SAXENA, P C; TIWARI, D P; KUMAR, ANIL; MONDAL, B C. Effect of dietary supplementation of copper and phosphorus on nutrient utilizationand growth in crossbred heifers. The Indian Journal of Animal Sciences, Delhi, India, v. 80, n. 1, 2011. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/2736. Acesso em: 23 oct. 2025.