84.5
months. The average age of the first mated
females in the second study group was 31.67
months, with an interval from 39.5 to 66.93
months. The average time between calving
for the first group females was 9.95 months,
with an interval from 0.5 to 28.5 months. The
calving interval for the second group was 8.53
months with variation from 1 to 32 months.
The first group had a maximum of seven
calves, while the maximum in the second
group was 13.A total of 33 calves were born
in the first group during the study period, 16
males (48.48%) and 17 females (51.51%), while
40 calves were born in the second group,16
males (40.0%) and 24 females (60.0%).The
mortality rate in the first group ranged
between 14.3 and 30.0%, with a mortality rate
of males of 20 to 60% and for females of 16.66
to 50%. In the second group, the mortality rate
was from 9.09 to 23.08%, for males 33.33% and
from 11.11 to 25.0% for females. The results
indicate that future studies should address
greater attention to birth and mortality rates.

Key words: European Bison; birth rate;
mortality rate

Item Type: Article
Subjects: Scientific Fields (Frascati) > Agricultural Sciences > Veterinary science
Divisions: Faculty of Veterinary Medicine
Depositing User: Mrs Natasha Petrovska
Date Deposited: 17 Sep 2026 09:39
Last Modified: 17 Sep 2026 09:39
URI: https://eprints.uklo.edu.mk/id/eprint/11787

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