AgriWebb uses age classes to help you better manage your stock on farm from a management and reporting perspective. Each age class is made up of a number of characteristics including sex, weaning status, fertility status and if they have produced offspring.
Efficient management of livestock involves correctly classifying animals by their age classes and ensuring these are up-to-date.
Getting your animals into AgriWebb with the correct age class and keeping your weaning, castration and birth records up to date, will mean that AgriWebb can automatically age your animals. Take a look at the tables below to see the definition of each age class available.
Cattle
Calves
Age Class | Definition | How to age in AgriWebb? | New age class |
Calf | Unsexed, unweaned cattle under 11 months old. |
| Weaner
Heifer Calf, Steer Calf or Bull Calf |
Heifer Calf | Female, unweaned cattle under 11 months old. |
| Heifer Weaner |
Steer Calf | Male, castrated, unweaned cattle under 11 months old. |
| Steer Weaner |
Bull Calf | Male, unweaned cattle under 11 months old. |
| Bull Weaner
|
Weaners
Age Class | Definition | How to age in AgriWebb? | New age class |
Weaner | Weaned, unsexed cattle or between 11-12 months old. |
| Yearling *used in IAM only
Heifer Weaner, Steer Weaner or Bull Weaner |
Heifer Weaner | Weaned, female cattle or between 11-12 months old. |
| Heifer
Spayed Heifer or Spayed Cow |
Steer Weaner | Weaned, male, castrated cattle or between 11-12 months old. |
| Steer |
Bull Weaner | Weaned, male, cattle or between 11-12 months old. |
| Bull
Steer Weaner |
Adult Cattle
After 12 months, cattle are now classed as adults.
Age Class | Definition | How to age in AgriWebb? | New age class |
Yearling *used in IAM only | Unsexed cattle, > 12 months old. |
| Heifer or Bull |
Spayed Heifer | Female adult cattle, who has been neutered. | Does not age | Does not age |
Heifer | Female adult cattle, who has not produced a calf. |
| Cow |
Spayed Cow | Female adult cattle, who has been neutered. | Does not age | Does not age |
Cow | Female adult cattle, who has produced at least 1 calf. | Does not age | Does not age |
Steer | Male, castrated adult cattle. | Does not age | Does not age |
Bull | Male adult cattle. |
| Steer |
Sheep
Lambs
NOTE: if <14 weeks and they will remain a lamb, regardless of if a weaning record has been applied.
Age Class | Definition | How to age in AgriWebb? | New age class |
Lamb | Unsexed, unweaned sheep under 12 months old. |
| Weaner
Ewe Weaner, Wether Weaner or Ram Weaner |
Ewe Lamb | Female, unweaned sheep under 12 months old. |
| Ewe Weaner |
Wether Lamb | Male, castrated, unweaned sheep under 12 months old. |
| Wether Weaner |
Ram Lamb | Male, unweaned sheep under 12 months old. |
| Ram Weaner Wether Weaner
|
Weaners
Age Class | Definition | How to age in AgriWebb? | New age class |
Weaner | Weaned, unsexed sheep, >14 weeks old. |
| Hogget
Ewe Hogget, Wether Hogget, Ram Hogget |
Ewe Weaner | Weaned, female sheep, >14 weeks old. |
| Ewe Hogget |
Wether Weaner | Weaned, male, castrated sheep, >14 weeks old. |
| Wether Hogget |
Ram Weaner | Weaned, male, sheep, >14 weeks old. |
| Ram Hogget
Wether Weaner |
Hoggets
NOTE: Hoggets are sheep that are between 1 to 2 years old.
Age Class | Definition | How to age in AgriWebb? | New age class |
Hogget | Weaned, unsexed sheep, >1 year old. | Does not age
| Does not age
Ewe Hogget, Wether Hogget or Ram Hogget |
Ewe Hogget | Weaned, female sheep, >1 year old. |
| Maiden Ewe |
Wether Hogget | Weaned, male, castrated sheep, >1 year old. |
| Wether |
Ram Hogget | Weaned, male, sheep, >1 year old. |
| Ram |
Adult Sheep
Over 2 years old, sheep are now classed as adults
Age Class | Definition | How to age in AgriWebb? | New age class |
Maiden Ewe | Female adult sheep, who has not produced a lamb. |
| Ewe |
Ewe | Female adult sheep, who has produced at least 1 lamb. | Does not age | Does not age |
Wether | Male, castrated adult sheep. | Does not age | Does not age |
Ram | Male adult sheep. |
| Wether |
Manual Updates for Age Classes
When automatic updates do not suit your specific needs, manual adjustments are available. Here’s how you can update age classes;
For individual animals
Navigate to the web app and select the animals you want to update.
Click on the "Actions" button followed by "Edit Animal."
Modify the "Age Class" to match the correct category for your livestock.
For multiple animals
Use CSV file to bulk update age classes.
The .csv should contain an animal identifier (EID/VID) and its updated Age Class.
Once you have your .csv head to the Livestock Tab -> Import Animal Data -> Import Animal Updates and follow the steps to upload your .csv and update their Age Class
Updating animals age classes using the import animal updates feature will update their Age Class for all time.
E.G. if you are looking to manually bulk update a group of heifer calves to heifers via .csv update, their history will only show their heifer age class, not heifer calf.
Resolving date of birth and age class errors
Errors might occur when the Date of Birth (DOB) and age class don’t align. Each age class has specific rules around allowable age ranges:
Cattle under 11 months should be classified as Steer Calves.
Cattle between 11–12 months should be classified as Steer Weaners.
Animals over these ranges but classified incorrectly will trigger a DOB error. If you cannot correctly update the date of birth due to system restrictions, consider categorising your livestock temporarily under a different acceptable class (e.g. "Heifer Weaners").
Helpful Articles
For further guidance on managing livestock age classes, including troubleshooting or bulk update processes, contact our support team for assistance.