Studies on the ability of two isolates of Bacillus thuringiensis, an isolate of Clonostachys rosea f. rosea and a diatomaceous earth product to control gastrointestinal nematodes of sheep
作者： M.A. Ahmed , M.D. Laing , I.V. Nsahlai
DOI: 10.1080/09583157.2013.819835
关键词: Veterinary medicine 、 Biological pest control 、 Larva 、 Nematode 、 Anthelmintic 、 Bacillus thuringiensis 、 Microbiology 、 Biology 、 Clonostachys rosea f. rosea 、 Control methods 、 Gram
摘要: Abstract Nematode parasites have developed resistance to anthelmintics. Biological control of gastrointestinal nematodes (GIN) in sheep is a promising non-chemical method. Two experiments were done using Merino sheep. In each experiment, gender, initial egg count per gram (EPG) and body weight (BW) aided placing animals into four groups, which was randomly fed with one treatments. Experiment 1 evaluated anthelmintic effects Bacillus thuringiensis Berliner (Bt), Clonostachys rosea f. Schroers (C. rosea) diatomaceous earth (DE) C. at rate g kg−1 BW, DE 2% diet. Relative the control, treatments had no effect (P>0.05) on EPG, but reduced (P<0.001) larvae (LPG) faecal culture. Efficacy varied time (P<0.001). On Day 7, Bt, efficacies 76, 87 61%, respectively. experiment 2, efficacy feeding BW chlamydo...
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