Camels represent part of the Arab heritage. The interest in developing assisted reproductive technologies and cryobanking for the conservation of animal genetic resources has recently increased. However, semen collections in camelids present many problems as sitting position during copulation, slow ejaculation and difficult animal handling. In these cases epididymal sperm from slaughtered or re...

The aim of this study was investigation of various levels of vitamin E in Tris extender on semen characteristics of Ghezel rams in pre and post freezing conditions. Semen was collected from six healthy and mature rams with average 55±5 Kg body weight by electro ejaculator. High quality samples were mixed and diluted in Tris extender after apply different concentration of vitamin E. Treatments w...

The onset of egg production (mean 18.3 days after the onset of photostimulation) and the rate of egg production (flock averaged 4.9 eggs per bird per week for the first 8 weeks of egg production) were not affected by 5 days of twice daily oviduct eversion ('venting') in the pre-laying period when compared to unvented controls. After the onset of photostimulation, pre-laying hens were inseminate...

The present work was designed to study the effect of different concentrations of bovine serum albumin (BSA) in extender on post-thaw quality of buffalo spermatozoa. Semen was collected from three buffalo bulls with artificial vagina (42°C) for three weeks (replicates). Qualifying semen ejaculate from each bull was split into five aliquots and diluted in tris-citric egg yolk extender containing ...

AIMS In this study we report our results with storage of cryopreserved semen intended for preservation and subsequent infertility treatment in men with testicular cancer during the last 18 years. METHODS Cryopreserved semen of 523 men with testicular cancer was collected between October 1995 and the end of December 2012. Semen of 34 men (6.5%) was used for fertilization of their partners. The...

It is now possible to store turkey semen for 4 to 24 h without appreciable loss in fertility and hatchability. Optimum conditions for 24 or 48 h storage have not been fully determined. Development of new storage media, allowing the insemination of very low numbers of spermatozoa, may provide interesting possibilities regarding the use of superior sires. This study was conducted to evaluate effe...

The successful application of assisted reproductive techniques (ARTs) in ovine as other mammal species relies on many factors among which the quality semen used. After collection, samples are generally processed for storage (liquid or cryoconservation) before being used insemination vitro embryo production. During liquid process, sperm cells exposed to artificial conditions lead oxidative stres...

In order to ascertain the microbiological quality of stored semen specimens processed for artificial insemination by a donor (AID), we developed a PCR assay targeting the chlamydial plasmid to detect Chlamydia trachomatis in semen. The lower limit of detection of this assay corresponded to 2.5 to 5 elementary bodies per microl of semen. A total of 669 cryopreserved ejaculates from 97 asymptomat...