| Management system |
Intensive (Manyazewal et al., 2018) |
Gashaw et al., 2020; Birhanu et al., 2017
|
3 |
| Farm location |
Urban (Manyazewal et al., 2018) |
Ayele et al., 2018 |
2 |
| Pen type |
Group pen (Manyazewal et al., 2018) |
– |
1 |
| Other diseases |
Presence (Manyazewal et al., 2018) |
– |
1 |
| Colostrum feeding method |
Suckling (Manyazewal et al., 2018
|
– |
1 |
| Altitude |
Highland (Abebe et al., 2008) |
– |
1 |
| Age |
Increasing age (Wegayehu et al., 2016), pre-weaned (Manyazewal et al., 2017), <6 months (Ayele et al., 2018; Gashaw et al., 2020), ≤3 months (Regassa et al., 2013) |
Abebe et al., 2008; Hailu et al., 2020; Birhanu et al., 2017; Ayana and Alemu, 2015; Wegayehu et al., 2013
|
10 |
| Weaning age |
≥6 months (Manyazewal et al., 2018) |
– |
1 |
| Sex |
– |
Manyazewal et al., 2017; Gashaw et al., 2020; Regassa et al., 2013; Ayele et al., 2018; Birhanu et al., 2017; Wegayehu et al., 2013
|
6 |
| Breed |
Crossbred (Wegayehu et al., 2016), exotic blood level > 75% (Manyazewal et al., 2017), cross/exotic breed (Birhanu et al., 2017) |
Hailu et al., 2020, Ayele et al., 2018
|
5 |
| Farm type |
– |
Hailu et al., 2020 |
1 |
| Parity of dam |
>2nd parity (Manyazewal et al., 2017) |
– |
1 |
| Feeding system |
On the ground (Abebe et al., 2008) |
– |
1 |
| Feed source |
Milk with pasture (Ayele et al., 2018) |
– |
1 |
| Hygiene of calf houses |
Fair & poor (Abebe et al., 2008; Manyazewal et al., 2018; Ayele et al., 2018) |
– |
3 |
| Drinking water source |
River (Manyazewal et al., 2018; Ayele et al., 2018) |
Hailu et al., 2020 |
3 |
| Herd composition |
– |
Hailu et al., 2020; Ayana and Alemu, 2015
|
2 |
| Feeding type (indoor/outdoor) |
– |
Hailu et al., 2020 |
1 |
| Herd size |
Small (Abebe et al., 2008), 8–29 animals (Hailu et al., 2020), <30 & 30–100 animals (Manyazewal et al., 2018) |
Hailu et al., 2020 |
4 |
| Preweaning housing |
Tethered in cow-barn (Abebe et al., 2008) |
– |
1 |
| Faecal consistency |
Soft & normal (Abebe et al., 2008), diarrhoea (Hailu et al., 2020; Manyazewal et al., 2017; Gashaw et al., 2020; Ayele et al., 2018; Ayana and Alemu, 2015) |
– |
6 |
