Fig. 2
From: Unraveling the impact of hyperleptinemia on female reproduction: insights from transgenic pig model

Puberty, estrus expression, and breeding performance of leptin pigs. (A) Age of puberty in WT (n = 5) and leptin pigs (n = 8). (B) Pattern of estrus expression in WT (n = 5) and leptin pigs (n = 8). Each peak represents the estrous expression. (C). Comparison of inter-estrous interval between WT (n = 5) and leptin pigs (n = 8). (D) Breeding performance of individual leptin pigs (n = 4). Two heads (D, E) get pregnant at 3rd time of breeding with male, while other 2 heads (E, F) remain non-pregnant even after 5–6 times breeding. (H) Comparison of breeding efficiency between leptin (n = 4) and WT (n = 10) pigs