Table 3.
List of the structural/functional indices and calculation formulas used to generate them.
| Structural Indices | Calculation Formulas | The implication of the indices | References |
|---|---|---|---|
| Height slope (HS) | Hip height - Wither height | (Khargharia et al., 2015) | |
| Length index/Relative body index (LI) | (Body length x 100)/Wither height | (Chiemela et al., 2016) | |
| Girth index (GI) | Paunch girth/Heart girth | (Khargharia et al., 2015) | |
| Body index (BI) | (Body length/Heart girth) x 100 | >0.90, the animal is longiline; between 0.86 to 0.88 is medigline; and <0.85, it is brevigline | (Dauda, 2018) |
| Proportionality (IPr) | (Wither height/Body length) x 100 | ||
| Pelvic index (PI) | (Rump width/Rump length) x 100 | ||
| Transverse pelvic (IPT) | (Rump width/Hip height) x 100 | ||
| Longitudinal pelvic (IPL) | (Rump length/Hip height) x 100 | (Khargharia et al., 2015) | |
| Dactyl thorax index (DTI) | (Cannon circumference/Heart girth) x 100 | The DTI may not be more than 10.5 in light animals, up to 10.8 in an intermediary, up to 11.0 in light meat animals, and up to 11.5 in heavy meat type. | |
| Thoracic development (TD | Heart girth/Wither height | This indicates thoracic development of animals, with values above 1.2 indicating animals with good TD. | (Dauda, 2018) |
| Body ratio (BR) | Wither height/Hip height | If the withers are lower than the rump, the animal is low in front and vice versa | (Chiemela et al., 2016) |
| Baron & crevat/Conformation index (BC) | (Heart girth)2/Wither height | Should be close to 2.1 the bigger the index, the closer the animal is to the traction type; the smaller this index, the weaker the animal will be | (Dauda, 2018) |
| Compact index 1 (CI1) | (Weight/Wither height)/100 | The compact index indicates how compact the animal is. Meat-type animals have values above 3.15. A value close to 2.75 indicates the dual purpose, and close to 2.60 indicates that the animals are more suitable for milk purpose | (Dauda, 2018) |
| Area index (AI) | Wither height x Body length | ||
| Relative cannon thickness index (RCTI) | (Cannon circumference/Wither height)100 | (Khargharia et al., 2015) | |
| Weight-1(W1) | (0.5 × Heart girth) – 14.87 | (Chiemela et al., 2016) | |
| Weight-2 (W2) | (0.63 × Heart girth) – 19.5 | ||
| Over increase index (OII) | Hip height/Wither height x 100 | (Hankamo et al., 2020) | |
| Width slope (WS) | Rump width/Chest width | (Chiemela et al., 2016) |