Mammalian sperm mitochondrial sheath harbors a number of enzymes that are involved in release of energy via oxidative phosphorilation of ATP. The present study was designed to detect the effect of differential sperm mitochondrial activity on the fertility potential and the association of sperm mitochondrial activity index (SMAI) with the sperm motility parameters for cryopreserved semen samples...

The responses of cane toad (Bufo marinus) gametes, used as a model for the development of assisted reproduction techniques for rare and endangered amphibians, to short-term storage at temperatures > 0 degrees C were studied. Whole excised testes were stored at 0 degrees or 4 degrees C for 15 days, and sperm motility was measured at excision and after storage for 2, 5, 7, 10, 12 and 15 days. Spe...

Cryopreservation trials on rainbow trout (Salmo gairdneri) sperm were carried out using two basic extenders: Mounib's medium (M) and Ménézo's medium (Me) to which were added bovine serum albumin (BSA) and tellurite egg yolk (Institut Pasteur). After 10 p. 100 of DMSO was added to these different deep-freeze diluents (DD), they were mixed with the sperm and then deep-frozen into 100 microliter p...

Methods of semen collection and artificial insemination (AI) in poultry, requirement for diluents, methods of liquid and frozen storage of avian semen and evaluation of spermatozoa after storage for fertilizing ability are reviewed. Frozen storage of semen from non-domestic birds is also briefly discussed.

The transmission of a deleted in azoospermia (DAZ) deletion from a severely oligozoospermic patient to his son following intracytoplasmic sperm injection (ICSI) treatment is reported. The case report highlights the fertilizing capacity of spermatozoa carrying Y chromosome deletions in patients treated with ICSI and stresses the importance of genetic counselling in severe male infertility.

Title Early development of the self-fertilizing mangrove killifish Rivulus marmoratus reared in the laboratory Author(s) Camacho Grageda, Maria Vivian; Sakakura, Yoshitaka; Hagiwara, Atsushi Citation Ichthyological Research, 51(4), pp.309-315; 2004 Issue Date 2004-12 URL http://hdl.handle.net/10069/35710 Right © The Ichthyological Society of Japan; The final publication is available at link.spr...

This study documents unexpectedly low levels of intra and interpopulation genetic diversity in Kryptolebias ocellatus, an androdioecious and predominantly self-fertilizing killifish from south-eastern Brazil. This finding generally is inconsistent with the established opinion that the K. ocellatus and K. marmoratus clade originated in this geographic region and later dispersed northward into th...

Artificial insemination of dairy cattle is a common practice in the developing world that can improve farmer incomes and food security. Maintaining the fertilizing potential of frozen semen as it is manipulated, transported and stored is crucial to the success of this process. Here we describe simple technological improvements to protect semen from inadvertent thermal fluctuations that occur wh...