Based on the provided reference, sheep typically stop growing in terms of reaching their maximum live weight around 5 to 6 years of age. By 7 years, many ewes have passed this peak and their weight may begin to decline.
Understanding Growth in Sheep
When discussing growth in sheep, it often refers to their physical development and increase in body weight. While sheep reach maturity relatively early, achieving their full size and weight potential takes several years. The provided data focuses on the live weight of ewes (female sheep), which is a key indicator of physical growth.
Key Findings from the Reference
The reference highlights the following specific ages regarding the growth trajectory of ewes:
- Maximum Live Weight: Ewes most commonly achieved their maximum live weight at 5-6 years.
- Weight Decline: With the exception of one flock, ewes had passed their maximum live weight and were declining in weight by 7 years.
- Weight Gain: From the 2-year stage to the maximum weight, ewes gained between 5 kg and 11 kg, with an average gain of 8.5 kg.
This suggests that while significant growth occurs in the earlier years, the final increments leading to peak weight continue into the mid-adulthood stage (5-6 years) before a potential decline begins.
Growth Stages Timeline
Based on the reference, we can outline the later growth stages for ewes:
| Age Range | Growth Stage | Insight from Reference |
|---|---|---|
| Up to 2 years | Significant growth to near maturity | Weight gain from 2 years to max weight is 5-11 kg |
| 5-6 years | Reaching Maximum Live Weight | Most common age for peak weight |
| 7+ years | Passing Maximum Weight / Decline | Ewes often start losing weight after this age range |
It is important to note that these figures are based on the specific study mentioned and can be influenced by factors such as breed, nutrition, health, and environmental conditions. However, the data provides a clear indication that growth, in terms of achieving peak body mass, extends well beyond the initial developmental years into middle age for ewes.
