Vol. 8, Issue 3, Part D (2023)

Author(s): Clebio Batista Toledo Júnior, Mateus Coelho DE Jesus, Luis Fernando Borges Couto, Regiane Cristina do Nascimento Miranda, Ana Maria Alves Santos, Leandro Lourenço Silva, Antonio Henrique de Sousa Pinto, Rafael Martins Custodio Mendonça, Mariane Santos Nogueira, Roberto Barbuio and Edvande Xavier dos Santos Filho

Abstract: Anaplasmosis caused by the intraerythrocytic rickettsia Anaplasma marginale is scattered in cattle from tropical and subtropical areas in several regions of the world. Forty dairy cows, twenty clinically healthy (constituting the control group), and the other twenty with clinical signs suggestive of Anaplasmosis (infected group) were evaluated regarding to biochemical and hematological aspects in the mesoregion of central Goiás, state of Goiás, Brazil. Infected animals manifested parasitemia from 12% on, with severe anemia and development of clinical signs such as marked apathy and prostration, tachycardia and tachypnea, jaundice and fever. Significant statistical differences (p<0.05) were detected by decrease in the total number of red blood cells, hemoglobin and hematocrit; and increase in the mean corpuscular volume, monocytes and total protein. It is concluded that Anaplasma marginale from the region has the virulence to reproduce severe clinical conditions of Anaplasmosis for milch cows.

DOI: 10.22271/veterinary.2023.v8.i3d.551