Collection, analysis and cryopreservation of semen from Malayan gaur (Bos gaurus hubbacki): A preliminary study.

The Malayan gaur (Bos gaurus hubbacki) or Seladang is classified as vulnerable by the International Union for Conservation of Nature and Natural Resources (IUCN). The Malayan gaur is mainly distributed in the tropical woodlands of Peninsular Malaysia and Southern Thailand. The aim of this study was to collect, analyze and cryopreserve the semen of wild Malayan gaur.

A preliminary study of reactive oxygen species activity within motile Boer buck sperm using confocal laser scanning microscope (CLSM).

Objective: There is an association between reactive oxygen species (ROS) and DNA damage to sperm. Researchers believe that ROS is always present at the sperm's head. The variation of ROS concentration within the area has an impact on the integrity of the DNA.

Transfer of fresh and cryopreserved IVP bovine embryos: normal calving, birth weight and gestation lengths.

In vitro and in vivo developmental competence of fresh and cryopreserved in vitro produced (IVP) bovine embryos was evaluated up to birth. Three experiments were done. The objective in the first experiment was to develop an optimal vitrification procedure for IVP bovine embryos by determining effects of exposure time (2, 5, 10, 20 min) and temperature (4, 22, 27 degrees C) in cryoprotective agents prior to vitrification on their post-thaw viability.