Table 6. Reproductive parameters of Holstein x Gyr crossbred heifers on a rotational grazing system Panicum maximum cv. Mombaça pasture.

Item1	Supplement2			SEM3	P-Value4
	CON	S12CP	S24CP		CON × SUP	S12CP × S24CP	PER	TR × PER
Follicles visualized, no	13.31	12.83	17.89	1.100	0.273	0.016	0.992	0.998
Oocytes recovered, no	10.68	12.15	14.79	1.129	0.132	0.257	0.956	0.967
Recovery rate, %	83.92	99.31	87.95	7.395	0.306	0.298	0.919	0.066
Viable oocytes, no	6.07	5.39	7.25	1.572	0.926	0.420	0.007	0.547
Viable oocytes/Oocytes recovered, %	50.64	44.34	40.17	3.651	0.078	0.398	0.081	0.090
Cleaved Oocytes, no	2.81	1.53	2.51	0.406	0.099	0.082	0.666	0.528
CR, %	47.17	23.92	36.71	5.716	0.017	0.102	0.676	0.359
IVPE, no	1.66	0.27	1.33	0.281	0.016	0.011	0.845	0.721
Blastocysts/Cleaved oocytes, %	58.30	15.26	44.57	9.436	0.019	0.055	0.214	0.666

¹CR = cleavage rate; IVPE = in vitro produced embryos.

²CON = not supplemented; S12CP: supplemented with concentrate containing 12% CP; S24CP: supplemented with concentrate containing 24% CP.

³Standard error of the mean.

⁴CON × SUP = effect of supplementation; S12CP × S24CP = effect between protein levels in the supplement; PER = effect of period; TR×PER = interaction effect between supplementation and period