OLORUNSOLA, R. A. EFFECT OF LEVELS OF NIACIN SUPPLEMENTATION ON THE HAEMATOLOGICAL \AND SERUM PARAMETERS OF LAYING HENS. . Nigerian Journal of Animal Production, [S. l.], p. 298–300, 2024. DOI: 10.51791/njap.vi.4620. Disponível em: https://njap.org.ng/index.php/njap/article/view/4620. Acesso em: 25 aug. 2026.