1. Amaradasa, BS, Lane, RA, Manage, A, 2010 Vertical migration of Haemonchus contortus infective larvae on Cynodon dactylon and Paspalum notatum pastures in response to climatic conditions, Veterinary Parasitology, 170, 78-87
2. AOAC, 1995 Official Methods of Analysis, 15ed (Association of Official Analytical Chemist, Washington, DC, USA)
3. Barthram, GT, 1986 Experimental Techniques: the HFRO Sward Stick. Biennial Report, 1984–1985, Hill Farming Research Organisation, 29–30
4. Bowman, DD, Georgi, JR, Lynn, RC, 2003 Georgi’s Parasitology for Veterinarians, (Saunders Publishing Company, St. Louis, Missouri, 8 ed., 422)
5. Carassai, IJ, 2010, 241f. Modelagem do crescimento de azevém anual (Lolium multiflorum Lam.) submetido a diferentes níveis de nitrogênio, em função da radiação solar absorvida. (Tese Doutorado em Zootecnia - Universidade Federal do Rio Grande do Sul, Porto Alegre)