Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon

Ebene N. Jean; Onyali I.O.; Mingoas J.P.; Pougue H. Bayemi; Mfopit M.Y.; Katharina Hergenroether; Manchang T. K.; Nwosu C.O.

doi:10.5455/ajvs.222108

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Original Article

AJVS. 2016; 50(1): 78-86

doi: 10.5455/ajvs.222108

Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O..

Abstract
Aim: A survey to investigate the prevalence of anthelmintic resistance (AR) in gastrointestinal nematodes on cattle farms was conducted from October 2014 to May 2015 with the common brands of anthelmintics sold in rural veterinary drug shops in Adamawa Region using Faecal Egg Count Reduction Tests (FECRT).
Materials and methods: 172 animals, homogeneous regarding weight and age were retained. Animals with egg per gram( EPG)≥50 were randomly assigned to control and treatment groups. 10 to 20 animals where possible were randomly selected per farm. Animals in the treatment groups were either given subcutaneously: ivermectin1(1ml/50kg body weight), or ivermectin 2 ( 0.2 mg/kg bodyweight), or orally levamisole ( ½ Bolus /40kg equivalent 7.5mg/kg), albendazole ( 1 bolus/80 kg), oxfendazole or a combination of half orally levamisole () and half subcutaneously ivermectin1. Two FECRT methods (Coles(1992): arithmetic mean and Presidente(1985): geometric mean)were used. A reduction of the faecal egg count below 95% plus a lower confidence limit below 90% strongly indicates the presence of AR while the presence of only one of the two parameters suggests an onset of AR.
Results: FECRT results by Coles showed that responses with Ivermectin1 were 64, 81, and 81% in 3 different farms. Those with Ivermectin 2 were 85%, Albendazole 100%, Levamisole 72, 74, 88% in 3 different farms, oxfendazole 85% and ivermectinLevamisole combination 100%. Using the calculation of Presidente, all the % FECRT were above 90%, except for ivermectin1 79%. Cooperia spp was the predominant species on Day0 and Day14, followed by H. contortus in samples on 4 farms post-treatment.
Conclusion: Suspected AR was observed with all anthelmintics, except with albendazole and the combination levamisoleivermectin.

Key words: anthelmintic, Cameroon., cattle, resistance

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Pubmed Style

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O.. Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon. AJVS. 2016; 50(1): 78-86. doi:10.5455/ajvs.222108

Web Style

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O.. Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon. https://www.alexjvs.com/?mno=222108 [Access: December 03, 2023]. doi:10.5455/ajvs.222108

AMA (American Medical Association) Style

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O.. Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon. AJVS. 2016; 50(1): 78-86. doi:10.5455/ajvs.222108

Vancouver/ICMJE Style

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O.. Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon. AJVS. (2016), [cited December 03, 2023]; 50(1): 78-86. doi:10.5455/ajvs.222108

Harvard Style

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O. (2016) Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon. AJVS, 50 (1), 78-86. doi:10.5455/ajvs.222108

Turabian Style

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O.. 2016. Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon. Alexandria Journal of Veterinary Sciences, 50 (1), 78-86. doi:10.5455/ajvs.222108

Chicago Style

Ebene N. Jean, Onyali I.O., Mingoas J.P., Pougue H. Bayemi, Mfopit M.Y., Katharina Hergenroether, Manchang T. K., Nwosu C.O.. "Efficacy Testing of Anthelmintics against Field strains of Trichostrongyles in Cattle Farms of the Periurban Zone of Ngaoundere in Cameroon." Alexandria Journal of Veterinary Sciences 50 (2016), 78-86. doi:10.5455/ajvs.222108

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APA (American Psychological Association) Style

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About Alexandria Journal of Veterinary Sciences The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University ISSN: 1110 ... Read more. For best results, please use Internet Explorer or Google Chrome.	Contact Information Faculty of Veterinary Medicine, Alexandria University Edfina, Behaira, Egypt. PO.Box: 22758 Telefax: +20 45 2963526 email: ajvs@alexu.edu.eg