The study was designed to assess the effects and optimal range of osmotic pressure of citrate egg yolk extender (CEYE) for cryopreservation of buffalo bull semen. Semen samples of four Nili-Ravi buffalo bulls, kept for artificial insemination (AI) purposes, were collected at weekly interval for five weeks. Five solutions of tri-sodium citrate dihydrate and D (-) fructose of varying osmotic pres...

This study was designed to determine effect of various concentrations of Lcysteine on frozen-thaw semen quality of Nili Ravi buffalo. Single ejaculate of four buffalo bulls (Nili-Ravi) was collected at weekly intervals for 5 weeks. Ejaculates of acceptable motility (≥70%) were pooled and semen was diluted by tris citric acid extender (TCAE; 300 mosm/kg osmotic pressure and ~7.0 pH) having 4 lev...

The objective of this study was to determine the effects of thawing groups of 2, 5, 10, 15, or 20 .5-ml French straws on post-thaw spermatozoal viability. Thermostatically controlled and nonthermostatically controlled thawing baths were compared. Using a split-plot design, semen from 10 bulls was extended in egg yolk citrate, frozen, and then thawed (in the respective groups) at 36 degrees C in...

The subject of present work was to predict internal temperature gradients developed during freezing of bovine sperm diluted in extender, packaged in 0.5 ml French plastic straws and suspended in static liquid nitrogen vapor at -100 degree C. For this purpose, a mathematical heat transfer model previously developed to predict freezing times (phase change was considered) of semen/extender package...

The production traits of Red Chittagong Cattle (RCC) were studied using two diets: A [Urea-molasses-rice straw (UMRS), Green Grass and Concentrate] and B [Rice straw, Green Grass and Concentrate]. In cows fed diets A and B, birth weights of calves were 15.2 and 14.1 kg (P<0.05), daily milk yield 2.0 and 2.0 kg (P>0.05), lactation length 254.8 and 247.1 days (P>0.05), age at first oestrus 28.4 a...

A 6-year-old lactating Holstein cow with a history of repeat breeding syndrome (failed to conceive afterthree artificial inseminations (AI) with fertile semen) was referred to the Veterinary Teaching Hospital of theSchool of Veterinary Medicine, Shiraz University. According to the history, neither abnormal clinical signs,nor uterine discharge had been observed subsequent to AI. The cow had show...

The aim of this study was to investigate the effects of catalase and pre-freezing equilibration during ram sperm cryopreservation on motility and membrane and acrosomal integrity of frozen-thawed semen, as well as conception rate following laparoscopic timedinsemination. Semen was collected from four mature Dorper rams, pooled and diluted in Tris egg-yolk extender basic solution (CON), or this ...

BACKGROUND The effect of different thawing procedures for ram semen frozen in minitubes and mini straws on the fertility of sheep was tested in a field trial. METHODS Altogether, 719 Norwegian Crossbred ewes, aged between six months and six-and-a-half years from 8 farms, were inseminated vaginally in natural oestrus with frozen-thawed semen. Minitubes were thawed at 70 degrees C for 8 sec (T7...

The objective of this study was to determine the semen cryopreservation capacity BBB bulls in Hanoi-Vietnam. Research conducted on fresh collected from 05 bulls. Results showed that color normal (milky white, ivory yellow), volume ranged 6.35 mL 7.48 (P &lt;0.05), initial motility 80.53% 82.92% sperm concentration 1.02 x 109 sperms/ml 1.12 sperms/mL abnormal ratio 6.45% 8.12% alive 76.34% 82.97...

Sapera goat is a dairy resulting from cross between Saanen buck and an Ettawah doe. These small ruminants are reared by rural households for poverty reduction undernutrition prevention. Breeding of through artificial insemination (AI) technique was expected to accelerate the increase in population. Unfortunately, frozen semen not available yet. This study aims determine effect distance straw li...