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  1. Seroepizootiological investigation on Goat Warble Fly Infestation (Przhevalskiana silenus) in Pothwar Plateau, Pakistan
    Liaquat S, Qayyum M, Ahmed H, Arfeen RZU, Celik F, Simsek S
    Trop Biomed, 2021 Jun 01;38(2):1-8.
    PMID: 33973567 DOI: 10.47665/tb.38.2.031
    Goat Warble Fly Infestation (GWFI) is also known as subcutaneous myiasis caused by Przhevalskiana silenus (Diptera: Oestridae). It is widely distributed in tropical and sub-tropical areas of the world. In goats, WFI is usually detected through conventional procedure which underestimated the infestation. The current study was designed to determine the serodiagonsis of GWFI (through IDEXX Hypodermosis serum antibody test) and also aimed to investigate its seroepizootiological profile in Pothwar region, Pakistan from 2013-14. The results showed that average seropositivity (ELISA kit) of GWFI was 18.5% whereas, it was 11% by using conventional procedure (Palpation method) depicting a significant difference (p<0.05). Higher seropositivity (30.8%) was observed in Jhelum district as compared to e Attock district (6%). The L1 larvae were found in September, while nodules start appearing in October to December and last until the end of February. The month wise peaks of optical density (OD) was higher in December which gradually decrease along with the end of winter season. The prevalence of GWFI revealed no significant difference among three host breeds (Jattal, Beetal and Tedy). According to the results, high infestation rate (28%) was observed in young animals of age group < 1 year as compared to old animals (> 2 years). Topographically, hilly areas (33%) provide favourable climatic conditions for the propagating of larval stages. Sex difference showed no significant difference. The seroprevalence varied significantly with respect to age, month, districts and topographical location. The current study proved that serologic diagnosis (commercial ELISA kit) as more sensitive and accurate for timely diagnosis of GWFI than traditional method. The information on the epizootiology of P. silenus in goats of Pothwar region would help in devising effective control strategies.
  2. Fulltext Physical abrasion method using submerged spike balls to remove algal biofilm from photobioreactors
    Nawar A, Khoja AH, Akbar N, Ansari AA, Qayyum M, Ali E
    BMC Res Notes, 2017 Dec 02;10(1):666.
    PMID: 29197425 DOI: 10.1186/s13104-017-2995-9
    OBJECTIVE: A major factor in practical application of photobioreactors (PBR) is the adhesion of algal cells onto their inner walls. Optimized algal growth requires an adequate sunlight for the photosynthesis and cell growth. Limitation in light exposure adversely affects the algal biomass yield. The removal of the biofilm from PBR is a challenging and expansive task. This study was designed to develop an inexpensive technique to prevent adhesion of algal biofilm on tubular PBR to ensure high efficiency of light utilization. Rubber balls with surface projections were introduced into the reactor, to remove the adherent biofilm by physical abrasion technique.

    RESULTS: The floatation of spike balls created a turbulent flow, thereby inhibiting further biofilm formation. The parameters such as, specific growth rate and doubling time of the algae before introducing the balls were 0.451 day-1 and 1.5 days respectively. Visible biofilm impeding light transmission was formed by 15-20 days. The removal of the biofilm commenced immediately after the introduction of the spike balls with visibly reduced deposits in 3 days. This was also validated by enhance cell count (6.95 × 106 cells mL-1) in the medium. The employment of spike balls in PBR is an environmental friendly and economical method for the removal of biofilm.

  3. The application of One Health concept to an outdoor problem-based learning activity for veterinary students
    Putra TA, Hezmee MN, Farhana NB, Hassim HA, Intan-Shameha AR, Lokman IH, et al.
    Vet World, 2016 Sep;9(9):955-959.
    PMID: 27733795
    The One Health (OH) approach, which seeks to bring together human and animal health, is particularly suited to the effective management of zoonotic diseases across both sectors. To overcome professional silos, OH needs to be taught at the undergraduate level. Here, we describe a problem-based learning activity using the OH approach that was conducted outdoors for 3(rd)-year veterinary students in Malaysia.
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