Author : Ali, Mansour J.


Molecular differentiation of Thysaniezia (Helictometra) giardi and Moniezia species based on 18s rRNA gene in small ruminants

Monyer Aز Alfatlawi; Yahia Kh. Ismail; Mansour J. Ali; Azhar C. Karawan; Israa N. Ibadi

Iraqi Journal of Veterinary Sciences, In Press
DOI: 10.33899/ijvs.2020.126407.1313

This study was conducted to investigate Anoplocephalidia Cestoda in sheep and goat and evaluate the 18s rRNA to genetically differentiate the genera of this family. Sixty sample tapeworms were collected from small intestines of 30 sheep and 30 goats from different slaughterhouses in Al-Najaf and Al-Qadisiyah provinces, during September, 2016 to February, 2017. Based on polymerase chain reaction (PCR) and 18s rRNA gene partial sequencing (18sGPS) methods used, tapeworm infection of sheep and goat’s intestines was 32.9% and 31.4%, respectively. The partial gene sequencing of the 18S rRNA gene showed two closely related isolates of M. benedeni which are aligned distinctly to an NCBI isolate of the same species from China. For T. giardia, the outcomes of the phylogenetic analysis unveiled three distinct local isolates which were similar to an NCBI database isolate from China. The current data ensure the importance of the molecular techniques in differentiating between Thysaniezia (Helictometra) giardi and Moniezia species that were identified for their presence in the small intestines of sheep and goats.

Synergizing the deltamethrin larvicidal activity against Aedes albopictus larvae using cinnamaldehyde in Diwaniyah, Iraq

Mansour J. Ali; Azhar C. Karawan; Dhafer R. Al-Fetly; Monyer A. Alfatlawi

Iraqi Journal of Veterinary Sciences, 2020, Volume 34, Issue 2, Pages 317-320
DOI: 10.33899/ijvs.2019.126026.1212

The current work on mosquito larvae was performed to evaluate the resistance status of larvae to deltamethrin (DM) and to detect if the larvicidal activity (LA) of this chemical could be synergized after exposing the larvae to cinnamaldehyde (CD). Here, 200 Aedes albopictus larvae were employed for the experiment and were divided randomly into 2 groups (100/each group and placed in petri-dishes (PD), 10 larvae/PD), and they are the DM group (1ml of 0.04 mg/l in 99ml of distilled water (DW) was placed to each PD) and the DM+CD group (1ml of 0.04 mg/l and 1ml of 0.9mg/l respectively were placed with 98ml DW in each PD). The experiment was lasted for 24hrs. Larvae were detected to have resistance against DM as 45% to 60% of the larvae were killed by the DM, 40% to 55% resistance rate. However, when evaluating DM activity with the use of CD, the LA was synergized showing mortality in 87% to 92% of the larvae in which a significant increase in the mortality in DM+CD group was noticed more than that in the DM group. Furthermore, RT-qPCR was run to identify the expression status of the P540 monooxygenase gene, Cyp6p15, and found that the gene expression was significantly inhibited in the DM+CD group when comparing that in the DM group that showed overexpression of this gene. This work results provide viable information about the potential activity of the cinnamaldehyde in synergizing the larvicidal activity of deltamethrin.