Gizzard helminths were examined in 100 (50 adult, 50 juvenile) female northern pintails (Anas acuta). Sixty-three individual helminths, representing 5 species (Amidostomum acutum, Echinuria uncinata, Epomidiostomum uncinatum, Streptocara crassicauda, and Gastrotaenia cygni) were found. Twenty-seven northern pintails were infected with 1–3 helminth species and averaged 1.4 species. Overall, A. acutum and G. cygni were the most prevalent and abundant species (20%, n = 31 and 10%, n = 25, respectively), followed by S. crassicauda (5%, n = 5), E. uncinata (1%, n = 1), and E. uncinatum (1%, n = 1). Intensity of infection for A. acutum, E. uncinata, E. uncinatum, S. crassicauda, and G. cygni was 1.6 ± 0.3 [SE], 1.0 ± 0, 1.0 ± 0, 1.0 ± 0, and 2.5 ± 0.6, respectively. Our findings represent new information about gizzard helminth infections in northern pintails wintering along the Texas coast.
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1 June 2018
Gizzard Helminths in Female Northern Pintails (Anas acuta) Wintering Along the Texas Coast
D. C. Ballard,
M. J. Garrick,
B. M. Ballard,
A. M. Fedynich
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Journal of Parasitology
Vol. 104 • No. 3
June 2018
Vol. 104 • No. 3
June 2018