1.
Response Of Cryopreserved Nili Ravi Buffalo Bull Semen To Gallic Acid Inclusion In Semen Extender
by Muhammad Tariq | Dr. Imtiaz Rabbani | Dr. Hafsa Zaneb | Dr. Muhammad Shahbaz Yousaf | Faculty of Biosciences.
Material type: ; Format:
print
Publisher: 2012Dissertation note: The major population of buffalo in the world (more than 75%) is located in Asia and 14% in Pakistan, where buffaloes play an important role in rural livestock production providing milk, meat and work draft force. Genetically the ratio of proven buffalo bulls is lesser than cattle bulls, and additionally the volume of semen and spermatozoa concentration is also lower than cattle semen. The success of inseminating buffalos with cryopreserved semen is also low, which account for major cause of fertility problems.
During cryopreservation, the spermatozoa faces osmochemical, mechanical and thermal stresses, which are predominant at dilution, cooling, equilibration, freezing and thawing stages which lead to damage spermatozoa functional and morphological characteristics. Beside these exogenous stresses, oxidative stress damages the spermatozoa endogenously. Keeping in mind all these problems, the reduction of these stresses through inclusion of antioxidants in semen may improve its quality and ultimately the fertility of buffalo bulls. This may be obtained from antioxidant addition to extender at the time of cryopreservation. Gallic acid possess good antioxidative properties, the use of this polyphenolic compound may reduce oxidation in buffalo bull semen.
In the current study, semen from four (n=4) healthy Nili Ravi buffalo bulls was collected by artificial vagina and GA was added to the semen @ 1 µM, 15 µM, 30 µM, 45 µM, 60 µM, and 100 µM and a total of six groups were prepared. One group was kept control and no GA was added to that group. The routine quality evaluation of semen for motility and concentration was made, extender was added, then semen cooled to 4°C filled in 0.5mL straws for 4 hours and frozen in liquid nitrogen at -196 °C.
The semen was then transported to the Physiology Laboratory of UVAS for further evaluations. The parameters evaluated were percentage motility, plasma membrane integrity (HOST assay), acrosomal integrity (NAR), viability (Live/Dead), DNA integrity (Acridine orange assay) and oxidative stress (TBARS assay). Five straws from each GA group were thawed individually in water bath at 37°C for 30 seconds and evaluated for quality parameters. The data collected was presented as cells ± SE and treatment groups were compared using one way analysis of variance. The group differences were compared by using the Duncan Multiple Range Test. The results revealed that GA improved (P<0.05) the spermatozoa viability and plasma membrane integrity.
In conclusion, the addition of 15 µM GA to semen extender improved marginally the buffalo bull spermatozoa motility, viability and membrane integrity but still not sufficient to reach the statistical significance, while it has no protective effects on other parameters like Acrosomal integrity, DNA status and oxidative stress. However further studies are needed to assess the role of GA in different concentrations and other animals.
Availability: Items available for loan: UVAS Library [Call number: 1456,T] (1).
2.
Response Of Dietary Yeast Supplementation In Chronic Heat Stressed Broilers On Serum, Liver And Meat Macro- and Mircro-Minerals
by Tasneem Akhtar | Dr. Muhammad Shahbaz Yousaf | Dr. Imtiaz Rabbani | Dr. Sehrish.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2013Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1680,T] (1).
3.
Effect Of Lipoic Axid Inclusion In Semen Extender On The Cryopreservation Of Sahiwal Cattle Semen
by Sheeraz Ghani | Dr. Muhammad Shahbaz Yousaf | Dr. Hafsa Zaneb | Dr. Imtiaz Rabbani.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2013Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1725,T] (1).
4.
Response Of The Dietary Yeast Supplementation In Chronic Heat Stressed Broilers On Serum Biochemical
by Usama Ahmed | Dr. Muhammad Shahbaz Yousaf | Dr. Imtiaz Rabbani | Dr. Sehrish.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2013Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1750,T] (1).
5.
Effect Of Different Physiological Stages On Heamatological And Biochemiscal Parameters Of Nili-Ravi Buffalo And Sahiwal Cattle
by M. Zohaib Aslam | Dr. Imtiaz Rabbani | Dr. Muhammad Shahbaz Yousaf | Mr. Muhammad.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2013Dissertation note: 6.1 Background
The proper disease diagnosis in large ruminants is required for overcoming the economy loss due to livestock poor management. Blood biochemical and hematological parameters are one of an important medium to assess the physiological and pathological condition of animals. Any physiological and pathological change can be evaluated only if the normal values are available for comparison. Factors such as age, breed, geographical location, diet, sex, diurnal variation, physical activity, pregnancy and environment are known to influence the serum biochemistry and haematology of large ruminants. Our hypothesis was to evaluate the effect of different physiological stages (pre-pubertal and pubertal) on hematological and serum biochemical parameters of Nili-Ravi buffalo and Sahiwal cattle.
6.2 Materials and Methods
Sixty blood samples (30 Cattle and 30 Buffalo) were collected from Ravi Campus Pattoki, UVAS and divided on the basis of different physiological stages, pre-pubertal (10-12) and pubertal (22-24 months) into two groups. The collected samples used to estimate complete blood counts by hematological analyzer. The biochemical parameters include cholesterol, triglycerides, total protein, urea, AST and ALT by commercially available kits (Biogene and crescent).
6.3 Statistical Analysis
Statistical Package for Social Science (SPSS) version 17 used. Further T Test was used to compare the hematological and blood biochemical between two age groups. Differences was considered significant at P<0.05 (Steel et al.1997).
6.4 Results
The hematological parameters RBCs, Hb and PCV were showed a significant difference at Pre-pubertal and pubertal stage of both buffalo and cattle. Whereas the WBCs count, lymphocytes, granulocytes, monocytes, MCV and MCH were not found significantly different at pre-pubertal and pubertal stages of buffalo and cattle. The serum level of glucose recorded highest and urea level lowest at pubertal stage in both buffalo and cattle. The cholesterol and triglyceride were found significantly (p<0.05) lowest, while liver enzyme AST and ALT were found significantly highest with the aging of animal in both species. No significant changes were observed in total protein level at pre-pubertal and pubertal stage in buffalo and cattle.
6.5 Conclusions
The WBCs, RBCs, Hb, PCV were found significantly different between pre-pubertal and pubertal stages in both species. The values of theses parameters recorded highest at pubertal stage, while granulocytes, lymphocytes, monocytes, MCV and MCH were found non-significantly different. Different physiological stages had a significant effect on glucose, cholesterol, triglycerides, Urea, ALT and AST in both species. The results of this study indicated that different physiological stages must be taken as very important factor in determining the blood parameters.
Availability: Items available for loan: UVAS Library [Call number: 1806,T] (1).
6.
Effect Of Age And Gender On Hematological And Biochemical Parameters Of Beetal Goat And Lohi Sheep
by Sidra Shafique | Dr. Imtiaz Rabbani | Dr. Muhammad Shahbaz Yousaf | Prof. Dr. Khalid.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2014Dissertation note: Small ruminants are one of the domestic animals of the inhabitants of Pakistan. In semi-arid and arid areas goat and sheep provides the main means of survival and security. So the proper health management of animals is must require for their survival. Hematlogical and biochemical tests are widely used for the diagnosis of serious animal diseases which can lead to economics losses in animals like reduced fur, wool and milk production. A large number of factors such as sex, age, gender, breed, illness, stress, seasonal variation and nutrition can affect the pattern of these clinical values. Our hypothesis was to evaluate the effect of age and gender on hematological and biochemical indices of Beetal goat and Lohi sheep in Ravi campus Pattoki UVAS.
One hundred and twenty blood samples (60 Goats and 60 sheep) were taken and divided on the basis of their age and gender (0-3 months, 9-12months and 18-20 months). Complete blood counts were performed by hematology analyzer (Abacus junior vet. Serial # 130076, Diatron GmbH wein, Austria) at W.T.O, UVAS. The biochemical parameter included albumin, globulin, cholesterol, triglycerides, total protein, urea AST and ALT were determined by commercially available kits (Biogene® and Crescent®). The arithmetic means (± SE) of hematological and biochemical parameters in different groups were calculated. The arithmetic means (± SE) of hematological and biochemical parameters in different groups were calculated. The collected data were subjected to two way analysis of variance through statistical package SPSS version 13 to evaluate mean differences in hematological and blood biochemical parameters of different age groups. Difference among the means of groups with p<0.05 was considered as significant through LSD test (Steel et al.1997).
In this study age and gender had a remarkable influence on the pattern of hematological and biochemical values of both sheep and goat. The RBCs, Hb, PCV, MCV, MCH, MCHC, WBCs and lymphocytes counts found significantly (p<0.05) higher in animal of age 18 to 20 months as compared to other groups in both species, While MCHC, monocytes and granulocytes found non-significantly (p>0.05) different. Male showed statistically (p<0.05) higher RBCs, Hb, PCV and MCV values as compared to female. The glucose, cholesterol, triglyceride, urea, AST, ALT, Total protein, albumin and globulin were found significantly (p<0.05) different by the aging of animal. Gender had no significant (p>0.05) influences on biochemical parameters of both sheep and goat.
Conclusion
Based on these findings age and gender had significant influence on hematological and biochemical parameters. In general veterinary practices, body weights are usually considered for therapeutic and nutritional strategies. Often too young animals are treated with more caution. In conclusion it can be mentioned that not only body weight but also age of the animals should be considered for devising therapeutic and nutritional strategy in livestock.
Availability: Items available for loan: UVAS Library [Call number: 1814,T] (1).
7.
Effect Of Age And Gender On Hematological And Biochemical Parameters Of Jattal Goat And Poonchi
by Sundas Arif | Dr. Imtiaz Rabbani | Dr. Hafza Zaneb | Dr. Muhammad Shahbaz Yousaf.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2014Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1815,T] (1).
8.
In Vitro Effects Of Bisphenol-A On The Electrophysiology Of Isolated Jejunum Of Layers
by Nabeela Hussain (2013-VA-863) | Dr Imtiaz Rabbani | Dr. Muhammad Shahbaz Yousaf | Dr. Hafsa Zaneb.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: A major nutritional problem these days is the biological and chemical contamination of food with environmental chemicals; Bisphenol A is one of these chemicals which cause contamination of food. BPA have many genomic effects, it is consider as endocrine disrupting hormone. However BPA have many non genomic effects e.g BPA enter into the body orally by use of plastic food cans lead through the intestine and liver and affects target organ. These chemicals have also shown adverse effects on development and function of the reproductive organs of the birds (Berg 2000).
Bisphenol A may affect the barrier function of small intestine of layers. Our study aimed to find out the effect of Bisphenol A on the electrophysiology of jejunum of small intestine of layers. For this purpose a total of forty layer birds were purchased from poultry farm. The birds were acclimatized for one week. Following acclimatization one bird was slaughtered daily and jejunum were collected. After stripping the jejunum was divided into four segments and was mounted in four Ussing chambers receiving four treatments as (BPA control, BPA 10 μM, BPA 50 μM and BPA 100 μM) The tissues were first incubate under open circuit conditions for 15 min and then were short circuited by fixing the voltage at 0 mV throughout the experimental period. After 5 minutes following short circuiting the tissues BPA at the concentration of 10 μM, 50 μM and 100 μM, were added on the mucosal side respectively followed by an equilibrium period of ten minutes. The tissue was further monitored for 30 minutes to note any change in electrophysiology is caused by BPA. After this 300uL of concentrated glucose solution was prepared and added to the mucosal side of each chamber to achieve the final concentration of 20mmol/L. The electrical response to glucose addition was observed. ANOVA was used to
Summary
27
investigate the effect of Bisphenol A on the electrophysiology of jejunum. Followed by Tukey. The P ˂ 0.05 was considered significant.
The results of this study showed that BPA 10μM affects the electrophysiology of intestine as compared to other groups (50μM, 100μM). Suggesting a possible role of BPA in affecting intestinal barrier function and glucose uptake. Availability: Items available for loan: UVAS Library [Call number: 2438-T] (1).
9.
Evaluation Of Multiple Heated Oil Consumption On Liver And Kidney Health In Male And Female Rats
by Sehar Ashraf (2014-VA-528) | Dr. Muhammad Shahbaz Yousaf | Dr. Imtiaz Rabbani | Dr. Saima Masood.
Material type: ; Literary form:
not fiction
Publisher: 2016Dissertation note: Reuse of oil during food making is practiced worldwide. This practice is established not only by roadside food stalls but also customary to food outlets, restaurants and hotels in big cities. The process of heating and reheating of dietary oil results in oxidation of oil and generation of free radicals and toxic compounds. These toxic compounds cause red patches and necrosis in liver and kidney, antioxidants decreases also.
The consumption of multiple heated oil may affect liver and kidney health in male and female rats. Eighteen male and eighteen female Wistar rats were taken and divided into groups. Group-I (negative control) fed chow diet and sub-divided into two groups, based upon gender, IA (negative control males) and IB (negative control females). Group-II was given chow diet mixed with 15% v/w single time heated oil and sub-divided into two groups based on gender i.e., IIA and IIB. Animals in sub-groups IIIA and IIIB were fed on chow diet mixed with 15% v/w multiple heated oil. Blood samples were collected at the end of four weeks of study. Hepatic (AST, ALT, ALP, bilirubin) and renal (creatinine, blood urea nitrogen, uric acid) functions, oxidants and antioxidants (in blood and (liver, kidney) tissues) parameters were studied. Data were analyzed using two-way ANOVA on SPSS. Differences between the groups were compared by the Tukey’s test. Differences were considered significant at P < 0.05.
Upon feeding of fried oil liver and kidney damage occurred due to oxidation of oil. But in our present study single time and multiple time heated oil consumption did not damage liver and kidney. Alanine aminotransferase, aspartate aminotransferase and liver catalase significantly higher values in oil feeding groups confirm that chow diet was energy deficient whereas oil supplementation enhance diet energy.
Availability: Items available for loan: UVAS Library [Call number: 2723-T] (1).
