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KAI QUAN; XINGXU ZHAO; CHANGXING ZHANG; QIULIANG XU; HONGFANG WEI; JUNJIE HU; YONG ZHANG. A novel approach for very early pregnancy diagnosis in swine by anti-early pregnancy factor (EPF) antiserum blocking enzyme-linked immunosorbent assay (ELISA). African Journal of Pig Farming, [S. l.], v. 2, n. 1, p. 1–7, 2014. Disponível em: https://www.elixirpublishers.in/index.php/ajpf/article/view/641. Acesso em: 10 may. 2026.