نتایج جستجو برای: frozen semen

تعداد نتایج: 42036  

2010
Richard Fayrer-Hosken Christine Abreu CHRISTINE ABREU Gary Heusner Margarethe Hoenig Edris Abreu

The present study was to improve the success for the cryopreservation of stallion spermatozoa, especially as the costs of using low post-thaw motility or sub-optimal fertility deters owners and breeders from using frozen semen. The aim was to develop a freezing extender/process that supports cell survivability throughout the freezing. Eleven stallions were collected and frozen in INRA 96 with t...

Journal: :Reproduction in domestic animals = Zuchthygiene 2005
M P Viudes-de-Castro E Mocé J S Vicente F Marco-Jiménez R Lavara

The present work studied different spermatozoa parameters and the ability of frozen rabbit spermatozoa to fertilize, in vitro, in vivo-matured oocytes, as a test to predict their in vivo fertility and prolificacy. Semen from rabbit bucks was frozen using two freezing protocols [in a freezer at -30 degrees C or in liquid nitrogen vapour (LNV)]. For the in vivo trial, females were inseminated wit...

A.A. Ibrahim, A.B. Amin B. Babandi J. Aliyu U. Ibrahim

This study was undertaken to compare the efficiency of fresh and frozen-thawed buck semen on in vitro fertilization (IVF) of goat oocytes. Cumulus oocytes complexes (COCs) were collected by aspiration of 2-6 mm diameter follicles, which were obtained from slaughterhouse. Upon grading, only normal quality COCs were maturated in TCM-199 for 48 hours. The percentage of COCs reached to the M-II sta...

Journal: :Journal of reproduction and fertility 1975
S W Seager C C Plats W S Fletcher

There is much interest in the United States and other countries by dog breeders, pet owners, veterinarians and research workers who realize the great potential for the use of frozen semen. This potential is comparable to that already achieved in the cattle breeding industry. Since the first successful pregnancy utilizing frozen dog semen (Seager, 1969), work on aspects of the freezing of dog se...

2011
R. K. Kasimanickam

We hypothesize that insemination with fresh extended semen will improve the AI pregnancy rate due to its prolonged longevity in female reproductive tract compared to frozen thawed semen. The objective of this trial was to determine the effect of fresh and frozen semen on fixed-time AI pregnancy rate in beef cows synchronized with progesterone based CO-Synch protocols and inseminated at differen...

A. Hoque A.M.M.T. Reza L.Y. Asad M.A.M.Y. Khandoker S. Saha,

This study was undertaken to compare the efficiency of fresh and frozen-thawed buck semen on in vitro fertilization (IVF) of goat oocytes. Cumulus oocytes complexes (COCs) were collected by aspiration of 2-6 mm diameter follicles, which were obtained from slaughterhouse. Upon grading, only normal quality COCs were maturated in TCM-199 for 48 hours. The percentage of COCs reached to the M-II sta...

Journal: :Animal reproduction science 2000
A M Donoghuea G J Wishart

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.

Journal: :veterinary research forum 2012
kamran dorostkar sayed mortaza alavi-shoushtari aram mokarizadeh

the aim of the present study was to investigate the effect of in vitro supplementation of selenium on fresh and frozen spermatozoa quality of buffalo (bubalus bubalis) bulls. five healthy buffalo bulls (5 ejaculates from each bull) were used. each ejaculate was diluted at 37 ˚c with tris-based extender containing 0 (control), 0.5, 1, 2, 4 and 8 μg ml-1 sodium selenite and the sperm motility and...

The aim of the present study was to investigate the effect of in vitro supplementation of selenium on fresh and frozen spermatozoa quality of buffalo (Bubalus bubalis) bulls. Five healthy buffalo bulls (5 ejaculates from each bull) were used. Each ejaculate was diluted at 37 ˚C with tris-based extender containing 0 (control), 0.5, 1, 2, 4 and 8 μg mL-1 sodium selenite and the sperm motility and...

2015
Chandrahas Sannat Ajit Nair S. B. Sahu S. A. Sahasrabudhe Ashish Kumar Amit Kumar Gupta R. K. Shende

AIM The present study was conducted to investigate the effect of species, breed and age on bacterial load in fresh and frozen semen of Cattle and Buffalo bull. MATERIALS AND METHODS Present study covered 56 cow and 10 buffalo bulls stationed at Central Semen Station Anjora, Durg (Chhattisgarh). Impact of breeds on bacterial load in semen was assessed using six breeds of cattle viz. Sahiwal, G...

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