Table 3.
Input variables and their values used to simulate five studies used to evaluate the large ruminant nutrition system (LRNS) model
| LRNS inputs1 | Study
|
||||
|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | |
| Sex | Bull | Bull | Bull | Bull | Bull |
| Body condition score (1 to 9) | 5 | 5 | 5 | 5 | 5 |
| Breeding system | Straight bred | Straight bred | Straight bred | Straight bred | Straight bred |
| Breed selection in LRNS | Gir | Gir | Gir | Brahman | Brahman |
| Body fat endpoint (g/kg) | 220 | 220 | 220 | 220 | 220 |
| Wind speed (km/h) | 0 | 0 | 0 | 0 | 0 |
| Previous temperature (°C) | 20 | 20 | 27 | 27 | 23 |
| Previous relative humidity (%) | 75 | 75 | 86 | 86 | 86 |
| Current temperature (°C) | 24 | 24 | 25 | 25 | 22 |
| Current relative humidity (%) | 80 | 80 | 89 | 89 | 89 |
| Hours in sunlight | 0 | 0 | 0 | 0 | 0 |
| Hair depth (cm) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Mud depth (cm) | 0 | 0 | 0 | 0 | 0 |
| Hide | thin | thin | thin | thin | Thin |
| Hair coat | no mud | no mud | no mud | no mud | no mud |
| Cattle panting | none | none | none | none | none |
| Min night temperature (°C) | 21 | 21 | 21 | 21 | 21 |
| Time spent standing (h/d) | 12 | 12 | 12 | 12 | 12 |
| Daily body position changes | 6 | 6 | 6 | 6 | 6 |
| Flat distance walked (m/d) | 0 | 0 | 0 | 0 | 0 |
| Sloped distance walked (m/d) | 0 | 0 | 0 | 0 | 0 |
1
Values were based on measured values during the experimentation period and by expert estimation.