2. Population management & Animal welfare

2. Population management & Animal welfare

Funders

Ongoing activities

□ Maintained frequency and diversity of enrichments in each section

Specific activities

□ Mona monkey: Completed the integration of Edogue (adult female) mona monkey in Mantum group (Image 4-5)

□ Mandrills: Completed the re-integration of Nimbus (adult male) into the mandrill Group (Images 6-7)

□ Western Lowland Gorilla: Started physiotherapy with female gorilla Twiggs focusing on her disabled right arm (Images 8-9)

□ Vet cares (May 2021): o Boosting primate immune systems during Covid-19: providing on daily basis vitamins, plants infusion, extra protein and other nutritional enrichment to all primates o Primates: 165 individuals treated; 4 anaesthesia performed; 10 individuals sampled (2 blood sample for haematology analysis, 2 blood sample for biochemistry analysis, 10 faecal samples for coprology analysis, 2 Tracheal swab for microbiology analysis); 0 contraception; 0 identification with a microchip; 0 laceration repairs; 81 drug therapies: 86% dietary supplements, 5% expectorant, 3% antibiotics, 3% anti-inflammatories, 2% others, 1% topical disinfectant; 1 death: Yanto, (adult male drill, cancerous growth into vital organs) (Image 10-13) o African grey parrots: 22 general health checks; 0 health checks before release; 0 transferrals to the soft-release aviary, 7 transferrals to the rehabilitation aviary; 7 individuals received extra care and nutritional supplement to boost feather regrowth; 0 deaths

Image 4. Female mona monkey Edogue is gently grooming the back of the dominant male Mantum during their first encounter. Acceptance from Mantum of this newcomer eased Edogues integration into the group.

Image 6. Male mandrill Nimbus (right) is looking for the best browse next to female Malaïka (left). He was released back into the enclosure with his 8 fellow mates after 1 year isolated to repair a broken back leg. The reintegration went smoothly and he quickly gained the upper hand over Ndolo the dominant male who was beginning to lose in rank due to his old age. Image 5. Edogue (top left) enjoying foraging during enrichment time with her fellow mates, Mezam (top right), JK (down right) and of course Mantum (down left). Everybody has accepted her very well!

Image 7. Eventually, after a few fights throughout the year that Nimbus was locked up, Malengo (adult male on the right) submitted to his rival Nimbus (on the left), the tension eased and the group found a new balance where everyone can enjoy the outdoor enclosure.

Image 8. Under the supervision of the head of the gorilla section, Jonathan KANG, veterinarian volunteer Ayrin PIEPHOH started physiotherapy sessions with female gorilla Twiggs, to increase the use of her disabled arm. Twiggs’ right limb has been crippled when she was caught by poachers as a baby. Since, she held it near her body instead of walking with it, resulting in muscle atrophy.

Image 10. Dr John KIYANG checked the constants and the general condition of male chimpanzee Carlos during his health check. Image 9. Using positive reinforcement with nuts, and a clicker to create a Pavlovian reflex, Ayrin encourages Twiggs to move her right shoulder and arm by herself. For the physiotherapy to be progressive, a first step is to place Twiggs’ right hand on her left arm while she is using it to eat, inducing gentle stretching of her crippled arm’s muscles.

Image 11. Veterinarian assistant, Tana OSSOMBA, proceeded to do 3 tuberculosis tests during Carlos health check.