| survey of helminth infections in maine dairy cattle. | the survey was done to determine the incidence and seasonal prevalence of the gastrointestinal helminths infecting maine dairy cattle. approximately equal groups of calves, heifers, and cows from 13 dairy farms, managerially and geographically representative of dairying in the state, were sampled at regular 2-month intervals over the period of a year. on the basis of fecal egg counts and identification of cultured larvae, the following results were obtained: of the 94 adult cows, 78 heifers, and ... | 1975 | 127538 |