1.
Effects Of Two Anticoccidial Drugs With And Without Supplementation Of Vitamins On The Immune System Of Broiler Chickens
by Nazim ud Din | Dr.Khalid Munir Ch | Dr.Muhammad | Dr.Shakil Akhtar Khan | Faculty of Veterinary Sciences.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1998Dissertation note: This project was designed to investigate the effects of two anticoccidials Ampisol 20% and Esb3 30% with and without supplementation of vitamins (A, D3, E and K3 as "Symodek") on the immune system of broiler chickens. To evaluate such effects the parameters used for study were; effects, on the weights of immuno regulatory organs (bursa of Fabricius, thymus, spleen and liver), organ body weight indices, histopathology of primary lymphoid organs (bursa of Fabricius and thymus), total and differential leukocytic counts, total serum protein, albumin globulin ratio and immune response to Newcastle disease virus vaccination. A total of 120 chicks, divided into 5 equal groups viz A to E were reared for 42 days. Groups A, B, C, and D were medicated with, Ampisol 20%, Ampisol 20% + Symodek, Esb3 30%, and Esb3 30% + Symodek, respectively while group E was kept as control(no drug medication). All the birds were vaccinated with ND virus vaccine on day 7th and day 2 1st. All the medication, was done through drinking water at the recommended prophylactic dosage levels.
The study revealed that Ampisol 20% had favourable effects on the weights of immunoregulatory organs, and organ (bursa of Fabricius, thymus, spleen and liver):bodyweight indices. Esb3 30% had negative effects on these parameters.
Histological studies of primary lymphoid organs (bursa of Fabricius and thymus) revealed no detrimental effects of different medications except in birds of group C and D given Esb3 30% or Esb3 30% + Symodek, where slight degenerative changes were noted in bursae and thymi.
On day 42 the mean TLC values were slightly lower in birds medicated with Esb3 30% as compared to birds which received Ampisol 20%. On day 42 the mean lymphocytic percentages were higher in groups medicated with Arnpisol 20% as compared to those given Esb3 30%. Vitamins supplementation exerted favourable effects on TLC and DLC values. This study further indicated that mean total serum protein (TSP), mean serum albumin, mean serum globulin and mean A/G ratios were higher in birds medicated Ampisol 20%, than those medicated Esb3 30%. Vitamin supplementation had augmenting effects on these values. On day 28, 35 and 42 the antibody titres in birds medicated with Ampisol 20% were higher than those given Esb3 30%. Vitamin supplementation exerted augmenting effects on the antibody titres.
It is concluded that Ampisol 20% had no immunosuppressive effects rather it exerted favourable effects on the weights of immunoregulatory organs, rpp albumin, globulin, A/G ratio, DLC and HI antibody titres against Newcastle disease virus. Esb3 30% moderately depressed the aforesaid components of immune system. The present study also revealed that vitamins (A, D3, E, K3) supplementation to anticoccidials improved the immune response of birds. However, there is a need for further investigation in this regard, with special reference to immune system of broiler chickens.
Availability: Items available for loan: UVAS Library [Call number: 0579,T] (1).
2.
Effects Of Formalinized And Oil Based Hydropericardium Syndrome Vaccines On Haematology & Immunocompetent
by Zafar Abbas | Dr.Javed Rashid | Dr.Muhammad | Dr.Shakil Akhtar Khan | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 1998Dissertation note: This study was designed to find out the effects on haematology (Hb, TLC and DLC), immune response (against NDV vaccine) and on organ body weight indices (liver, spleen, bursa of Fabricius and thymus) in broiler chickens when given two different HPS vaccines (Formalinized and oil-based HPS vaccines). Morbid livers of chickens affected with naturally occurred hydropericardium syndrome (HPS) were collected from field outbreaks to prepare the HPS vaccines and inoculum. Sixty broiler chicks were divided into three groups (A, B and C), comprising of 20 chicks in each on 10th day of experiment. At 14th day of age, chickens of groups A and B were given f-HPS and o-HPS vaccines, while group C was kept as unvaccinated control. On 28th day of age chickens of groups A, B and C were challenged with HPS inoculum. To study the effects of f-HPS and o-HPS vaccines, blood samples were collected on 12th (pre-vaccination), 26th (postvaccination) and 35th (post-challenge) day of experiment.
Haematological study revealed that f-HPS and o-HPS vaccines had no significant effects on haemoglobin concentration in groups A and B, but its concentration decreased significantly on 35th day in control group-C. Whereas TLC values increased significantly on 26th and 35th day in groups A and B, but decreased significantly on 35th day in group-C. DLC value revealed that there was relative lymphocytosis and heterpenia on 26th and 35th day in groups A and B, whereas eosinophilia on 35th day. While in control group-C there was lymphopenia and eosinopenia along with hetrophHia on 35th day. Antibody titre against Newcastle disease virus vaccine indicated that there was no significant difference in'GMHI titre values among the groups A, B and C. Results of organ body weight indices indicated that in control group-C (unvaccinated) indices of liver, spleen and bursa of Fabricius were significantly higher than those of groups A and B, whereas no effect was observed on thymic body weight index among groups A, B and C.
The results of this study suggested that f-HPS and o-HPS vaccines had no significant effect on Hb concentration, TLC and DLC values. No significant immuno-modulatory effect was noted on antibody titre against NDV vaccine of these HPS vaccines, whereas significant effect was noted on organ body weight indices of livers, spleen and bursa of Fabricius in group-C as compared to vaccinated groups.
Availability: Items available for loan: UVAS Library [Call number: 0582,T] (1).
3.
A Study On The Effect Of Experimentally Induced Caecal Coccidiosis On Weight Gain Haematological Parameters In Broilers
by Irfan Ullah Khan | Dr.Haji Ahmad Hashmi | Dr.Muhammad Afzal | Dr.Shakil | Faculty of Veterinary Sciences.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1999Dissertation note: The study was designed to observe the effect of experimentally induced coccidiosis on weight gain, FCR and somc blood parameters in broilers. For this purpose 90 day old broiler chicks were obtained from a local hatchery and reared under controlled managemental, coccidia free conditions upto 42 days of age. A commercial coccidiostat free feed and water were provided ad Jib. The birds were divided into three groups A, 13 and C, comprising of 30 birds each. The birds in group A were kept as non-infected, un-medicated control, the group B as infected and unniedicated, while group C as infected and treated with salinomycin (Coxistac 6%; Pfizer). Coxistac 6% at a doze rate of 50 grams per feed bag was provided and the resufts were studied. The chicks of group 13 and C were given oral dozes of 40,000 sporulated oocysts of jjmeria ej.eJi at the age of day 20 and 35.
There was no oocyst excretion in faeces of birds in group A, OPG of faeces in group B was higher than in group C. The OPG of faeces reached the peak during 2nd week post-infection in both the infected groups. 'Phe higher mortalit.y in the infected group 13 (20%) than in group-C (1 0%) was observed, while no mortality was recorded in group A. On postmortem it was observed that the caeca were swollen, on incision petcchial hacmorrhagcs were seen on walls of the caeca and lungs and liver of the infected carcasses were dehydrated and pale.
The group A showed highest weight gain than groups B and C. however, the group C (infected treated) showed better weight gains than group 13 (Infected). Feed conversion ratio in groups A, 13 and C were significantly different. Group A being uninfected gave the best FCR followed by birds in group C, which were medicated while birds in group B gave the poorest values.
The haemoglobin and TEC values in the infected group B were low and were normal for group A. However, the birds of group C also showed lower values as compared to group A. It was observed that the percentage of heterophils and monocytes increased, while the number of lymphocytes, basophils and eosinophils decreased in the blood of the infected groups.
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4.
Drug Efficacy Against Experimentally Induced Escherichia Coli Infection In Three Different Types Of Poultry
by Ibrahim | Dr.Muahammad Athar Khan | Dr.Shakil | Muhammad Sarwar Khan | Faculty of Veterinary Sciences.
Material type: ; Format:
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not fiction
Publisher: 1999Dissertation note: The present project made an effort to study the efficacy of different drugs on various prevalent strains of Escherichia coil isolated from chickens that were submitted for postmortem at College Of Veterinary Sciences, Lahore and Veterinary Research Institute, Lahore and also by visiting various poultry farms in Lahore region. Six different antibacterial drugs which included Amoxycillin , Enorfioxacine, Neomycin Gentamycin, Furazolidone & Flumequne were used to observe the sensitivity of the isolates. In-vitro condition, Enrfloxacine. Gentamycin and Flumequne emerged as drugs of choice in order of their decreasing importance in the experiment.
The pathogenicity of the isolated strains was tested in Swiss white mice after viable cell count, 5 mice were injected interaperitoneally with the suspension of the isolated strain at the dose rate of 0.25 ml having 3x108 bacteria while 5 mice were kept as control.
The three best drugs were further tested for their efficacy in protecting the birds from Escherichia coil infection. A total of 225 birds, comprising of 75 broiler, 75 layer and 75 indigenous (Desi chicks), each type representing a group were reared upto 6 weeks of age. At 29th day of age, each of the three group was divided into 5 sub groups comprising 15 birds each. Four sub groups out of 5 of each type was injected with pathogenic isolates of E.coli, cultured already in fresh Nutrient broth and incubated at 37°C for 24 hours, having 3x108 bacteria per 0.25 ml interaperitoneally. One sub group of each type was kept as control (uninfected and untreated). One of the four infected sub groups in each type was not treated while the remaining three infected sub groups in each type were treated with Enrofloxacine, Gentamycin and Flumequene respectively. All the groups were kept under close observation and their mortality was recorded. Maximum mortality was recorded in sub group 1 of group A (i.e. 66.67%) while in the sub groups 2 of B & C, the mortality recorded was 60% and 66.66% respectively.
According to the trial Enrofloxacin afforded maximum protection against the infection and feed efficiency, Flumequen stood second and Gentamycin stood third in boilers.
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5.
Post Vaccinal, Observation In Lymphoidal, Organs (Bursa, Spleen, Thymus) Of Broiler Chicks Inoculated
by Shajeela Irum | Dr.Sameera Akhtar | Dr.Muhammad Amin Sheikh | Dr.Shakil | Faculty of Veterinary Sciences.
Material type: ; Format:
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not fiction
Publisher: 1999Dissertation note: Infectious bursal disease (IBD) is a viral infection of chickens, causing degeneration of bursa of Fabricius and producing suppression in humoral immune response. Different vaccines are available in the market for mass scale immunization of chickens. Some contain more virulent and invasive strains than the others. Since the primary site of infection and inducement of lesions by IBDV is the hursa of Fabricius, the effect on the immune system may be significantly suppressive. This study compared two intermediate (228-E and BUR 706) and a mild (Gumborol CT) vaccinal strains of IBDV in terms of their ability to induce an antibody response and to cause damage to different lymphoid organs in chickens.
A total of 250 chicks (divided into 4 groups) were vaccinated with different strains of IBDV and the antibody levels were monitored using indirect haemagglutination (IHA) test every week post-vaccination upto 5 weeks. IHA revealed that the vaccinated with 228-E or BUR-706 had significantly higher antibody titers (GMT 8.0, 7.7, respectively) as compared to Gumborol CT vaccinated birds (GMT 3.0) on 35 days post-inoculation, On day 25 post-vaccination, some birds from each group were challenged with a fully virulent field strain of IBDV, to study whether the antibody levels were protective than the unvaccinated ones. Furthermore intermediate strains were found to be more damaging to the bursae and spleens than the milder one since lower bursal and splenic body weight ratios were recorded in them.
The study suggested the use of intermediate strains a vaccine since they induced high antibody titers as compared to that of the milder strain. However, more invasive and pathogenic intermediate strains used in this study caused more damage to the lymphoid organs harbouring B cells. So the need exists for an effective infectious bursal disease vaccine, low in virulence, which could be applied by a mass vaccination in chickens conferring excellent protection against the disease with minimum immunosuppressive effects.
Availability: Items available for loan: UVAS Library [Call number: 0606,T] (1).
6.
Studies On Duration Of Maternally Derived Antibodies Against Pasteurella Multocida In Cow Calves
by Asim Khalid Mahmood | Dr.Muhammad Amin Sheikh | Dr.Sameera Akhtar | Dr.Shakil Akhtar | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 1999Dissertation note: Haemorrhagic septicaemia, an important bacterial disease of buffaloes and cattle results due to infection of Pasteurella multocida. Undoubtedly improved management practices and regular vaccination programme has significantly contributed to lowering the incidence of the disease in our country, however, presently the outbreaks are mostly experienced in young animals, especially, calves (Sheikh et at., 1996). The present project was designed to have an idea regarding the actual period for which maternally derived antibodies were able to afford protection against any possible challenge of the infection. The study was conducted on thirty pregnant, randomly selected Sahiwal breed of cattle, maintained at Livestock Production and Research Institute, Okara. The serum samples of the vaccinated pregnant cows were collected before parturition and before the feeding of colostrum to young one. The serum samples of the calves were collected once before taking colostrum immediately after parturition and the subsequent samples were collected six hours, 72 hours, 15 days, 30 days, 45 days and 60 days after consuming colostrum. The processing of the samples for the detection of specific antibodies against P. multocida was carried out through Indirect Haemagglutination. As the dams were vaccinated they showed a high antibody titre.
The starting result was the presence of antibodies in the serum of calves without the consumption of colostrums indicating the transfer of antibodies through the placenta from the dam's blood to the calf. The highest titre in the calves was recorded between 15 to 30 days of life and ultimately it dropped to zero at the age of 60 day after the consumption of colostrums.
Availability: Items available for loan: UVAS Library [Call number: 0625,T] (1).
7.
Studies On Comparative Immune Response Of Broiler Chicken To Different Imported Live Infectious Bursal Disease
by Tariq Mehmood Shaukat | Dr.Muhammad Amin Sheikh | Dr.Sameer Akhtar | Dr.Shakil | Faculty of Veterinary Sciences.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1999Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 0626,T] (1).
8.
A Study On Prevalence, Chemotherapy & Blood Parameters Of Mixed Infection Of Fascioliasis & Haemonchosis In Goat
by Jawwad Shabbir Yousafi | Muhammad Sarwar Khan | Dr.Iftikhar Gul Ahmad | Dr.Shakil | Faculty of Veterinary Sciences.
Material type: ; Format:
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not fiction
Publisher: 1999Dissertation note: Total of 300 goats showing sign of diarrhoea and ill health were brought at Outdoor Hospital, College of Veterinary Sciences, Lahore and 40 goats suffering from Fascioliasis and/or Haemonchosis were selected and divided into 4 groups i.e. A (Mixed infection of’ Fasciola and Haemonchus spp.), B (Haemonchosis), C (Fascioliasis), D (uninfected control). Faecal egg count was performed on day 0 (before treatment), day 3 and day 10 (post treatment) by MacMaster technique. lOmi of venous blood was collected in a test tube (added with 1% EUTA) from the same animals for estimation of Total serum protein, Total leucocytic count and SGPT. The results showed that Albendazole is effective against mixed and single infections of Fasciola spp. and Haemonchus app. The efficacy of drug was 96.1%, 95.32%, 98.3% and 96.8% respectively. In infected animals there was a considerable decrease in total serum protein.
Availability: Items available for loan: UVAS Library [Call number: 0643,T] (1).
9.
Preparation And Evaluation Of Inactivated Infectious Bronchitis Virus Vaccine
by Tajammal Hussain | Dr.Muhammad Akram Munir | Dr.Khushi Muhammad | Dr.Shakil | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 2000Dissertation note: The Live attenuated infectious bronchitis H-120 vaccinal strain virus (Biotech) was purchased and processed in the Microbiology Laboratory, college of Veterinary Sciences Lahore, for vaccine preparation. For this purpose harvesting of virus, ETD5O, inactivation of fluid. Safety and Sterility testing was done. The virus grow in embryonated chicken eggs with E1D50 was 10 5.16/mi. An oil-based lB vaccine was prepared by mixing one part of the AAF with 4 part of the oil-base. The oil base contained 4 percent emulsifier (Span 80). The vaccine thus prepared from the virus which commonly present in Pakistan in layers and broilers. The cost of the vaccine production was Rs.463/bottle (1000 doses) compared to Rs.2000/bottle of imported vaccine.
Availability: Items available for loan: UVAS Library [Call number: 0651,T] (1).
10.
Studies On Stress Induced Effects In Broilers Following Vaccination (Nobilis Ma5 + Clone 30) Against Infectious Bronchitis and Newcastle Disease
by Saima Irum Syed | Dr.Asim Aslam | Dr.Sameera | Dr.Shakil Akhtar Khan | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 2000Dissertation note: This study was intended to detect the stress induced by live, freezed-dried vaccine against Newcastle disease and infectious bronchitis disease viruses in broilers and to determine the comparative efficacy of vitamins and aspirin to combat it. One hundred and sixty day-old chicks were divided into four group i.e. A, B, C and D having 40 birds each. The birds were kept for 42 days after vaccination with Nobilis Ma5+Clone 30 by eye-droppings on 1st and 22nd day of age. Chicks from group A was kept as control. Group B was given vaccine and no treatment. Group C was given vaccine and only vitamins (Vety Stress-Check). Group D was given vaccine and only aspirin. Ten birds from all groups were randomly selected to collect the serum samples from blood on 1st, 14th, 28th and 42nd day of antibody titre determination.
The following parameters were studied (1) antibody response against Newcastle disease vaccine, (ii) Serum bio-chemical substances (Total serum protein, glucose and cholesterol), (iii) Heterophil/ lymphocyte ratio, (iv) Adrenal/body weight ratio (v) Gross histopathology of adrenal glands and (vi) the economics of the flock.
The live virus Newcastle disease vaccine had no significant stressor effect on any of the above parameters. However, use of vitamins played vital role in combating the vaccination stress, because it showed immuno competent effect and also positive trend in growth traits. That is why this group showed better economic value than the rest of the groups. The effect of Aspirin was also variable.
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11.
Detection Of Stress Following Vaccination (Eimeria Vaccine) Against Coccidiosis In Broilers
by Asghar Ali | Dr.Asim Aslam | Dr.Shakil Akhtar Khan | Haji Ahmad | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 2000Dissertation note: The present project was designed to detect the stress following vaccination (Eimeria Vaccine) against coccidiosis in broilers and its management by using multivitamins and aspirin. In this study a total of 160 day old broiler chicks were randomly divided into four groups designated as A, B, C and D Group A was kept as non vaccinated, non treated control and group B was vaccinated against coccidiosis but no other treatment was given. While group C and D were vaccinated against coccidiosis and treated with multivitamins vitamins and aspirin respectively.
The parameters studied were heterophil/lymnphocyte ratio, total serum protein, serum glucose, serum cholesterol estimation, for three consecutive post vaccination days. At the end of experiment, on 42nd day, adrenal gland body weight ratio and histopatholor of adrenal gland was performed to assess any change.
In our experiment there was no statistical significant difference among different groups. 1-lowever, group C which was given multivitamins showed maximum weight gain and minimum stress, while the aspirin therapy to the group D did not show any difference with group A and B.
In the adrenal body weight ratio, there was also no significant difference among different groups. No gross and histopathological changes were seen in any group.
Availability: Items available for loan: UVAS Library [Call number: 0662,T] (1).
12.
Management Of Vaccinal (Nobilis Gumboro D-78) Stress In Broiler Chicks
by Amir Qadeer Nizami | Dr.Asim Aslam | Dr.Kamran | Dr.Shakil Akhtar Khan | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 2000Dissertation note: This project was planned to know the effects of vaccinal stress by infectious bursal disease (IBD) live virus vaccine (D-78) strain and to determine the methods by certain compounds to overcome the stress. Three hundred and thirty (330) day-old birds were reared upto 42 days. Ten birds out of 330 were slaughtered at zero day of the experiment, for estimation of maternal antibody titre. The remaining 320 birds were randomly divided into four equal groups i.e., A, B, C and D. Group A was kept as control. Group B was vaccinated but non-medicated, Group C was vaccinated and treated with vitamins for three post-vaccination days and group D was vaccinated and treated with aspirin for three post-vaccination days. Blood samples were collected on days 14th, 28th and 42nd for detection of antibody titer against IBD. Blood samples were collected from 10 randomly selected birds of each group after 1st, 2nd, 3rd and 4th day postvaccination. In this project following parameters were studied (i) estimation of serum biochemical substances, (ii) heterophil/ lymphocyte ratio, (iii) estimation of antibody response against IBD vaccine (iv) adrenal gland body weight index, (v) pathological studies
of adrenal glands and (vi) economics of the flock.
It was analyzed whether this management was an economical procedure or not by estimating the expenses, on raising the management of these stressed birds with aspirin and vitamin. It was estimated that aspirin and vitamin both check the stress to a certain extent. The birds expressed vaccination stress for variable period ranging from 1-2 days post-vaccination. In field conditions whether the flock is small or large aspirin and vitamins can be therapeutically given to control the stress and these two agents are not expensive, so they do not have any marked effect on economics of any flock.
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13.
Chemotherapeutic Studies On Experimentally Induced Ascaridia Galli Infection In Broilers
by Basir Ahmed | Dr.Muhammad Sarwar Khan | Dr.Iftikhar Gul Ahmad | Dr.Shakil | Faculty of Veterinary Sciences.
Material type: ; Format:
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; Literary form:
not fiction
Publisher: 2000Dissertation note: The study was conducted to assess the effectiveness of albendazole and oxfendazole. It was found that abendazole at dose rate of 10 mg / kg bodyweight (once orally) was 87.87% effective and oxfendazole at dose rate of 7.5 mg / kg bodyweight (once orally) was 90.90% effective against Ascaridia gjjJ infection. Parasite effected the live weight of birds and thymus weight significantly. Similarly, the total serum protein level, serum glucose and haemaglobin level were reduced significantly in infected groups as compared with group A (control non infected). The infected groups C & D were treated with albendazole and oxfendazole respectively, although treatment had reduced the number of worms but the live bodyweight, thymus weight, total serum protein, serum glucose and haemoglobin values were not significantly increased in five days post treatment as compared with group B (control infected).
The GMHI titre (Geomatric Mean Haemagglutination Inhibition Titre) against Newcastle disease vaccine was much low in infected groups (B, C and D), than control non-infected group (A). The GMHI titre in medicated groups (C&D) having some improvement of GMHI titre than control infected (B) in five days, but comparatively much low than group A.
The development in poultry improvement is possible if there is anthelmentic treatment which not only increases the bodyweight of the bird, but also help in better immune response against different diseases of the bird. It is suggested that sub clinical I un observed parasitic infection should be checked with oxfendazole and albendazole treatment and particularly the layers type of birds should be dewormed at an interval of 90 days at least.
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14.
Studies On Comparative Efficacy Of Haemorrhagic Septicaemia Vaccines In Buffalo Calves
by Hassan, M | Dr.Sameera Akhtar | Dr.Masood Rabbani | Dr.Shakil | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 2000Dissertation note: A total of eighty buffalo calves maintained at Livestock Production and Research Institute, Bahadurnagar, Okara were immunized againt HS vaccines. Alum precipitated HS vaccines were procured from Veterinary Research Institute (VRI), Lahore, Hira Pharmaceuticals (HPL), Lahore and Sindh Poultry Vaccine (SPy), Karachi. The oil based HS vaccine was procured from Nuclear Institute of Agriculture and Biology (NIAB), Faisalabad. The immune status of animals were studied using indirect haemaggluti nation test (lilA) and mouse protection test. The sera of the animals were examined for lilA titres on day zero (before vaccination) and thereafter on 15th, 30th, 45th, 60th, 75th and 90th day post vaccination.
All the test gave zero titre on day 0. A very poor immune response (GMT 2.1, 4.3, 2.8 and 2.1 for vaccines of NIAB, VRI, HPL and SPy, respectively) was observed on 15th day post vaccination. Maximum IHA geometric mean titres alutu precipitated vaccines of VRI, IIPL and SPV GMT 64, 64 and 52, respectively were recorded on 45th day post vaccination. Thereafter a decline in the titre commenced and titre recorded on 90th day for VRI, HPL and SPV were GMT 22.6, 22.6 and 14.9, respectively. The sera of animal vaccinated with oil based HS vaccine of NIAB showed high antibody titer than alum precipitated HS vaccines. The increase in antibody titre was gradual upto 90th day post vaccination. The IHA GMT was 73.3 on 45th day post-vaccination but titer was increased upto 90.5 on 90th day post vaccination. The sera having IHA titre of 1:16 and above protected 100% of challenged mice. The sera having titre 1:8 protected 80% challenged mice, but the scm with lilA titre 1:4 conferred no protection to the passively immunized mice. Furthermore, control animals lost their lives in response to challenge inoculum as 100% mortality was recorded. A strong relationship between IHA Litre and mouse protection test was found. The oil based HS vaccine gave better and long lasting immunity upto a period of 90 days. The alum precipitated vaccines gave a dismal picture and necessitates attempt for its improvement and switching over to other vaccines which may give long lasting immunity.
Availability: Items available for loan: UVAS Library [Call number: 0725,T] (1).
15.
Study On Naturtal Quine Strongylosis And Its Control
by Zahida Qadir | Dr.Khalid Saeed | Dr.H.A.Hashmi | Dr.Shakil Akhtar Khan | Faculty of Veterinary Sciences.
Material type: ; Format:
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Publisher: 2001Dissertation note: Two hundred equines of different age, sex and breed were subjected to coprological examination. A total of 65.51% sample were found to be infected with various helminths. Strongyles were the most common parasites and were detected in 58.5% of total faecal samples. The other species identified in this study included P. jprum (2%), Dictyocalus arnifeldi (1.5%), Gafitrodisus aegvuticus (1.5%), Anaplocepha species (1.5%), Strongvloides westeri (1.5%) and Strongyles + Ascaris (1.5%).
The higher infection rate of helminth parasites were observed in spring (78%) and in summer (82%) as compare with autumn (40%) and winter (56%). Highest average EPG of 530 was recorded in summer and lowest EPG of 161 in winter season. Age related susceptibilities indicated a high prevalence of strongylosis in equines of under 10 years of age as compared with horses of more than 10 years of age. A higher egg per gram of the faeces were also recorded in horses of 1-3 years of age (512) as compared with older horses. Males have higher prevalence of helminths (76%) as compared with female (49%). There was no difference in average egg shedding by male (304) and fema1 horses (296).
The anthelmintics efficacy of oxafax, ivomec and farbencja were also evaluated. Forty horses found positive for natural strongyle infection were randomly divided into four equal groups. Group A, B and C were dosed with Oxafax, Ivomec and Farbenda respectively as recommended by manufacturers. Group D acted as non-medicated infected control group. Percent egg reduction test indicated an efficacy of 96%, 98% and 81% for Oxafax, Ivomec and Farbenda, respectively on day 14 (post-medication). An efficacy of 100%, 96% and 86% were observed for Oxafax, Ivomec and Farbenda respectively on day 28, Statistically there was a non-significant difference in the efficacy of Oxafax, Ivomec and Farbendazole on days 14 and 28 post medication (P>O.05). However, these drugs showed a significant reduction in average EPG as compared with control group (P >0.05) on both sampling days.
Availability: Items available for loan: UVAS Library [Call number: 0809,T] (1).
