Twenty Trichomonas-free ringed turtle doves (Streptopelia risoria) were inoculated per os with the highly virulent Jones' Barn strain of Trichomonas gallinae. None became infected. Three F1 females housed together were similarly inoculated with this strain and remained Trichomonas-positive for upwards of 182 days. They showed no disease and eventually lost their infections. These three positive females “mated” and laid several six-egg sets in a communal nest. At successive nestings they were given: 1) a fertile domestic pigeon (Columba livia) egg, and 2) two fertile ringed dove eggs, all of which hatched. The pigeon squab died of trichomoniasis on day four; the doves survived to maturity. When trichomonads from these doves were placed in Trichomonas-free domestic pigeons the latter all died of T. gallinae trichomoniasis on postinoculation day 8.1 (average).
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