Seng Sokerya, Waller Peter J, Ledin Inger, Höglund Johan
Center for Livestock and Agricultural Development, CelAgrid UTA-Cambodia, P.O. Box 2423, Phnom Penh 3, Cambodia.
Trop Biomed. 2007 Jun;24(1):47-54.
The antiparasitic effect of cassava (Manihot esculenta Crantz) was tested in goats artificially infected with gastrointestinal parasitic nematodes. Each experimental group consisted of 6 pen-fed goats kept on a slatted floor. The treatments compared were: 1) controls fed grass only, 2) cassava replaced grass for 3 weeks from the commencement of larval dosing period, and 3) cassava replaced grass for 3 weeks after the worm infection was patent. A total of 2000 mixed-species infective nematode larvae (L3) were administered to each goat in four doses of 500 L3/day, commencing 5 weeks after removal of previously acquired infections with ivermectin. The faecal egg counts (FEC) reduced in both cassava fed groups during the time of feeding, compared to the controls. Although, FEC increased differently with time (P < 0.05), total adult worm burdens at slaughter (week 15) were not different between the treatment groups. No differences in live weight gain, or packed cell volume, between treatments were found. Whilst these results show limited evidence of an anthelmintic effect of cassava in the diet, they do suggest that feeding, or supplementation, of cassava over an extended period may prove beneficial.
在人工感染胃肠道寄生线虫的山羊身上测试了木薯（Manihot esculenta Crantz）的抗寄生虫效果。每个实验组由6只圈养在板条地面上的山羊组成。比较的处理方法有：1）仅喂草的对照组；2）从幼虫给药期开始，木薯替代草3周；3）在蠕虫感染显症后，木薯替代草3周。在使用伊维菌素清除先前感染5周后，给每只山羊分4次、每次500条L3，共2000条混合种感染性线虫幼虫（L3）。与对照组相比，在喂食木薯期间，两个喂食木薯的组的粪便虫卵计数（FEC）均降低。尽管FEC随时间变化不同（P < 0.05），但在屠宰时（第15周）各处理组之间的成虫总虫负荷没有差异。各处理组之间在体重增加或红细胞压积方面未发现差异。虽然这些结果显示木薯在日粮中的驱虫效果证据有限，但确实表明长期喂食或补充木薯可能是有益的。
