1.
Study On The Status And Risk Factors Of Brucellosis In Bovines Of District Poonch, Azad Jammu And Kashmir
by Muhammad Kashif Idrees (2008-VA-68) | Dr. Arfan Ahmad | Dr. Muhammad Zubair Shabbir | Dr. Muhammad Avais.
Material type: ; Literary form:
not fiction
Publisher: 2016Dissertation note: Brucellosis is one of the main diseases which played a blemished role in destroying the economy of livestock farmers in Azad Jammu and Kashmir in the form of low productivity and reproductive disorders. In district Poonch, abortions rates in bovines have been increased tremendously during the last decade. To find out the Status of brucellosis in cattle and buffalo, 300 animals (n=150 cattle; n=150 buffalo) were randomly selected and screened for brucellosis in district Poonch AJK. Various risk factors like species, age, sex, pregnancy, lactation, abortion, breeds, repeat breeding, retained placenta, housing, feeding, management were also evaluated for their impact on occurrence of brucellosis in this area. Data regarding risk factors of each animal was recorded in a Performa (Attached as annexure A). Serum samples were collected from these animals and analyzed through RBPT. The serum samples positive for Brucella abortus through RBPT were further subjected to indirect ELISA for further confirmation. Serum samples analysis was done at University Diagnostic Lab, University of Veterinary and Animal Science, Lahore. The results showed the overall seropositivity of 3.7% and 2.7% in cattle and buffalo through RBPT and i-ELISA, respectively. Moreover the result revealed that in cattle the positivity was more (4.6%) and in buffalo was comparatively less (2.7%) through RBPT and through i-ELISA same more positivity (3.4%) in cattle than buffaloes (2.0%). The results revealed that positivity of brucellosis increases with the age. The positivity in non-pregnant was more than that of pregnant while the positivity in non-lactating animals more than the lactating animals. The animals with the history of abortion and retained placenta were more serological positive than the animals without history such history. In breed wise comparison crossbreed cattle and Nili-Ravi buffaloes evidenced more serological positive
43
Summary
percentage. Sex wise the female animals have more positivity compared to male animals. As far as village wise positivity Hajera, Davarandi, Mandol, Madarpur, Nakkar were evidenced for presence of brucellosis. Regarding impact of risk factors in the occurrence of brucellosis, statistically there was non-significant (≥0.5) difference observed in this study. The findings of this study evidenced that brucellosis is present and endemic in cattle and buffaloes in the district Poonch. However it was suggested that more surveys are required across the country in order to formulate a policy for prevention and control of brucellosis in livestock. Availability: Items available for loan: UVAS Library [Call number: 2625-T] (1).
2.
Effect Of Probiotics On Growth Rate And Occurrence Of Diarrhea In Neonatal Holstein Friesian Calves
by Muhammad Ayaz Ahmad (2010-VA-236) | Dr. Muhammad Hassan Saleem | Dr. Muhammad Avais | Dr. Arfan Ahmad.
Material type: ; Literary form:
not fiction
Publisher: 2017Dissertation note: Dairy sector commercialization is growing in Pakistan. The import of Holstein cows has been dramatically increased from last decade. Calf mortality is the major constraint in the field of livestock. Calves are considered as the future of dairy farm and mainly responsible for the replacement of stock. Certain diseases cause calf mortality among which bacterial infections carry prime importance.Supplementation of probiotics in milk will reduce the occurrence of diarrhea and increase the body weight, growth rate and average daily gain in Holstein Friesian calves.Holstein Friesian calves (n=60) will be taken from their dams at six days of age and all calves on the basis of initial weight and sex will be selected for the trial. There will be (n=40) calves in the probiotic group and (n=20) calves in the control group.Each group will be further sub-divided into two sub-groups i.e. (n=20) in Group B and (n=25) in Group C. The initial average weight of the calves will be determinedin the two groups. The health status of the calves will be monitored daily with particular attention paid to the occurrence of diarrhea. The actual trial period will start at weaning (day 0) when the calves will be six days old and will be stopped 56 days later. All calves in probiotic group will be offered milk containing probiotic (Calf PRE RD, TechMix, LLCTM, USA) at the dose rate of 4gm per calf per day. The health status, body weight, average daily weight gain and occurrence of diarrhea will be monitored on daily basis. All calves will be given a diarrhea score according to the following scale: 0 = firm, no signs of diarrhea, 1 = soft, slightly loose feacal consistency and 2 = liquid, very loose feacal consistency(Jatkauskas et al., 2010). For each calf the daily scores and the number of days with liquid feaces (score 2) will be summed into an index of the severity of the diarrhea.
Data on occurrence of diarrhea will be compared among groups by using Chi-square (χ2) test whereas data on growth rate, body weight and average daily gain will be measured using t-test. All data will be analyzed using SPSS (statistical package for social sciences),P< 0.05 will be considered significant.
The current study will help in reducing the occurrence of diarrheain Holstein Friesian calves. Further, it will also assist in finding out the efficacy of probiotics supplementation in reducing the incidence of calf mortality.
Availability: Items available for loan: UVAS Library [Call number: 2811-T] (1).
3.
Serological Investigation Of Bovine Viral Diarrhea In Wild Ruminants At Zoological Gardens In Punjab
by Sadam Hussain (2010-VA-223) | Dr. Muhammad Avais | Dr. Syed Saleem Ahmad | Dr. Arfan Ahmad.
Material type: Publisher: 2017Dissertation note: Bovine Viral Diarrhea is an infection of bovines that lead to poor reproductive performance, decrease milk yield, ill thrift and immunosuppression. It is caused by BVD virus, a member of the genus pestivirus of the family Flaviridae .The BVD virus is an RNA virus and has two genotypes BVDV1 and BVDV2. Each genotype has further two biotypes, cytopathogenic and non-cytopathogenic on the basis of their effect on cell culture.Environmental and socio-economical changes have led to an increase of interactions between wild and domestic species worldwide, aphenomenon that has received a growing attention during the past decade. It is now largely recognized that wildlife can play important role in the epidemiology of infectious diseases shared between wild and domestic species.In particular, the potential of wild animals as pathogen reservoirs and sources of infection for domestic livestock has been increasing concern of that. Therefore for the successful control program of infectious diseases, it is mandatory to investigate the status of wildlife as a reservoir of infection.
This study was conducted in zoological collection of wild ruminants in different zoos i.e. Lahore Zoo, Safari Wildlife Park, and Lal-Suhanra Wildlife Park and privately owned captive wild ruminants in Punjab province. The Samples were processed at university Diagnostic laboratory (UDL) of UVAS, Lahore.
In this study 150 serum samples of wild ruminants were examined at zoological gardens and privately owned captive wild ruminants at Punjab, Pakistan randomly. Blood samples of 3ml from Deer (n=75), Urial sheep (n=55), Mouflon sheep (n=10) and Ibex (n=10) were collected. The serum samples were screened by competitive ELISA and it was observed that overall seroprevalence was 8% and animal wise was seroprevalence in deer was 5.33%, in Urial sheep was 12.72% while in Ibex was 0% and in Mouflon sheep was 10%. Specie, breed,age, sex physical condition, deworming and colostrum feeding were non-significant associated risk factors.It is concluded that BVD is prevalent among wild ruminants kept at various zoological gardens in Punjab.
Availability: Items available for loan: UVAS Library [Call number: 2818-T] (1).
