Displaying all 2 publications

Abstract:
Sort:
  1. Fulltext Keratometry, biometry, and intraocular lens power calculation in Bornean sun bears (Helarctos malayanus euryspilus)
    Wai YZ, Yeoh BN, Chiang WS, Sharum MHB, Kadir NA, Jalil NHBM, et al.
    Open Vet J, 2025 Jun;15(6):2889-2894.
    PMID: 40989619 DOI: 10.5455/OVJ.2025.v15.i6.58
    BACKGROUND: Cataracts are a common ocular condition that affects captive sun bears, yet there is a lack of detailed case reports and ocular studies of this species.

    AIM: The examinations aim to calculate the intraocular lens (IOL) power required to achieve emmetropia following cataract surgery.

    METHODS: Five Bornean sun bears diagnosed with cataracts at the Bornean Sun Bear Conservation Centre in Malaysia underwent ocular examination under general anesthesia. Keratometry and biometry data, including anterior chamber depth, crystalline lens thickness, and axial globe length, were collected using an automated keratometer and B-mode ultrasound. The Retzlaff, Binkhorst, Colenbrander, and Fyodorov formulas were used to estimate the required IOL power.

    RESULTS: The mean corneal keratometric power was 56.94 D, the mean axial globe length was 12.93 mm, and the mean calculated postoperative anterior chamber depth was 4.77 mm. The mean calculated IOL power was +92.96 D. Conclusion: Aphakic cataract surgery were decided following these findings showing no available commercial IOL implants for this species. These findings provide valuable baseline data for optimizing cataract surgery in Bornean sun bears.

  2. Preliminary findings of age and male sexual characteristics andand potential effect to semen characteristics and cryopreservation of the critically endangered Bornean orangutan in Malaysia
    Zainuddin ZZ, Tarmizi R, Chee YK, Sarkawi NN, Ahmad H, Salleh A, et al.
    Primates, 2022 Jul;63(4):377-386.
    PMID: 35460385 DOI: 10.1007/s10329-022-00989-z
    Bornean orangutan is a critically endangered non-human primate; however, the threat of extinction is not merely from poaching and habitat loss. Orangutan survival is also threatened by the genetic loss and genetic bottleneck due to the low effective population, prompting the dire need for an immediate genetic preservation program through systematic biobanking and assisted reproductive technology (ART). This study aims to provide integral data to the semen characteristics, extension, and cryopreservation of the Bornean orangutan and the potential relationship to male traits. Five captive orangutans from Sepilok Orangutan Rehabilitation Centre (SORC) with a mean body weight of 52.81 ± 7.00 kg were used for this study. Semen collection was performed using electroejaculation (EE) under complete general anesthesia. Semen was subjected to macroscopic and microscopic evaluation while testicular measurement was obtained using digital calipers. The semen characteristics of the orangutans are volume (778 ± 250.21 µl), pH (7.80 ± 0.25), concentration (32.38 ± 17.40 × 106 sperm/ml), total motility (61.00 ± 12.88%), adjusted motility index (48.76 ± 11.32%), live spermatozoa (77.75 ± 6.94%) and normal spermatozoa (11.48 ± 11.34%). Analysis of variance statistical analysis test was used to compare the significant difference between means, at (p 
Related Terms
    Try searching for something
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links