Table 1.
Main characteristics of studies included in the calculations to assess differences in gestation length, calf birthweight, and growth between late-gestation in utero heat-stressed Holstein calves and in utero cooled Holstein calves
| References | Breed | Heat stress exposure days before calving |
Location | Dam parity |
Pair feeding |
|---|---|---|---|---|---|
| Collier et al. (1982) | Holstein | 60 | Bermuda | Multiparous | No |
| Wolfenson et al. (1988) | Holstein | 60 | Israel | Multiparous | No |
| Avendano-Reyes et al. (2006) | Holstein | 60 | Mexico | Multiparous | No |
| Adin et al. (2009) | Holstein | 56 | Israel | Multiparous | No |
| do Amaral et al. (2009) | Holstein | 46 | FL, USA | Multiparous | No |
| do Amaral et al. (2011) | Holstein | 46 | FL, USA | Multiparous | No |
| Tao et al. (2011) | Holstein | 46 | FL, USA | Multiparous | No |
| Tao et al. (2012a) | Holstein | 46 | FL, USA | Multiparous | No |
| Tao et al. (2012b) | Holstein | 45 | FL, USA | Multiparous | No |
| Tao et al. (2014) | Holstein | 45 | FL, USA | Multiparous | No |
| Monteiro et al. (2014) | Holstein | 46 | FL, USA | Multiparous | No |
| Karimi et al. (2015) | Holstein | 21 | Iran | Multiparous | No |
| Monteiro et al. (2016) | Holstein | 45 | FL, USA | Multiparous | No |
| Guo et al. (2016) | Holstein | 45 | FL, USA | Multiparous | No |
| Laporta et al. (2017) | Holstein | 46 | FL, USA | Multiparous | No |
| Fabris et al. (2019) | Holstein | 45 | FL, USA | Multiparous | No |
| Dado-Senn et al. (2020) | Holstein | 44 | FL, USA | Multiparous | No |
| Almoosavi et al. (2020) | Holstein | 45 | Iran | Multiparous | Yes |
| Davidson et al. (2021) | Holstein | 60 | FL, USA | Nulliparous | No |