نتایج جستجو برای: frozen semen

تعداد نتایج: 42036  

Journal: :Animal reproduction science 2013
P Walter Bravo V Alarcon L Baca Y Cuba C Ordoñez J Salinas F Tito

Semen preservation and artificial insemination in South American camelids are reviewed giving emphasis to work done in Peru and by the authors. Reports on semen evaluation and the preservation process indicate that semen of alpacas and llamas can be manipulated by making it liquid first. Collagenase appears to be the best enzyme to eliminate viscosity. Tris buffer solution maintains a higher mo...

2007
S. M. H. ANDRABI L. A. KHAN

The objective of this study was to evaluate the effect of reducing sperm numbers per insemination dose on fertility of cryopreserved buffalo bull semen. For this purpose, semen was collected at weekly intervals from a Nili-Ravi buffalo bull (Bubalus bubalis) using an artificial vagina in two batches. The ejaculates were split-sampled and diluted at 37°C with tris-citric acid extender having 15x...

2015
G. Turk M. Yuksel M. Sonmez S. Gur S. Ozer Kaya E. Demirci

It has been claimed that artificial insemination (AI) of cows with frozen-thawed semen treated with commercially produced kits, HeiferplusTM (HP, in favour of female gender) and BullplusTM (BP, in favour of male gender), increases the birth chance of calves with desired sex ratio by at least 20–25% and pregnancy rates by at least 5–20%. Hence, this study was conducted to investigate the efficac...

2016
Fabio Mosca Manuela Madeddu Ahmad Abdel Sayed Luisa Zaniboni Nicolaia Iaffaldano Silvia Cerolini

This data article contains supporting information regarding the research article entitled "Combined effect of permeant and non-permeant cryoprotectants on the quality of frozen/thawed chicken sperm"(Mosca et. al., 2016) [1]. The combined effect of the permeant cryoprotectants agent dimethylacetamide and the non-permeant cryoprotectants agent trehalose on the quality of frozen-thawed chicken sem...

Journal: :Australian Journal of Biological Sciences 1979

Journal: :Australian Journal of Biological Sciences 1976

Journal: :Journal of Dairy Science 1955

Canine seminal plasma contains antioxidant enzymes to protect sperm against internally generated ROS. These enzymes are removed from seminal plasma during the process of cryopreservation. The freezing/thawing process can cause some morphological and functional changes via ice crystallization and osmolality imbalance. The present study was conducted to evaluate the effects of curcumin supplement...

Journal: :Reproduction in domestic animals = Zuchthygiene 2003
E Sellés J Gadea R Romar C Matás S Ruiz

A porcine in vitro fertilization (IVF) system and seminal quality parameters of frozen-thawed boar semen were used to assess the effectiveness of two different thawing rates of frozen boar semen, and to address the question of whether differences between fertility of ejaculates could be predicted in a limited field trial. In the first experiment, two thawing procedures were analysed (37 degrees...

ژورنال: Anatomical Sciences Journal 2004
Bayat, Mohammad, Hoseini, Ahmad, Khosh Vaghti, Amir, Movahedin, Mansoureh, Rezaei, Fateme Sadat, Sadeghi, Yoosef ,

Purpose: Semen freezing is an important technique in human infertility treatment in many different patients but it damages sperms. Low-power lasers are physical agents that have biostimulatory effects. In this study, low-power helium-neon laser's (16J/cm2, one time irradiation) effect on motility and ultrastructure of fresh and frozen-thawed human sperm were studied. Materials and Methods: Thi...

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