Pregnancy Testing and Calculating Sire

Which option should I select when I am calculating Sires from an AI and a back up bull? 

Step 1

• Select the Animals to calculate the sires
  • See https://support.practicalsystems.com.au/Articles?id=1034 Knowledge Base article: Select Animals on the Main Animal Screen

Step 2

• Select the Events > Preg. Test/ Scan menu option. 
• Click on the  OK button
  • ​

Step 3

• Enter the required information
  • the No. Weeks pregnant
  • Select from the Test Type options 
  • Enter the Test Date
  • Select the Sire > Calculate option 
  • Select the From Join option (see Notes below) that you want to calculate the sire from
  • Optional: Enter the details under Defaults if you wish to do so
• Click on the OK button. 
  • ​

• Click on the Yes button to confirm setting the pregnancy status
  • ​

NOTES:

• The 2nd-last (AI) refers to the second last joining in this period which is normally the AI joining,
• The Last (Backup) refers to the last joining in this period which is normally a back-up bull, which has been used after any AI.
• The way the program will calculate the Sire is dependent on what data you have entered for each animal and joining. Here is a brief outline of how the Sire is calculated:
  • If you do not enter the No. of Weeks OR select Last (Backup) :
    • ​If Last (Backup) option is selected it will select the sire from the last joining, OR
    • If you selected the 2nd-Last (AI) option and there are two joinings in this period then it will select the second last joining, OR  
    • It will select the last joining.
  • If you have entered the No. of Weeks and do not select the Last (Backup) option:
    • The program will calculate a conception date and determine which joining best corresponds to this conception date (refer to conception windows for different joining types below), OR 
    • It may find that two joinings meet the criteria, in which case you will have to manually select one and/or Stockbook will not select one.

• Different Types of joinings indicate different conception periods:
  • Natural Joinings: Conception date can be between 14 days before joining to 90 days after joining (If no Date Out for Bulls is recorded) or 14 days after joining Date Out.
  • AI and Hand Mate: Conception date can be +/- 14 days of the joining date.
  • ET: Conception date can be between 21 days before the joining date and 7 days after.