Figure 4
From: The development of suckling behavior of neonatal mice is regulated by birth
Birth regulates the development of suckling behavior. (A) The experimental procedure to induce preterm birth using mifepristone. Mifepristone (Mife) or saline was injected between 21:30 and 22:30 at 16 dpc. (B) Nipple attachment latency was reduced markedly earlier in preterm pups than in full-term pups. At 25.75 dpc, nipple attachment latency was significantly smaller in preterm pup than in full-term pups (*p < 0.05, Mann–Whitney U test, mean ± SD). (C) Body weight was not affected by preterm birth (p > 0.4, Student’s t-test, mean ± SD). (D) The righting reflex latency was not affected by preterm birth (p > 0.4, Student’s t-test, mean ± SD).