Nyangiwe N, Horak I G
Döhne Agricultural Development Institute, Private Bag X15, Stutterheim 4930, South Africa.
Onderstepoort J Vet Res. 2007 Mar;74(1):1-7. doi: 10.4102/ojvr.v74i1.133.
The objective of this study was to compare the presence on goats and cattle of adult ticks that usually infest cattle. To this end ticks collected from sets of five goats were compared with those collected from sets of five cattle at 72 communal dip-tanks in the eastern region of the Eastern Cape Province. Amblyomma hebraeum was present on goats at 25 and on cattle at 39 dip-tanks, and a total of 61 goats and 138 cattle were infested. Adult Rhipicephalus (Boophilus) microplus was present on goats at 48 and on cattle at 69 dip-tanks, and a total of 113 goats and 242 cattle were infested. The lengths of 84 of 148 female R. (Boophilus) microplus collected from the goats exceeded 5 mm or more, indicating that they could successfully engorge on these animals. The differences between the proportions of dip-tanks at which A. hebraeum or R. (Boophilus) microplus was present on goats and cattle and also between the proportions of goats and cattle that were infested were significant (Chi-square test, P < 0.01). Adult Rhipicephalus appendiculatus was present on goats at 70 and on cattle at 67 dip-tanks, and a total of 296 goats and 271 cattle were infested. The proportion of dip-tanks at which cattle were infested did not differ significantly from the proportion of tanks at which goats were infested (Fischer's exact probability test, P = 0.44), but the proportion of infested cattle was significantly lower than the proportion of infested goats (Chi-square test, P < 0.05). Adult Rhipicephalus evertsi evertsi was present on goats and cattle at all 72 sampling localities, and a total of 334 goats and 316 cattle were infested. The proportion of infested cattle was significantly lower than the proportion of infested goats (Chi-square test, P < 0.05). These results underscore the necessity of including goats in any tick control programme designed for cattle at the same locality.
本研究的目的是比较通常寄生于牛的成年蜱虫在山羊和牛身上的存在情况。为此，在东开普省东部地区的72个公共浸洗池，将从每组5只山羊身上采集的蜱虫与从每组5头牛身上采集的蜱虫进行比较。在25个浸洗池的山羊身上发现了希伯来花蜱，在39个浸洗池的牛身上发现了该蜱虫，共有61只山羊和138头牛受到感染。微小牛蜱成虫在48个浸洗池的山羊身上出现，在69个浸洗池的牛身上出现，共有113只山羊和242头牛受到感染。从山羊身上采集的148只微小牛蜱雌性中，有84只的长度超过5毫米或更长，这表明它们能够在这些动物身上成功饱血。希伯来花蜱或微小牛蜱在山羊和牛身上出现的浸洗池比例之间，以及受感染的山羊和牛的比例之间的差异均具有显著性（卡方检验，P < 0.01）。边缘革蜱成虫在70个浸洗池的山羊身上出现，在67个浸洗池的牛身上出现，共有296只山羊和271头牛受到感染。牛受感染的浸洗池比例与山羊受感染的浸洗池比例之间无显著差异（费舍尔精确概率检验，P = 0.44），但受感染牛的比例显著低于受感染山羊的比例（卡方检验，P < 0.05）。在所有72个采样地点的山羊和牛身上均发现了埃氏扇头蜱成虫，共有334只山羊和316头牛受到感染。受感染牛的比例显著低于受感染山羊的比例（卡方检验，P < 0.05）。这些结果强调了在为同一地区的牛设计的任何蜱虫控制计划中纳入山羊的必要性。
