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1. Microbial Evaluation Of Raw Meat At Abattoirs And Retail Outlests (Lahore)

by Abid Sarwar | Prof. Dr. Mansur ud Din Ahmad | Dr. Imran Najeeb | Prof. Dr. Azhar.

Material type: book Book; Format: print Publisher: 2010Dissertation note: The objective of this study was to evaluate the microbial quality of meat. The present study was planed to determine the aerobic plate count on meat obtained from the abattoirs and local market. A total of 90 meat samples that were collected for determining the microbiological quality of meat. Half of the meat samples (n=45) were collected from various abattoirs and half of the meat samples (n=45) were collected from retail outlets in Lahore City to get an idea of contamination from slaughtering point to retail outlets. These samples were processed for Aerobic plate counts, E.coli, S.aureus and Salmonella counts. Overall, this study revealed that the level of contamination on meat carcasses was higher in retail meat shops compared to the abattoir. However, the microbial contamination in the abattoir were high if we compare these results to the reports from developing countries like India, Iran and Bangladesh. Bacterial isolates identified and counted from this study were Staphylococcus aureus (44) out of 90 samples was the most abundant as 48.88%, followed by E. coli (43) 47.77% and Salmonella (26) 28.88%. Statistical analysis revealed that analysis of variance between various abattoir and the retail meat shops for E.coli, Salmonella and S.aureus showed significant differences with some exceptions. E.coli counts were significantly higher (P < 0.05) in the meat shops and abattoirs. For E.coli most of the data were significant at 5% level (P < 0.05) with some exception in case of beef and goat samples taken from abattoirs which were non significant because of the unhygienic environments. Analysis of variance for Salmonella between various abattoir and the retail outlets were significant at 5% level (P < 0.05). For S.aureus between various abattoir and the retail outlets showed non significant at 5% level (P > 0.05) with some exceptions in case of beef abattoir and goat retail outlet samples taken which were significant at 5% level (P < 0.05). The higher incidence of microbial load in fresh meat obtained in this study might be attributed to unhygienic and improper handling of animals during slaughter, dressing, evisceration, transportation and unhygienic environments at the retail shops. The usual practice of washing the carcass with the same water in which intestines and offal had been washed was considered as one of the predominant reasons for increased microbial counts of the carcasses. A complete ignorance on the part of the meat handlers/ butchers in hygienic handling of carcasses during slaughter and retailing processes might be the main factors for producing meat with high microbial load. Levels of microbial contamination in Pakistani abattoirs and traditional retail meat shops reflect the hygiene status of meat production in the developing world. Education of the meat retailers' community which runs the traditional meat shops, in terms of the importance of hygienic and sanitary precautions would go a long way towards providing wholesome and safe meat to the consumers. Availability: Items available for loan: UVAS Library [Call number: 1196,T] (1).

2. Immunobiological And Molecular Characterization Of Pasteurella Multocida From Buffaloes

by Muhammad Kamran | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Aftab Ahmad Anjum | Prof. Dr. Azhar.

Material type: book Book; Format: print ; Literary form: drama Publisher: 2012Dissertation note: Hemorrhagic septicemia is an acute bacterial disease of buffaloes and cattle caused by Pasteurella multocida. In the present study, 400 samples (200 from carriers and 200 from sick animals) from Sargodha division were collected. Among four districts of the division, 15 samples were positive by API Kit, 13 by conventional biochemical tests and eleven were found positive for P. multocida through serological and molecular characterization. Biochemical profile index obtained with API kits had lesser accuracy than conventional and serological profiles for the identification of P. multocida. Passive mouse protection test and AGPT were used for serological confirmation. Different molecular techniques like SDS-PAGE, PCR and RFLP were used to investigate variation at the molecular level in field and vaccinal strains. There were no significant variation between field isolates and vaccinal strain in sick animals and carriers, or in isolates of different districts. Five major and three minor polypeptide bands were observed by SDS-PAGE. Genetic relatedness among the isolates was assessed by cluster analysis using Fingerprint Analysis of Missing Data (FAMD) of 12 isolates. The12 isolates clustered into 5 groups namely I, II, III, IV and V. Group I and II consisted of only one isolate in each (8.33%) of the total designated BKC-01 (S5) and KBO-01 (S1), respectively. Group III composed of 2 isolates (16.67%) namely KBC-02 (S4) and MNO-01 (S2). Group IV had the highest numbers of isolates (50%) designated as KBC-02 (S3), MNO-01 (S6), BKO-02 (S7), MNC-02 (S8), SGO-02 (S9) and V. Only two isolates were typed in group V (16.67%) named as SGO-01 (S10) and BKO-01 (S11). The size of amplified gene was 460 bp. HindIII I endonuclease cleaved bacterial genome at four sites as compared to other four enzymes (DNase1, PstlI, EcorI and BamHI) change the writing of these enzymes which cleaved at two sites. The isolates were also subjected to ten routinely used antibiotics for sensitivity testing and found enrofloxacin as drug of choice with 90.91% sensitivity, followed by gentamycine, chloramphenicol, ciprofloxacine and norfloxacine (72.73%), ampicillin and amoxycillin (45.45%), amikacin (36.36%) and lowest to sulfadiazine and erythromycine (18.18%). Availability: Items available for loan: UVAS Library [Call number: 1767,T] (1).

3. Biological Studies on Various Avian Influenza Virus Types In Poultry

by Tariq Mahmood Shaukat (2003-VA-189) | Prof. Dr. Akram Muneer | Prof. Dr. Mansur-ud-Din Ahmad | Prof. Dr. Azhar Maqbool.

Material type: book Book; Literary form: not fiction Publisher: 2011Dissertation note: Theses submitted with blank cd. Availability: Items available for loan: UVAS Library [Call number: 2390-T] (1).

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