Abstract: Based on panel data from 31 provinces in China from 2013 to 2023, an evaluation system for digital and intelligent (DI) development was constructed from four dimensions: DI infrastructure, DI industry scale, DI innovation capacity, and DI application penetration. A two-way fixed effects model and a threshold regression model were employed to systematically examine the effects, mechanisms, and boundary conditions of DI development on environmental pollution from animal husbandry, providing empirical evidence for promoting the green transformation of the livestock industry. The results show that: 1) DI development significantly reduces environmental pollution from animal husbandry, and this finding remains robust after addressing endogeneity and conducting various robustness checks; 2) DI development mainly reduces environmental pollution from animal husbandry through two pathways, namely increasing investment in science and technology and promoting technological innovation, as well as improving feed output efficiency and optimizing production management; 3) industrial agglomeration positively moderates the pollution reduction effect of DI development, with a higher level of industrial agglomeration associated with a stronger environmental governance effect; 4) the pollution reduction effect of DI development exhibits significant spatial heterogeneity, with significant effects observed in the eastern and western regions. Among the pig production functional zones, significant pollution reduction effects are observed in restricted development zones, moderate development zones, and potential growth zones, with the level of significance decreasing sequentially; and 5) green finance development exhibits a significant threshold effect in the process through which DI development reduces environmental pollution from animal husbandry. Once the level of green finance development exceeds the threshold, the environmental governance effect of DI development shifts from an insignificant effect or even an increase in environmental pressure to a significant pollution reduction effect. Accordingly, efforts should be made to continuously improve DI infrastructure for the livestock industry, strengthen the synergy between technological innovation and refined management, promote industrial agglomeration, and improve the green finance support system to fully realize the environmental governance potential of DI development.