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Table 6 The effects of NPs on the developmental competence of immature porcine oocytes from 4.1-6.0 mm follicles (mean ± S. E. M.)

From: Natriuretic peptides improve the developmental competence of in vitro cultured porcine oocytes

  oocytes(n) cleaved oocytes (%) blastocysts (%)
control 214 40.5 ± 1.42 a 13.5 ± 2.9 a
cilostamide 267 47.2 ± 2.04 ab 15.2 ± 1.5 ab
BNP 245 52.1 ± 2.01 b 16.5 ± 2.6 b
CNP 223 51.9 ± 1.28 b 17.6 ± 2.3 b
  1. Cleavage rates on day 2 and Blastocyst developmental rates on day 7 after IVF of the COCs recovered from the 4.1 - 6.0 mm follicles in standard IVM for 46 h (as negative controls), or pre-cultured with PMCI–cilostamide 20 h plus IVM 46 h (as positive controls) and pre-cultured with PMCI–BNP/CNP 20 h plus IVM 46 h (as experimental groups). abMeans in the same column with different superscripts were significantly different (p < 0.05)