Table 4

Groups	HTF	TYH	TALP
Table 4. He-IVF efficiency using three different IVF media with prepared red-rumped agouti sperm and matured guinea pig oocytes.
*Cleavage rate (D2)*
Total cleavage (%)	25.3±4.7 (22/87) ^b	19.4±1.3 (21/108) ^b	48.6±2.7 (54/111) ^a
2 cells (%)	16.1±3.5 (14/87) ^a	10.2±3.8 (11/108) ^a	18.0±1.0 (20/111) ^a
3-7 cells (%)	9.2±2.6 (8/87) ^ab	8.3±2.5 (9/108) ^b	18.0±2.1 (20/111) ^a
≥ 8 cells (%)	0.0±0.0 (0/87)^b	0.9±0.6 (1/108) ^b	12.6±1.2 (14/111) ^a
*Cleavage rate (D5)*
Total cleavage (%)	29.9±3.6 (26/87) ^b	38.0±8.8 (41/108) ^b	71.2±4.8 (79/111) ^a
2 cells (%)	6.9±5.0 (6/87) ^a	12.0±8.1 (13/108) ^a	13.5±5.9 (15/111) ^a
3-7 cells (%)	10.3±6.0 (9/87) ^b	13.9±5.5 (15/108) ^ab	23.4±2.1 (26/111) ^a
≥ 8 cells (%)	12.6±4.7 (11/87) ^b	12.0±3.4 (13/108) ^b	31.5±2.5 (35/111) ^a
*Morulae (D5)*
Total (%)	9.2±3.2 (8/87) ^a	9.3±3.3 (10/108) ^a	14.4±1.8(16/111) ^a
Total/cleaved (%)	30.8±10.2 (8/26) ^a	24.4±3.8 (10/41) ^a	20.2±3.1 (16/79) ^a

Mean±standard error. ^a,bValues with different subscript letters are significantly different between treatments (p<0.05). HTF: Human Tubal Fluid medium. TYH: Toyoda-Yokoyama-Hoshi medium. TALP: Tyrode's Albumin Lactate Pyruvate medium. D2: Day two of in vitro culture. D5: Day five of in vitro culture.