All local boards of health shall assist the department in the prevention, suppression, control, and eradication of contagious and infectious diseases among animals, whenever requested to do so. [C24, 27, 31, 35, 39, § 2659; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §163.17 ] Local boards of health, chapter 137