Semen Catalog & Semen Classifications

 

Semen Catalog & Purchases

We now have a catalog that has frozen semen units that we will be distributing during the 2018 breeding season!  Contact us today if you would like to purchase some units for the season!

Click here to go to the digital semen catalog.

 

Please email info@reprospecialty.us or call 765-978-0301 for all semen purchases.  Sales will only be finalized once a credit card payment has been made.

Semen Quality Classification System

The RSG Semen Quality Classification System

RSG Select – these units were collected, frozen and stored at RSG the whole time.  This semen has been certified good quality through manual and CASA Analysis (CASA- Computer Assisted Semen Analysis).  These units are available through RSG.

RSG Reserve – these units were collected, frozen, and stored at RSG the whole time.  This semen has been certified good quality through manual and CASA Analysis (CASA- Computer Assisted Semen Analysis).  These units are for sale by individual owners.

RSG Certified- these units were collected and frozen at other facilities and shipped into RSG for storage.  The semen has been certified good quality through manual and CASA analysis.  Stored at RSG from certification point until use to insure proper handling techniques maintain quality levels.

RSG Available- these units are currently stored at RSG.  It is available for use however quality is not known.

 

“Certificate of Quality” – This will be a computer (IVOS II / CASA) generated certificate of quality. The semen seller can use this certificate to provide potential buyers assurances of the semen quality being stored at RSG. This can be available for online sale or private distributions. This will provide the seller and buy assurances of what they are trading.

The certification only holds current on the semen stored at RSG. Once the semen leaves RSG it is critical to understand proper handling and storage of semen to insure the highest quality product possible. We can not guarantee the quality once semen is stored in on farm tanks as they may vary in nitrogen level maintained, as well as miss handling of the canister can all result in damage to the semen in the straws.

Units lose the certification once removed from storage at RSG, as we cannot insure proper handling to maintain units after removal from our storage.

Certification Standards

 

  • Concentration: Minimum number of linear progressive sperm cells per breeding is 30 million cells live post thaw. RSG straws will generally have 40 to 45 million live per straw.

 

  • Live Rate: Percentage live is only relevant in relation to the concentration of the sample being 60 million total sperm cells. 50% live is the minimum live to dead sperm cell ratio we accept. Greater than 50% dead cell creates an unfavorable environment and poorer conception rates.

 

  • Linear Progression: Sperm calls can be alive and moving however not be of sufficient quality to fertilize an oocyte. Linear progressive cells are the ones moving in a straight line with the greatest ability to fertilize.

 

  • Cell Speed: Cells swimming at slower speeds are less likely to be able to reach the oviduct. The speed scale is set at 0 to 5 with 5 being the best. Good quality frozen semen will achieve a level 4. Less than a 4 we will discard the straws and collect again.

 

  • Morphology: Within biology it is defined as the form of the living organism. In general terms the sperm cell is made up of the Head, Midpiece and Tail. There are text books dedicated to the study and description of proper sperm cell morphology so suffice to say that normal structure is critical to proper cell function. Most commonly seen abnormalities include abnormal tail structure, cytoplasmic droplets, detached heads. If a sample has greater that 20% of the cells with abnormal morphology it will begin to affect fertilization ability. RSG standard is 15%.