If you can tell me the context of where you found this, I can tell you if it's about:
The data derived from this specific age group (AT1-9(2)) allows farmers and researchers to estimate body weight based on physical measurements (like heart girth or body length). This is essential for: Determining optimal slaughter age. Monitoring nutritional health. Improving breeding selection for higher productivity.
In studies of sheep, the 1.9–2 years age group is crucial for analyzing correlations between physical measurements and weight. Key insights include:
Within this age group, multiple morphological variables show strong significance ( ) in relation to body weight.
I can also look for more information if this isn't the "AT1-9(2)" you meant. sja_v_18_i_1_2020.pdf - SAARC Agriculture Centre