Barnard D R
Insects Affecting Man and Animals Research Laboratory, U.S. Department of Agriculture, Gainesville, FL 32604.
Exp Appl Acarol. 1990 Dec;10(2):105-9. doi: 10.1007/BF01194086.
Female Amblyomma americanum [L.] that feed on Bos taurus cattle weigh significantly (P = 0.05) more (mean = 505.4 mg) than females that feed on B. indicus x B. taurus cattle (mean = 450.7 mg) but not females that feed on B. indicus cattle (mean = 489.7 mg). Females that feed on B. taurus cattle lay more eggs (mean = 3492) and produce more larvae (mean = 3243) than females that feed on B. indicus cattle (mean = 3103 eggs; 2925 larvae) or B. indicus x B. taurus cattle (mean = 2961 eggs; 2759 larvae). The number of eggs produced per unit engorged female weight is not significantly different in ticks that feed on B. taurus and B. indicus x B. taurus cattle.
以黄牛为食的美洲钝缘蜱雌蜱（平均体重 = 505.4毫克）比以印度瘤牛×黄牛为食的雌蜱（平均体重 = 450.7毫克）显著更重（P = 0.05），但与以印度瘤牛为食的雌蜱（平均体重 = 489.7毫克）体重无差异。以黄牛为食的雌蜱比以印度瘤牛（平均产3103枚卵；2925只幼虫）或印度瘤牛×黄牛为食的雌蜱（平均产2961枚卵；2759只幼虫）产下更多的卵（平均 = 3492枚）并产出更多的幼虫（平均 = 3243只）。以黄牛和印度瘤牛×黄牛为食的蜱虫每单位饱血雌蜱体重所产的卵数无显著差异。
