Academy of Agriculture Journal http://innovativejournal.in/index.php/aaj <div class="clearfix details-container"> <div class="details margin-top-for-large margin-top-for-medium"> <div class="description"><em>The Academy of Agriculture Journal</em>&nbsp;publishes papers concerned with the advance of agriculture and the use of land resources throughout the world. It publishes original scientific work related to strategic and applied studies in all aspects of agricultural science and exploited species, as well as reviews of scientific topics of current agricultural relevance. Specific topics of interest include (but are not confined to): all aspects of crop and animal physiology, modelling of crop and animal systems, the scientific underpinning of agronomy and husbandry, animal welfare and behaviour, soil science, plant and animal product quality, plant and animal nutrition, engineering solutions, decision support systems, land use, environmental impacts of agriculture and forestry, impacts of climate change, rural biodiversity, experimental design and statistical analysis, and the application of new analytical and study methods (including genetic diversity and molecular biology approaches). The journal also publishes book reviews and letters. Occasional themed issues are published which have recently included centenary reviews, wheat papers and modelling animal systems.</div> </div> </div> Academy of Agriculture Journal en-US Academy of Agriculture Journal 2456-2416 Fresh and Post Thaw Quality Characteristics of Holstein Friesian Bull Semen http://innovativejournal.in/index.php/aaj/article/view/2435 <p>The study was conducted to determine the quality characteristics of fresh and post-thaw semen of Holstein Friesian bull. The cow bulls were maintained at Semen Production Unit, Quetta Baluchistan. The semen ejaculates were evaluated for volume, pH, mass activity, sperm concentration, sperm motility and sperm cell membrane integrity. The semen qualifying these criteria were processed for freezing. The frozen semen after thawing was assessed for progressive linear motility and percentage of intact cell membrane.&nbsp; The mean ejaculate volume of collected semen was recorded as 6.93, 6.59 and 6.61 ml, pH; 6.58, 6.59 and 6.61, mass activity of sperms 3.87, 3.75 and 3.5 and sperm concentration 1349.12x10<sup>6</sup>, 1509.37x10<sup>6 </sup>&nbsp;and 1364.37x10<sup>6 </sup>/ml during the month of May, June and July respectively.&nbsp; The color of semen was not consistent pattern, it varied as creamy white and milky white. The motility of fresh and post thaw semen was assessed as 73.9 vs 48.75%; 75 vs. 53.75%; 75 vs. 53.12% for the month of May, June and July respectively.&nbsp; The membrane integrity of the fresh semen samples over a period of three month was 58.37% against post-thaw membrane integrity of 44.79%. It was concluded that the objective method of Osmotic Resistance Test was found to be useful parameter for assessment of in-vitro quality of the semen. The semen of Holstein Friesian bull tolerates freezing and thawing stress and maintained reasonable good fertility. The summer season has no significant adverse effect on quality of semen and thus the semen collected could be considered for artificial insemination program.</p> Zahid Iqbal ##submission.copyrightStatement## 2019-02-08 2019-02-08 4 02 10.15520/aaj.v4i02.2435