. 2015 Oct 9;62(1):11–16. doi: 10.1262/jrd.2015-067

Table 3. Effect of different donors on in vitro development of bovine embryos generated by OPU-IVF.

Group	Donor	Age	Parity	No. of oocytes	No. (%) of cleaved embryos		No. (%) of blastocysts
Low embryo production	A	16	9	74	11	(16.2 ± 7.6) ^a	2	(2.7 ± 2.4) ^a
	B	10	2	73	19	(31.5 ± 10.2) ^ab	4	(5.5 ± 2.7) ^ab
	C	10	2	83	28	(38.6 ± 3.7) ^ab	6	(7.2 ± 0.6) ^ab
	D	9	1	96	32	(33.3 ± 6.4) ^ab	13	(13.5 ± 2.1) ^ab

Conventional	E	13	2	52	18	(34.6 ± 10.7) ^ab	13	(25.0 ± 9.4) ^ab
	F	13	1	49	24	(49.0 ± 7.4) ^ab	14	(28.6 ± 6.5) ^ab
	G	13	3	45	36	(80.0 ± 5.0) ^b	16	(35.6 ± 9.8) ^b
	H	11	4	126	93	(73.8 ± 16.1) ^b	45	(35.7 ± 7.9) ^b
	I	14	8	76	50	(65.8 ± 5.6) ^b	33	(43.4 ± 9.2) ^b
	J	12	3	70	46	(65.7 ± 8.7) ^ab	32	(45.7 ± 4.4) ^b
	K	15	6	64	49	(76.6 ± 18.0) ^b	32	(50.0 ± 12.7) ^b

Values with superscript letters are statistically significant (P < 0.05). The number of replicates was five. Cleavage and blastocyst rates were evaluated at 72 h and 192 h. Low embryo production differed by ≤ 20% in terms of blastocyst rate.