Ascorbic acid, or vitamin C, is essential for improving reproductive success in sows and raising poultry. By promoting oxidative stress reduction and immunological function, vitamin C supplementation has been demonstrated to enhance egg production, hatchability, and embryo viability in chicken (Kumar et al., 2018). Better reproductive outcomes result from its stabilization of hormonal balance and enhancement of ovarian follicle development (Ahmed et al., 2019). Likewise, vitamin C supplementation during pregnancy has been linked to better milk production, larger litters, and higher piglet survival rates in sows (Gao et al., 2020). Collagen synthesis, which is essential for uterine health and fetal development, is aided by vitamin C (Kumar et al., 2018). Furthermore, it reduces oxidative stress during pregnancy, which improves overall reproductive efficiency and lowers embryonic mortality (Gao et al., 2020). By boosting immunological responses, vitamin C supplements have been demonstrated to mitigate the negative effects of stressors such heat stress on reproduction (Yao et al., 2017). Vitamin C has also been connected to better semen quality and increased male breeding fertility in chicken (Saleh et al., 2021). Better fertility results are a result of vitamin C’s antioxidant qualities, which support the preservation of cellular integrity in reproductive tissues (Ahmed et al., 2019). Supplementing with vitamin C seems to be a useful tactic to improve reproductive success in sows and breeding poultry, particularly in stressful situations (Gao et al., 2020).