2.3. Sampling Technique and Sample Collection

Simple random sampling technique was used to determine the abundance of intestinal helminth of dog in Hawassa town. Fecal samples were collected from 384 dogs brought to Hawassa town veterinary clinic and dogs kept at home in the town. All samples were collected from four government veterinary clinics and home to home researching of domesticated dogs. Before sample collection, the researchers checked that the study populations were not dewormed to be included in the study population (informed by dogs' owners). The samples were collected directly from the rectum of the dogs and from top layers of fresh voided feces and kept into labeled disposable container and transported immediately to Hawassa University Veterinary Parasitology laboratory [16]. The history and sex of dogs were recorded during examination, and approximate age of dogs was estimated using criteria described by Pace and Wakeman [17]. Those dogs less than 1 year were classified as young (n = 166) and those over 1 year as adult (n = 218).