In the mid-1980s, advances in in ovo vaccination technology allowed poultry embryos to be immunized inside the egg against diseases like Marek's. This efficient method improved flock health and reduced antibiotic use. It represented progress in agricultural biotechnology, paralleling broader scientific themes in contemporary poetry addressing life, intervention, and ethics.

Advances in in ovo vaccination in 1985 symbolized biotech intervention, prompting poets to question natural boundaries. Works by poets like Jorie Graham and A.R. Ammons explored themes of science, ethics, and the human condition in the face of technological progress.