1.
Taxonomy And Prevalence Of Intestinal Parasites Of Sparrows (Passer Domesticus)
by Anjum Mahmood | Dr.Kamran Ashraf | Dr.Muhammad Sarwar Khan | Dr.Nisar Ahmad | Faculty of Veterinary Sciences.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2000Dissertation note: The study was undertaken to assess the prevalence and taxonomy of the gastro-intestinal tract helminths in 200 sparrows that were naturally parasitized. In addition, the blood examination was carried out to record the effect of worm infestation on different blood parameters namely Haemoglobin (Hb) estimation, Total leukocyte count (TLC), Packed cell volume (PCV) and Differential leukocyte count (DLC) and these values were compared with the normal values.
Two hundred sparrows purchased from the market were kept in cages in Parasitology Section, College of Veterinary Sciences, Lahore. The birds were slaughtered at due intervals. Blood was collected and gastro-intestinal tract was searched for the collection and identification of the helminthic species.
The results revealed that out of 200 sparrows, 120 had the worm infestation, showing an overall incidence as 60%. The worms collected were subjected to the taxonomical study which was carried out in the laboratory of PaLrasitology Section.
Two species namely Ascaridia galli (36%) and Heterakis gallinarum (24%) were found inhabiting the small intestine and caeca of the infested birds, respectively. No trematodes and cestodal species were recorded from the GIT of these experimental sparrows. Blood examination revealed slight increase in TLC and Heterophils, while basophils and monocytes were not affected. However, Hb levels, PCV and lymphocytes showed decrease resulting into anaemia and retarded growth of the affected birds versus non-infected ones.
The eggs per gram (EPG) ranged between 200-1000 in case of Ascaridia galli and 400-1000 in Heterakis gallinarum infestation in naturally parasitized sparrows. The main EPG count recorded was 516.666 and 660.41 in case of Ascardia galli and Heterakis gallinarum infestation, respectively.
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2.
Oocyst Production Potential In Experimentally Infected Broiler With Eimeria Tenella
by Khalid Younas, M | Dr.Kamran Ashraf | Dr.Haji Ahmad Hashmi | Dr.Muhammad | Faculty of Veterinary Sciences.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2001Dissertation note: The present study was designed to observe the periodicity of oocyst shedding, the ratio of administered oocysts with the oocysts found in the faeces or intestinal contents of infected birds and effect of artificially induced coccidiosis at different ages on weight gain, FCR, OPG count, mortality and lesion scores. For this purpose 84 day-old chicks were purchased from the market and vaccinated against NDV on day 1 and 21 (Mukteswar strain). The birds were divided into 4 groups i.e. A, B, C and D comprising oC 21 birds each. Group A was kept as non-infected control. Virulent Elmeria en at a dose rate of 50,000 sporulated oocysts/bird was given to group B, C and D on day 15, 25 and 35 of age, respectively.
There was no oocyst excretion in faeces of birds in group A. OPG of faeces in group B was higher than in groups C and 1). rFIe OPO of faeces reached the peak on 6th day post-infection in infected groups, but group D again obtained the peak on 17th day postinfection. The highest caecal oocyst counts were observed in group B than C and 1) groups. It was observed that the recovery of the number of oocysts in purified isolates was 58.74%, 50.05% and 26.87% in B, C and D, respectively as compared to OPG counts. It was also noted that the caecal output of oocyst counts was always lower than the total OPG counts per chick during the period of infection in different groups.
Group A showed the highest weight gain (2155 gms) than the infected groups B (1985 grns), C (1930 gms) and D (1978 grns). Feed conversion ratio in groups A, B, C and D was significantly different showing the values as 1.62, 2.26, 1.89 and 1.82, respectively. Group A being uninfected gave the best FCR followed by the birds in groups D and C. While birds in group B gave the poorest values, it was observed that the weight of faeces per chick was almost equal in groups C (163 gms) and D (166.5 gms), but was significantly lower in B (123.5 gms). However, the highest OPG counts occured in group B and the number of oocysts acquired were the best in this group.
The highest mortality was observed in group B (28%) followed by group D (14%) and group C (10%), while no mortality was recorded in group A.
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3.
Prevalence And Treatment Of Faciolosis In Buffaloes Under Farm Conditions
by Sarfraz Ahmed | Dr.H.A.Hashmi | Dr.Kamran Ashraf | Dr.Muhammad | Faculty of Veterinary Sciences.
Material type: ; Format:
print
Publisher: 2002Dissertation note: The present study was designed to investigate the prevalence of fasciolosis in buffaloes under farm conditions, efficacy of recently introduced Homeopathic (Trematox) with Allopathic (Zanil, ICI) drug and economic losses in terms of liver damage and decrease in milk production. For this purpose, 500 faecal samples were examined for the presence of liver fluke. The prevalence was observed 15% in buffaloes under farm conditions located in Okara district. For therapeutic purpose, sixty naturally infected and 20 healthy buffaloes were selected and divided into four equal groups i.e. A, B, C and D containing 20 animals each. Anirnals of group-A (healthy animals) were given no medication. Animals of group-B were infected control group. Animals of group-C were treated with Zanil (Oxyclozanide), while animals of group-D were treated with Trematox (A horneopathetic drug).
The therapeutic efficacy of Zanil and Trematox was compared on the basis of pre- and post-medication egg counts. The animals used for this study were naturally infected buffaloes (confirmed by faecal examination). Sixty positive and 20 negative cases were selected for tlie study. rfhe faecal samples were collected directly from the rectum of the animals.
Eggs per gram of faeces (EPG) and clinical performance were monitored. Faecal samples were examined at zero, 1st, 3rd, 5th, 7th, 10th and 18th day post-treatment. Animals which remained positive on 18th day were given a second dose of the respective drug on the same day and their faecal samples were further examined on 21st and 28th day.In buffaloes treated with Trematox the efflcacy recorded was 20.45% on 3rd day, 29.54% on 5th day, 40.90% on 7th day, 47.72% on 10th day, 50% on 14th day, 54.54% on 18th dày, 56.81% on 21st day and 61.36% on 28th day.
Buffaloes treated with Zanil showed better results than Trernatox. Decrease in the faecal egg counts was 39.13% on 3rd day, 56.52% on 5th clay, 69.56% on 7th day, 78.26% on 10th day, 82% on14th day, 86.95% on 18th day, 93.47% on 21st day and 95.65% on
28th day as compared to that of zero day.
The economic losses due to liver damage recorded were 21.6 million (Rs.) annually in 600 animals. Wheras economic loss in terms of decrease in milk production in infected animals was recorded as Rs.10,800 annually per animals
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4.
A Comparision Of Biological And Medicinal Contro Of Coccidiosis In Broilers Under Field Condition
by Mirza Waqar Baig | Dr.Kamran Ashraf | Dr.Muhammad | Prof. Dr.Haji Ahmad Hashmi | Faculty of Veterinary Sciences.
Material type: ; Format:
print
Publisher: 2003Dissertation note: The present study was designed to estimate the efficacy of different locally prepared anticoccidial vaccines against E. tenella infections i.e. irradiated non-sporulated vaccine and irradiated sporulated E. tenella vaccine, herbal anticoccidial (Coxigon) and cemical anlicoccidial (Suipha Diverdine). For estimation of the efficacy of the said anticoccidials, OPG counts, weight gain, FCR and mortality records were compared amongst the control and test groups.
A total of 150 day-old broilers were equally divided into six different groups on day 3 namely; A, B, C, D, E and F. Each group comprised of 25 chicks. ND vaccine was administered on day 1 and 21 of age to the chicks of all groups. rIhe test groups were infected through contamination of the bedding of the chicks by spraying sporulated oocysts between day 12 and 17 of the experinient. Group A acted as non-infected control, .13 as infected control, C was infected but vaccinated with irradiated non-sporulated E. tenella vaccine on day 3 and 10 @ 1000 oocysls per bird. Group D was infected and treated with Coxigon (herbal medicine), E was infected but treated with Coxidal (Sulpha diverdine). Similarly group F' was infected and vaccinated with irradiated but sporulated oocyst on day 3 and 10 @ 1000 oocysts per bird. To access the comparative efficucies of different groups mean OPG, mean weight gains and mean FCR of control and test groups were compared. The OPG counts were conducted on each 4th day from day 18th to 42. The results indicated that the first observation of OPG counts (day-18) showed heavy infection in all control (infected) and test groups. In group 13, 264523 oocysts were observed on day 18 which gradually reduced to 15773 on day 42. Group C (vaccinated with non sporulated, irradiated oocysts) showed 14214 OPG counts, which sharply declined on each observation and showed 89.00 QPG and day 38 followed by '0, by the end of the experiment, showing significaht difference from the control (1? <0.05). Group D (Coxigon) and groap E (Coxidar) showed gradual decline like infected control group and
735 OPG counts were observed in group E even on day 42. In group F the first observation showed 150428 OPG counts, which abruptly declined to 119 on day 38 followed by '0' on day 42. So group C and F' showed comparable and the best results as compared to groups D and E.
Weight gains were almost equal in all the test and control groups by day 14. The difference appeared on third observation (on day 21) between infected control and other groups. At the end of the experiment members of groups A, C, D, E and F gained 31%, 14%, 11.83%, 10.92% and 12% greater weights than group B. rphe FOR in ranked order was calculated in groups A, F, C, D, E and B, showing the cfCicacy of irradiated - sporulated vaccine. Mortalities occurred in groups B, C, D, E and F as 5, 2, 1, 4 and 1, respectively.
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5.
The Comparative Efficacy Of Various Feed Additives On The Resistance Of Broiler To Experimenmtally Induced Cecal Coccidiosis
by Atta Subhani | Dr.Kamran Ashraf | Dr.Muhammad Lateef | Prof.Dr.Muham | Faculty of Veterinary Sciences.
Material type: ; Format:
print
Publisher: 2009Dissertation note: Coccidiosis is the major parasitic disease of poultry and is caused by the apicomplexan parasites Eimeria. Drugs and live vaccines are the two main control measures of the disease; however, due to increasing concerns with prophylactic drug use and the high cost of vaccines, alternative control methods are needed. Recent evidence that various dietary and live microbial supplements can influence host immunity against enteric diseases prompted me to investigate the role of prebiotic, probiotic on coccidiosis in broiler chickens. Neem fruit (azadirachta indica) and diclazuril is also used in the experimental trial due to their anticoccidial activity. For this purpose a total of 300 day old chicks free from coccidial infection were randomly divided into six groups (A, B, C, D, E and F) each comprising 50 birds. The dietary treatments for groups A-F were basal diet only, basal diet + Diclazuril 0.5%, basal diet + lactobacillus based probiotic, basal diet + Mannan-oligosacchrides (MOS), basal diet + neem fruit (Azadirachta indica) and basal diet only, respectively. The birds in groups A-E were challenged oesophageally with 10000 viable sporulated E. tenella oocysts, while the birds in group F were remained unchallenged and serve as negative control. The oocyst per gram (OPG), clinical signs/severity of diarrhea, lesion score, body weight gain, feed consumption, FCR, mortality rates, hemoglobin estimation, total leukocyte count and differential leukocyte count were the parameters considered. The efficacy of various treatments was estimated on the basis of reduction in OPG, clinical signs/severity of diarrhea and lesion score. The effect of coccidiosis on hemoglobin, total leukocyte count and differential leukocyte count were also recorded. The data thus obtained were subjected to statistical analysis using Analysis of Variance (ANOVA) Technique. The difference among the treatment means were tested by Duncans's Multiple Range (DMR) Test.
The results of the experiment revealed that oocyst per gram (OPG), clinical signs/severity of diarrhea, lesion score, mortality rates, feed consumption, hemoglobin estimation, total leukocyte count and differential leukocyte count of group D and C were significantly lower than group A, B and E (p<O.O5) respectively except group F (-ye control), but feed consumption of group C and D is significantly lower than group F (p<O.05). Body weight gain, and FCR of group C and D were significantly higher than group F, followed by E, B and A (p<O.O5) respectively.
From the results of above experiment it is concluded that both prebiotic and probiotic not only facilitate as an anticoccidial but also helpful in body weight gain. These consequently result as an alternative drug free approach to antibiotics for the control of coccidiosis because of drug resistance as well as growth promoter and ultimately reduce the economic losses due to coccidiosis.
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