Table 1. Summary of follicular isolation methods in follicular culture studies.
Isolation Species Follicle - Stage References
Enzymatic Bovine Preantral (60–179µm) Wandji et al., 1996
Canine Pre-and early antral (100–500µm) Songsasen et al., 2011
Human Preantral (90–240µm) Yuan & Guidice, 1999
Immature and secondary (176.46±7.20µm) Laronda et al., 2014
Class I and II (90µm and <90µm) Roy & Treacy, 1993
Primordial/primary follicle (≤60µm)
Primary/early secondary follicle (>60–120µm)
Secondary (>120–250µm)
Yin et al., 2016
Small preantral follicles (42.98±9.06µm) Amorim et al., 2009
Murine PGOC Eppig, 1991
Diaz et al., 2007
O’Brien et al., 2003
PGOC and COC Sugiura et al., 2010
Pangas et al., 2003
Secondary (100–130µm) Desai et al., 2012
Small follicles Torrance et al., 1989
Ovine Primordial and primary (40–60µm) Muruvi et al., 2005
Mechanical Bovine Preantral (≥190µm) Araújo et al., 2015
Preantral (166±2.15µm) Gutierrez et al., 2000
Preantral (190.0±6.6µm) Araújo et al., 2014
Secondary (268.6±4.5µm) Antonino et al., 2019
Preantral (145–170µm) Itoh et al., 2002
Secondary (≥150µm) Rossetto et al., 2013a
Caprine Secondary (≥150µm) Rossetto et al., 2013a
Preantral (>200µm) Magalhães et al., 2011
Preantral and early antral (~250µm, ~350µm) Ferreira et al., 2016
Preantral (150–250µm) Silva et al., 2015
Human Secondary (≥100µm) McLaughlin et al., 2014
Secondary (100–150µm) McLaughlin et al., 2018
Preantral (66–132µm) Telfer et al., 2008
Multi-layered secondary (165.8±32.3µm) Xiao et al., 2015
Preantral (>120µm) Abir et al., 1997
Marsupial Primordial (63.6–215.5µm) Nation & Selwood, 2009
Murine Secondary (111–137µm) Jin et al., 2010
Preantral (85–115µm) Hornick et al., 2013
Two-layered: (100–130µm); multi-layered: (150–180µm) Kreeger et al., 2005; 2006
Two-layered secondary (100–130µm) Shikanov et al., 2009
Xu et al., 2006b
Mainigi et al., 2011
Primary (60–80mm); two-layered (90–100µm) Tagler et al., 2014
Secondary (~90, 100–105, or 120µm) Tingen et al., 2011
Secondary (180–210µm) Skory et al., 2015
COC Buccione et al., 1990
Antral (360.94±16.1µm) Craig et al., 2010
Antral (200–350µm) Craig et al., 2013
Antral (250–400µm) Hannon et al., 2015
Hannon et al., 2015
Peretz & Flaws, 2013
Zhou & Flaws, 2017
Patel et al., 2016
Peretz et al., 2013
    Antral (225–400µm) Mahalingam et al., 2016a; 2016b
Antral (>200 µm) Miller et al., 2005
Preantral (180–240µm) Wycherley et al., 2004
Preantral (150–200µm) Adam et al., 2004
PGOC Eppig, 1980
Early preantral (100 and 130µm) Adriaens et al., 2004
Preantral (150-160µm) Heise et al., 2005
Preantral (140-170µm) Heise et al., 2009
Ovine Preantral small (130±10µm)
Preantral medium (185±14µm)
Preantral large (250±10µm)
Cecconi et al., 1999
Preantral (161±2µm) Thomas et al., 2003
Preantral (250–400µm) Arunakumari et al., 2010
Porcine Preantral (296±9µm) Wu et al., 2001
Rhesus Secondary (100–300µm) Xu et al., 2009a
COC Peluffo et al., 2012
Small antral (≥0.5mm) Peluffo et al., 2013
Secondary (140–225µm) Xu et al., 2018
Secondary (125–250µm) Baba et al., 2017
Secondary (125–225µm) Rodrigues et al., 2015
Secondary (125–250µm) Ting et al., 2015
Primary (80–120µm)
secondary (125–225µm)
Xu et al., 2013
Secondary (130–220µm) Xu et al., 2015b
Feline Secondary (100–200µm) Songsasen et al., 2017
Secondary (208±7.9µm diameter)
Early antral (329.8±5.4µm)
Thongkittidilok et al., 2018
Combined Enzymatic/Mechanical Baboon Preantral (270–300µm) Xu et al., 2011b
Human Secondary (74–260µm) Skory et al., 2015
Primary (47.0±8.2µm) Abir et al., 1999
Preantral (190±30µm) Aziz et al., 2017
Secondary (~170µm) Xu et al., 2009b
Murine Preantral (~60–69µm) Oktem & Oktay, 2007
Preantral follicles and COC Vanderhyden et al., 1992
Immature secondary (140–150µm) Shikanov et al., 2011
Multi-layered secondary (150–180µm) Xu et al., 2006a
Porcine Preantral (200–300µm) Hirao et al., 1994
Rhesus COC Peluffo et al., 2010
Secondary (125–225µm) Xu et al., 2011a
Xu et al., 2010