Ejaculate characteristics of captive Malayan tapirs (Tapirus indicus)

Wanlaya Tipkantha, Budhan Pukazhenthi, Boripat Siriaroonrat, Ampika Thongphakdee, Umaporn Maikaew, Warisara Thomas, Daraka Tongthainan, Jessada Thaeonoen, Sumate Kamolnorranath, Mitchell Bush, Sitthawee Thongtipsiridech

Research output: Contribution to journalArticle

Abstract

The aims of this study were to optimize semen collection by electroejaculation and characterize ejaculate characteristics in Malayan tapir (Tapirus indicus). Eight adult males (4-20 years of age) were anesthetized using a combination of medetomidine HCl (0.012-0.018 mg/kg), butorphanol tartrate (0.012-0.018 mg/kg),and ketamine HCl (5-7 mg/kg) administered intramuscularly via a dart and subjected to electroejaculation. Ejaculates (milky-white to yellowish color) were successfully collected from all males. Averages (Mean±SD) of the seminal traits (volume, pH, osmolality, sperm concentration, total sperm motility, and viability) were 10.3±9.4 ml, 7.4±3.4, 278.6±13.3 mOsm, 206.2±185.4×106 spermatozoa/ml, 24±15.4%, and 35.1±6.5%, respectively. Morphological analysis showed low percentage of normal spermatozoa 6.7±2.6 % with 39.2±8.5% intact acrosomes. This is the first study to evaluate semen characteristics and sperm morphology in the Malayan tapirs. Results provide fundamental information essential for development of assisted reproductive technologies in this species.

Original languageEnglish (US)
Pages (from-to)499-508
Number of pages10
JournalThai Journal of Veterinary Medicine
Volume41
Issue number4
StatePublished - Dec 2011
Externally publishedYes

Fingerprint

Tapirus
Spermatozoa
spermatozoa
semen
Semen
butorphanol
assisted reproductive technologies
medetomidine
sperm concentration
Medetomidine
ketamine
Butorphanol
acrosome
osmolality
sperm motility
Acrosome
Assisted Reproductive Techniques
Sperm Motility
Ketamine
viability

Keywords

  • Malayan tapir
  • Semen collection
  • Seminal traits

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Tipkantha, W., Pukazhenthi, B., Siriaroonrat, B., Thongphakdee, A., Maikaew, U., Thomas, W., ... Thongtipsiridech, S. (2011). Ejaculate characteristics of captive Malayan tapirs (Tapirus indicus). Thai Journal of Veterinary Medicine, 41(4), 499-508.

Ejaculate characteristics of captive Malayan tapirs (Tapirus indicus). / Tipkantha, Wanlaya; Pukazhenthi, Budhan; Siriaroonrat, Boripat; Thongphakdee, Ampika; Maikaew, Umaporn; Thomas, Warisara; Tongthainan, Daraka; Thaeonoen, Jessada; Kamolnorranath, Sumate; Bush, Mitchell; Thongtipsiridech, Sitthawee.

In: Thai Journal of Veterinary Medicine, Vol. 41, No. 4, 12.2011, p. 499-508.

Research output: Contribution to journalArticle

Tipkantha, W, Pukazhenthi, B, Siriaroonrat, B, Thongphakdee, A, Maikaew, U, Thomas, W, Tongthainan, D, Thaeonoen, J, Kamolnorranath, S, Bush, M & Thongtipsiridech, S 2011, 'Ejaculate characteristics of captive Malayan tapirs (Tapirus indicus)', Thai Journal of Veterinary Medicine, vol. 41, no. 4, pp. 499-508.
Tipkantha W, Pukazhenthi B, Siriaroonrat B, Thongphakdee A, Maikaew U, Thomas W et al. Ejaculate characteristics of captive Malayan tapirs (Tapirus indicus). Thai Journal of Veterinary Medicine. 2011 Dec;41(4):499-508.
Tipkantha, Wanlaya ; Pukazhenthi, Budhan ; Siriaroonrat, Boripat ; Thongphakdee, Ampika ; Maikaew, Umaporn ; Thomas, Warisara ; Tongthainan, Daraka ; Thaeonoen, Jessada ; Kamolnorranath, Sumate ; Bush, Mitchell ; Thongtipsiridech, Sitthawee. / Ejaculate characteristics of captive Malayan tapirs (Tapirus indicus). In: Thai Journal of Veterinary Medicine. 2011 ; Vol. 41, No. 4. pp. 499-508.
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