Short-wave solar radiation level willingly tolerated by lactating Holstein cows in an equatorial semi-arid environment

• Steffan Edward Octávio Oliveira, Cíntia Carol de Melo Costa, João Batista Freire de Souza, João Paulo Araújo Fernandes de Queiroz, Alex Sandro Campos Maia, Leonardo Lelis de Macedo Costa

• Tropical Animal Health and Production, August 2014, Springer Science + Business Media
• DOI: 10.1007/s11250-014-0657-7