Figure 4. Comparisons of percent cows pregnant following embryo transfer in cool or hot weather. Data are from Putney et al. (1988b) (A), Block et al. (2007) and Loureiro et al. (2009) (B), Ferraz et al. (2016) (C), Chebel et al. (2008) (D), Vasconcelos et al. (2011) (E) and Baruselli et al. (2011) (F). Abbreviations are as follows: ET, embryo transfer; IVF, in vitro fertilized; S. Dakota, South Dakota; Spr., spring; SO, superovulation; Sum., summer; TET, timed embryo transfer; THI, temperature-humidity index; Win., winter. The figure is modified from a technical bulletin by Vetoquinol and is reproduced with permission.
