1.
Isolation, Characterization And Pathogenesis Of Capripox Virus
by Abdul Sajid | Prof. Dr. Zafar Iqbal Chaudhry | Dr. Aftab | Prof. Dr. Azhar Maqbool.
Material type: ; Format:
print
; Nature of contents: ; Literary form: Publisher: 2010Dissertation note: Goat pox is the most important pox diseases of livestock and it usually
causes huge economic losses. The economic losses occur in terms of mortality,
reduced productivity and lower quality of wool and leather. The clinical
manifestations of the disease include high temperature, lesions skin in the form of
macules, papules, vesicles, pustule and scabs on hairless areas of the body. The
disease is highly contagious having high morbidity and mortality in the infected
herds. The present study was conducted to document the prevalence of goat pox
disease in the different regions of Punjab. The study was based on clinical
manifestation of the disease in various collecting spots including slaughter houses,
cattle and hide markets and tanneries. The prevalence of goat pox at slaughter
houses in different regions was 9.93% in arid region followed by 8.69% and 7% in
southern and northern irrigated regions respectively. The prevalence of pox disease
in sheep was highest (8.54%) in the northern irrigated region, 7.69% and 6.62% in
arid and southern irrigated regions respectively.
The prevalence of pox recorded in the hide markets shows a trend of high
presence 7.29% in arid region followed by 6.22% and 3.84% in southern and
northern irrigated regions. Whereas in sheep the overall prevalence was 0.51 %,
4.44% and 1.66% in northern irrigated, arid and southern irrigated regions.
In tanneries the pox lesions were identified on the basis of method as
adopted in hide markets. The overall prevalence of pox in goat was 3.96%, 4.06%
and 4.09% while in sheep 9.58%, 2.41 % and 10% in northern irrigated, arid and
southern irrigated regions.
The overall prevalence of pox disease in goat was 5%, 5.79% and 5.34% in
Northern irrigated, arid and southern irrigated regions respectively. Where as in
sheep, pox was 3.133%, 4.11 % and 2.67% in Northern irrigated, arid and southern
irrigated regions respectively. The highest trend of incidence of disease was present
in the arid regions followed by southern and northern regions. The slaughter houses
shows high incidence of disease as compared to cattle and hide market and
tanneries. The result was significant (P<0.05) among the regions and samples
collecting spots.
A total of 100 samples consisting of 55 scabs and 45 skin tissues were
randomly selected from the different collecting spots of the three regions. The scabs
and skin tissue samples were processed on dehydrated minimum essential media
tor virus isolation. The virus was isolated on Vero cell line culture and its
characteristics were observed on the basis of specific cytopathic effects. All 55 scab
samples consisting 20 from cattle markets, 20 from slaughter house and 15 from
hide market and tannery were tested through cell culture. The cell culture positive
result for scabs was 60% cattle markets, 20% hide market and tannery and 40%
slaughter house.
All 45 skin tissue samples including 5 from cattle markets and tannery, 20
from hide market and 20 from slaughter house were subjected to virus isolation on
Vero cell line. The cell culture positive result for skin tissue samples was 100% cattle
markets, 30% hide market and tannery and 60% slaughter house. In this way the
total cell culture result for scabs and skin tissue samples from all areas become
41.82% and 51.11 % respectively.
The isolated virus was confirmed through peR. All the collected samples
were also analyzed through peR in order to compare the two techniques for disease
diagnosis. Out of 40 samples from slaughter houses 18 scabs and 15 tissues
sample were positive through peR with 82.5%. Out of 25 samples collected from
cattle markets consisting of 20 scabs and 5 skin tissues, 17 of scabs and 5 skin
tissues were positive with 92%.
Similarly a total of 35 samples out of which 15 were scabs and 20 were skin
tissues collected from hide markets and tanneries. The peR of 7 scabs and 14 skin
tissues was positive with 60%. In this way the total peR result for scabs and skin
tissue from all areas was 42% and 34% respectively.
In the 3rd study of the present project the isolated virus was inoculated in to
experimental animal to study the detail pathogenesis. The disease followed the
same pattern as in the natural outbreak. But however the routes of inoculation affect
the severity of the disease. During the study the diseased animals were periodically
slaughter at weekly interval after the appearance of 1 st clinical signs. The detailed
lesions were observed in different visceral organs and the tissues were collected
and preserved in 10% formalin. The tissues were processed for histopathology and
immunohistochemical examination. The IHC was successfully optimized for the
detection of viral antigen in the tissues of skin, lung and lymph nodes.
Availability: Items available for loan: UVAS Library [Call number: 1372,T] (1).
2.
Epidemological, Serological, Heamatological And Therapeutic Studies On Ovine Nematodiasis In Three Ecological Zones of Balochistan
by Abdul Razzaq | Prof. Dr. Kamran Ahraf | Prof. Dr | Prof. Dr. Azhar Maqbool.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2012Dissertation note: The main area of research in this study was to assess the prevalence, hematological and serological aspects of ovine nematodiasis. Four main experiments were conducted to highlight the objectives of the present research study.
First experiment was conducted to find out the prevalence of sheep major nematodes for one year (January-December 2011). For this purpose three sheep breeds i.e., Balochi, Babrik and Harnai (either sex and between 1-5 years age groups)were selected randomly from three sites i.e., Quetta, Ziarat and Loralai. Faecal analyses of these sheep showed overall higher (40.25%) nematodes prevalence at Loralai followed by Ziarat (29%) and Quetta (23.92%). Five nematodes infection were recorded at three experimental sites. Among these, H. contortus (5.58 to 10.42%)and was the higher prevalent followed by N. battus (6.92 to 9.33%), S. papillosus (4.42 to 9%), T. colubriformis (2.33 to 7.33%) and T. ovis (1.83 to 6.83%).The nematodes prevalence was higher in one and five years old sheep. The female-sheep were infected with higher nematode prevalence higher the than male once and sometimes non-significant difference. These five nematodes were prevalent almost throughout the year; however, a peak infection was recorded during August/September. The high temperature, rainfall and humidity during these months may be predisposing factor of higher prevalence.
Second experiment was on diagnosis of sheep nematodiasis through Enzyme-linked immunosorbent assay (ELISA). For this purpose H. contortus and T. ovis positive samples (200) based on coprological examination were also indicated 100% positive sensitivity by the ELISA based on crude somatic antigen, while on excretory antigen based showed lower (92%) sensitivity. The sera (n=200) of non-infected sheep (based on coprological examination) showed marked difference results. Such as 168 (84%) and 166 (83%) samples were found positive with H. contortus and T. ovis, respectively. While, based on crude somatic antigen 158 (79%) and 144 (72%) samples were found positive with H. contortus and T. ovis, respectively.
Third experiment was conducted to determine the hematological values and total serum protein indices in healthy and nematodes infected sheep. The statistically significant (P<0.05) difference in PCV, Hb, RBC, WBC, Eosinophil, ESR and Total serum protein values was observed among healthy and nematode infected sheep groups. While, there was no statistically significant (P<0.05) difference in TLC, Lymphocytes, Neutrophil, Monocytes and Basophils counts in healthy and nematodes infected sheep groups.
Fourth experiment was conducted on assessing the comparative efficacy of synthetic (Oxfendazole and Ivermectin) and locally manufactured herbal medicine (Deedani, Kirmar and Atreefal Deedan) anthelmintics against sheep nematodes at AZRC/PARC Range-livestock Research Station Sanjavi district Ziarat. The present study results regarding the comparative efficacy showed that, Atreefal deedan among herbal products (Deedani and Kirmar) and Ivermectin than Oxfendazole was found effective against sheep nematodes. The sheep treated with Ivermectin showed highest (96%) FEC reduction, followed by Oxfendazole/Atreefal deedan (86%), Kirmar (60%) and Deedani (32%).
Availability: Items available for loan: UVAS Library [Call number: 1613,T] (1).
3.
Serodiagnosis, Epidemiology And Economic Improtance Of Hypodermosis In Goats In Balochistan
by Saadullah Jan | Dr. Mohammad Lateef | Prof. Dr | Prof. Dr. Azhar Maqbool.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2013Dissertation note: Hypodermosis is an endemic infestation of cattle and goats in Pakistan. It is caused by H. lineatum and H. bovis in cattle and P. silenus in goats and is commonly existed species in Pakistan which belong to order Diptera, family Oestridae. The larvae of these flies are obligatory parasites of their hosts and are economically very important causing severe damage to the skins/hides effecting leather industry. Goat warble fly infestation has severe economic impact on tanning industries and it also causes growth retardation, carcass depreciation and production losses of milk and meat. Keeping in view the importance of this infestation, studies were designed on serodiagnosis, epidemiology and economic importance of hypodermosis in goats in northern uplands of Balochistan, Pakistan, with the objectives to diagnose warble fly infestation at early stages through serology for better control and eradication strategies, to study different epidemiological factors (age, sex, breed, temperature, humidity and rain fall) contributing goat warble fly infestation in the study areas, to compare seroprevalance over the prevalence based on clinical examination and to study the economic importance of hypodermosis in Loralai, Ziarat and Pishin districts of Balochistan, Pakistan. The duration of the study was one year commenced from April 2011 to March 2012. The most prevalent breed of goat i.e. khurasani breed in uplands of Balochistan was involved in the study which was compared with the Non-descriptive breed of goats. It is expected that the result of this study will be helpful to plan better control and eradication measures of warble fly by providing the base line data for further improvement in livestock sector in Balochistan.
Serological studies for an early diagnosis and seroprevalence of hypodermosis were carried out by commercial ELISA kit (IDEXX hypodermosis serum antibody test) method. A total of 1440 blood samples were collected during the study. Sera were separated and stored at - 20 °C until further use. The infestation was detected in May and June (summer) where as the infestation is usually detected clinically in the months of October until February (winter) when warbles appear on the back and flank regions of the animals. ELISA based seroprevalence showed the highest mean percentage (48.45 %) of goat warble fly infestation in all the three districts, while the mean percentage by clinical palpation method was 15.94 % in all the three districts. In the slaughter house and skin market studies the mean percentages of goat hypodermosis were 9.07 % and 7.16 %, respectively.
In the study of epidemiology, a total of 8640 number (2880 number per district) of goats of different age, sex and breed were examined on monthly bases by hand palpation clinico-parasitological method for the presence and prevalence of hypoderma infestation in the field animals. The mean prevalence percentage was 15.94 % i.e. 10%, 21.25% and 16.59% in Loralai, Ziarat and Pishin districts, respectively. In the study conducted in slaughter houses of all the three districts, a total of 4320 number (1440 number per district, 120 animals per month per district) of goats of different age, sex and breed were examined and the prevalence was recorded. Three age groups were selected for both the studies i.e. < 1year, 1-2 year and > 2 year old. The larvae were collected from naturally infested animals for identification. The mean prevalence percentage of hypodermosis in the slaughtered animals was 9.07 % i.e. 4.86%, 12.56% and 9.79% in Loralai, Ziarat and Pishin districts, respectively. Analysis of data by Pearson Chi-square test (?2) revealed highly significant difference (P<0.05) in the overall prevalence of hypodermosis district-wise in the fields and slaughter houses. Results were processed using Microsoft Excel 2007. In comparison of the fields and slaughter houses, the prevalence was significantly higher in the field animals as compared with the slaughterhouse animals in all the districts. In the study based on examination of the infested skin in the skin markets, a total of 3600 numbers of skins of goats (1200 numbers per district, 100 skins per month regardless of age, sex and breed) were examined by making monthly visits to the skin markets of each district. The intensity of the infection was also recorded by counting the number of holes in each infected skin. The overall district-wise mean prevalence percentage was 7.16 % and the mean intensity was 16.19 holes per skin. Analysis of data of the skin market by Pearson Chi-square test, using SPSS version 16, revealed highly significant differences (P< 0.05) in the prevalence of hypodermosis district-wise.
Month-wise prevalence in the field animals showed that the highest prevalence was during January and lowest during October in Loralai, Ziarat and Pishin districts. In the slaughter house study, highest prevalence was observed during October and the lowest during July in Loralai district, highest during January and the lowest during July in Ziarat district whereas the highest prevalence was during the month of November and the lowest during July in district Pishin. Month-wise analysis of data by Pearson Chi-square test, using SPSS version 16, revealed highly significant differences (P< 0.05) in the prevalence of hypodermosis both in the field as well as in the slaughter house studies. Age-wise prevalence in the field as well as in the slaughter house animals showed the highest prevalence in the age group of 1-2 years as compared to the age groups of < 1 year and > 2 years. Analysis of data by Pearson Chi-square test, using SPSS version 16, revealed highly significant differences (P< 0.05) in the prevalence of hypodermosis amongst age groups both in the field as well as in the slaughter house studies. No significant difference was observed sex-wise and breed-wise in both the studies of fields and slaughter houses of the study areas.
The life cycle pattern in naturally infested goats with warble fly was studied in the fields and slaughter houses of the study areas from April 2011 to March 2012. All the observations regarding the life cycle stages were recorded. First instars larvae (L1) were observed in subcutaneous tissues from mid of May to mid of July in slaughter houses of the study areas. Second instars larvae (L2) were observed in the slaughter houses from mid of July to November. Third instars larvae (L3), as well developed warbles on the back and flank regions of the goats, were palpated in the field animals and observed in the slaughter houses from December until the end of February. The pupal period was observed in early spring in the months from March to mid of April. No larvae were observed in the slaughter houses and fields of the study areas during this period while the adult fly activity season (Oviposition period) was observed in early summer from mid of April to mid of May.
The estimation of economic losses due to skin damages were determined by multiplying the estimated infested numbers of skins with the value of loss per skin. The overall losses due to warble fly infestation in the study areas were calculated as Pak. Rupees 7578625.49 (Pak. Rs 7.57 million = US$ 77530.69, US$ 1= Rs. 97.75) annually.
Based on the early detection studies, it is concluded and recommended that the best time for the treatment of goat warble fly infestation in uplands of Balochistan is in the months of June and July when first larval instars are still in migratory stage and not yet have reached their final sites on the back and flank regions of goats to cause damage to the skin, where as the farmers usually treat their animals against warble fly in the winter season when they observe the warbles on the backs of the animals but at that stage the larvae have damaged the skins of the animals.
Availability: Items available for loan: UVAS Library [Call number: 1771,T] (1).
4.
Epidemiological Studies And Evaluation Of Anthelmintic Resistance Against Gastrointestinal Nematodes Of Sheep In Balochistan
by Hamdullah | Dr.Muhammad Lateef | Prof | Prof. Dr. Azhar maqbool.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2013Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1960,T] (1).
5.
Clinico-Epidemiological And Experimental Observations On Feline Lower Urinary Tract Disease Among Domesticated Cats
by Abeera Naureen (2007-VA-541) | Prof. Dr. Muhammad Sarwar Khan | Prof. Dr. Muhammad Arif Khan | Prof. Dr. Azhar Maqbool.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: Idiopathic Feline Lower Urinary Tract Disease (iFLUTD) has been known as a major as well as important problem throughout the world especially the veterinary profession. Nicks of this problem also found in Pakistan, however the veterinarians are usually unable to properly diagnose this disease due to lack of knowledge as well as the ancillary diagnostic equipment availability for this disease. Present study was divided into two phases. Phase – 1 included clinico-epidemiological data. To this end, target of more than 502 domesticated client-owned cats of either sex, age, breed, etc showing signs of feline lower urinary tract disease (FLUTD) as per Buffington (1994) were examined accordingly from 3 different cities (Lahore, Faisalabad, and Islamabad) of Pakistan). All data collected was based on a predesigned proforma by using structured interview of the owners. Diagnosis was solely based on serum-cortisol levels, urinalysis, radiography and ultrasonography. Phase II involved experimental trial. The data obtained from whole of the study was then presented in tabulated form as frequencies and percentages. Treatment and outcome of the disease were also analyzed accordingly.
According to the present study conducted it is proved that iFLUTD is present among the cats in Pakistan. Its proper cognizance among the Pakistani veterinarians is still non-existent and is misdiagnosed as colic or constipation issues in cats. The present study was undertaken to bring iFLUTD into the reportive of small animal practitioners working in Pakistan. The present study debunked various previous notions like iFLUTD is associated with commercial diets and canned foods only if we talk about this region majority of cases were noticed that had home-cooked food given by the owner. Moreover, cases in Siamese breed are larger than Persian breed. It has been strongly associated with Indoor housing management. Additional work is still needed to explore untouched areas of epidemiology including factors other than those being studied in the previous literature. Academicians in veterinary pathology and veterinary medicine of Pakistani universities should embrace this malady in the Doctor of Veterinary Medicine (DVM) curricula.
According to the present study results it is concluded that two factors like stress and pain accelerate the sympathetic nervous system outflow compared to normal felines leading to the inflammatory response. Thus the stress factor must be reduced in the form of making hiding places for cats at home to reduced down the fear factor along with enhancing the feeling of owes for that particular place. Moreover, some more practices should be performed by the owner to reduce down the stress factor like playing with the pet, giving full attention, placing toys and other attractive things like yarn balls at the feline places (where they live/placed). There was no significant difference found between the groups based on the food with health score along with the therapeutic judgment. Hence, it is recommended that more experiments should be performed on larger scale to assess GAG therapy on increased number of felines and need of hour is to conduct more veterinary studies to get information and authenticity for its use against iFLUTD.
From this study conducted, I recommend to the owners that the cats must be provided with the indoor hiding places and play with their pets in order to reduce the stress factor that increases the risk of idiopathic lower urinary tract disease. Moreover, the trend of home-cooked diet should be reduced along with increase in water intake by the cat.
Availability: Items available for loan: UVAS Library [Call number: 2420-T] (1).
