Individual Behavior Of Female Sumatran Orangutan (Pongo abelii L.) With Enclosure Management System In Siantar Zoo

Abstract

Sumatran orangutans (Pongoabelii L.) is an endangered species due to habitat destruction. Conservation strategies need to be done in preventing extinction of orangutans, such as ex-situ conservation in Siantar zoo. This study aims to determine the behavior of individual male orangutan at Siantar Zoo with a management system. The observatuons was conducted for 14  days  in  August  with  the  Focal  Animal  Sampling  method,  data  recorded  using  the Instantaneous  method  and  descriptive data using  the Open Ended  interview technique.  The results showed the overall frequency of individual male orangutan behavior were locomotion (33,43%), resting (27,36%), eating (25,24%), playing (9%), agonistic (3,64%), self care (0,83%) and pooping (0,5%). The behavior of individual male orangutan is influenced by the number of visitors, namely the locomotion behavior of the crowded visitor category (34,37%), medium (30,31%)  and  quiet  (33,18%).  The  resting  behavior  of  crowded  visitor  catego ry  (25,02%), medium (28,19%) and quiet (27,44%). The eating behavior for crowded, medium and quiet categories was 25,96% ; 25,47% and 26,30%. The playing behavior in crowded, medium and quiet categories is 7,96% ; 7,71% ; 9,75%. Agonistic behavior in crowded categories (5,44%), medium  (7,11%)  and  quiet  (  1,96%).  Self-care  behavior  for  crowded,medium  and  quiet categories was 0,64% ; 0,83% ; 0,88%. The pooping behavior in the crowded category is 0,59%, in the medium category is 0,38% and in the quiet category is 0,49%. Themanagement system for male  orangutan  at  Siantar  Zoo  already  has  a  fairly  good  and  regular  system.  The  cage management has met the minimum requirements and the male orangutan has a optimal body weight and has never been infected with a serious disease.