1.
Copmparative Study Of Buffalo And Cow Milk As An Extender For The Semen Of Cattle & Buffalo Bulls.
by Ashraf Bajwa, M | Not Available | Not Available.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1970Dissertation note: The present study was conducted to determine the effect of buffalo milk versus cow milk on the longevity of buffalo and cow bulls semens. Two buffalo and two cow bulls were used for collection of semens. These bulls were 3-9 years of age and were maintained under similar conditions at Artificial Insemination Centre, College of Animal Husbandry, Lahore. The milk used was obtained form the same cow and buffalo throughout the study. A total of 16 samples were collected from the four bulls.Physical and Microscopical examinations were conducted to evaluate the semen and samples with 4 or above mass motility were used in the experiment. Two fractions of each extender (buffalo and cow milk) were made. First was heat treated at 90 o c but not homogenized and second was heated at 82.2o c and homogenized. The glycerol in 10 and 20% ratio was added to the diluents alongwith 1000 units of penicillin and 1 mg. of streptomycin per ml. of extended semen. The dilutions were made in 1:10, 1:20 and 1:30 extensions of both buffalo and cow-bull semen in both extenders. The semen was preserved at 5oC in the refrigerator, and observations were made on each day at even hours, for 7 days.
The data so collected were subjected to the analysis of variance, statistically and mean motility rates were also calculated to determine the comparative effects of cow milk and buffalo milk on the preservation of cow-bull and buffalo-bull semen. The study revealed:-
1. That the semen was preserved comparatively better in heat treated milk than homogenized milk both in buffalo and cow milk. This was due to the difference in heating temperature and durations in both treatments.
2. Each buffalo bull's and cow Bull's extended semen with 10% glycerol gave significantly higher motility than with 20% glycerol in both milk (buffalo and cow).
3. The motility percentage was preserved better with high concentrations of sperms than with lower concentrations. The dilution ratio in 1:10 indicated the better results than the other two extensions of 1:20 and 1:30.
4. The cow-bull semen was preserved better in both the extenders for the longer period of time than buffalo-bull semen. However the semen was preserved significantly better in buffalo milk than in cow milk.
5. That in fluid semen extension the use of buffalo milk is recommended in field for future and determination of its effects on conception rates is open for further research.
Availability: Items available for loan: UVAS Library [Call number: 0001,T] (1).
2.
Effect Of Additional Pructose On The Longevity Of Buffalo & Sahiwal Bull Semen
by Shafique, M | Not Available | Not Available.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1970Dissertation note: The present study was conducted to determine the effect of additional fructose on the longevity of buffalo and Sahiwal bull semen. Two buffalo-bulls and two Sahiwal-bulls of 3 to 9 year of age were selected for the collection of semen. These bulls were stationed at the Artificial Insemination Section of College of Animal Husbandry, Lahore, under identical environmental conditions. A total of 16 samples of semen were collected for the four bulls. BY physical and microscopical examination, samples with four or above mass motility were selected for experiment. Heated homogenized whole-buffalo-milk was used as an extender.Fructose was added in different fractions to the milk (extender) prior to semen extension. Ten percent glycerol alongwith 0.5 mg. of Streptomycin and 500 units of Penicillin per ml. of the extender were also added to each sample.
During the study, data were collected in 1:20, 1:30 fructose per 100 ml. of the extender to evaluate the effect of fructose on the longevity of semen. The data were analysed by analysis of variance, and Duncan's Multiple Range Test was also applied to determine the effect of fructose.
The Studies revealed that:-
1. The semen samples with additional fructose were significantly of higher quality than that of the samples without fructose.
2. With an increase in the fructose level alongwith extension rate, there was an increase in the longevity of the spermatozoa.
3. Sahiwal bull semen could be preserved over a longer period as compared to that of buffalo bull.
4. On motility basis, 1:40 extension with 2000 mg. of additional fructose per 100 ml. of the extender could safely be used for five and six days in case of buffalo and Sahiwal bull semen respectively. Fructose treated semen is further recommended for field trials with a view to determine actual fertility percentage.
5. The fructose had a significant effect on the longevity of semen both the buffalo and Sahiwal bull semen.
Availability: Items available for loan: UVAS Library [Call number: 0002,T] (1).
3.
Non-Return Versus Actual Conception Rate In Cows And Buffaloes For Predicting Fertility Of Bulls In Artifical Insemination
by Fakhar Allam, Sh | Not Available | Not Available.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1970Dissertation note: The present study was conducted to determine the non-return versus actual conception rate in buffaloes and Cows for predicting fertility rate of Bulls. For this purpose 6 Buffalo and 10 Cow Bulls (5 Red Sindhi and 5 Sahiwal) were selected from the Bulls of different breeds and species maintained at the Artificial Insemination Section, College of Animal Husbandry, Lahore.
During the period from 1955 to 1970 Artifical Insemination were carried out in buffaloes and Cows with good qualities semen of these selected bulls maintained at the Centre. All the semen samples were checked for physical and microscopic examinations. Extension of semen was made in Milk Glycerol Extenders containing pencillin and streptomycin and preserved from 3 to 4 days in refrigerator at 5oC. All Inseminations were mostly carried out by Intra-cervical methods and only one ml of extended semen was used.
In the present study data for first inseminations in the buffaloes and cows of selected bulls were only considered. All the non-return rate were compiled on the basis of 30, 60, 90, 120, 60-90 and 90-120 days intervals with the Ist service. The results of actual conception rate for first insemination were also considered for comparison. The data were analysed by the analysis of variance and Duncan's Multiple Range test was also applied to find out the results. The studies revealed that:
The non-return percentages between species (Buffalo and cow) fpr first insemination of different intervals were found to be significant except at 90 days interval. Similarly the non-return percentages among different specie for first inseminations were found significant.
The differences in non-return percentages for different breeds (Buffalo Red Sindhi and Sahiwal) for first insemination at 30,60,90,120 and 60-90 days intervals were found non significant but at 90-120 days interval were significant.
Highly significant differentes in non-return percentages were observed between bulls of Sahiwal Breed. It was significant between bulls of buffalo breed, while non significant differences were found between bulls of Red Sindhi breed.
The actual conception percentage for inseminations in Buffalo Bulls was lower as compared to cow bulls,but the conception rate for Sahiwal bulls was obtained higher than with Red Sindhi Bulls.
Highly significant differences were obtained in conception rate on the basis of non-return as compared to actual pregnancy test.
Significantly lower conception rates were recorded with natural service as compared to that obtained with artificial insemination.
Based on the results of this study, it may be concluded that more reliance can be placed on the conception rates based on non-return percentages at 120 days interval or above.
Availability: Items available for loan: UVAS Library [Call number: 0003,T] (1).
4.
A Comparative Investigation Of The Nutritive Value Of Various Commercially Available Fish Meals In Broiler Feeding
by Anwar ul Haq, Ch | Not Available | Not Available.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1970Dissertation note: Two experimens, one of growth and feed efficiency and the other for determination of metabolizable energy were conducted on broiler chicks. Three fish meals of 55, 45 and 40 grades prepared by M/S. Pak primco Ltd. Karachi were evaluated for their nutritive values. The control ration was supplemented with meat meal at the same level.
An 8 week growth trial was conducted and broiler chicks fed on experimental rations A, B, C, and D gained average daily weight of 18.88, 18.07, 17.59 and 18.25 grams respectively. Feed efficiency for rations A, B, C and D was 3.18, 3.27, 3.36 and 3.22 respectively. When weight gain and feed efficiency data was subjected to analysis of variance, no significant difference was observed.
In the second experiment of one week duration, metabolizable energy value of experimental rations was determined. Nine week old male chicks of equal weights were maintained in battery cages in groups of two. Three groups were fed on each experimental ration. Method of total collection of excreta was adopted. Uncorrected and corrected metabolizable energy values of rations A, B, C and D per gram were calculated and found to be 3.74, 3.35, 3.20 and 3.37 Calories in the former case and 3.50, 3.12 and 3.12 Calories in the latter case on statistical analysis highly significant differences were seen between rations A--B, A--C and A--D, while non significant differences were observed between B-C, B-D and C-D rations.
Chicks fed on rations A, B, C and D metabolized nitrogen at the rate of 28.41, 28.48, 24.89 and 30.39 milligrams per gram of diet. Significant difference at 5 percent level was observed between rations D-C, because of high protein and low mineral contents of ration D than ration C.
Following conclusions can be drawn from the present research study:-
1. All three fish meals used, possessed high nutritive value.
2. Sun curing may be a satisfactory process of drying fish meals and does not deteriorate the quality of fish meals for poultry feeding.
3. Fish meal of lowest grade gave comparable results in growth, feed efficiency and metabolizable energy values with meat meal and the latter can be completely replaced without effecting the biological value of rations.
4. Complete replacement of meat meal with fih meal of lower quality will decrease the feed cost by 15-20 percent as the latter is available at approximately half of the price of meat meal.
5. Fish meals used at 7 percent level did not give any fishy odour to the meat of broilers.
6. More research work is required to evaluate various fish meals preferably at lower levels.
Availability: Items available for loan: UVAS Library [Call number: 0007,T] (1).
5.
Incidence Of Gastro Intestinal Nematode Parasites Of Sheep Slaughtered In Municial Corporation Abattoir Lahore
by Muzarab Shah | Sheikh Altaf Hussain | Not Available.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1973Dissertation note: 1. 500 sheep guts ware examined during autumn, winter ad spring, The animals were brought from Lahore Silalkot, Jhelum, Rawalpindi, Sargodha, Lyallpur, Multan, Bahawalpur Peshawrr, Murree ad Kaghan districts, The parasites recorded ware Trichuris Ovis Haemonchus countortus, Oespharostomum venulosum, Oestphagostomum columbianum, Ostertagia circumcincta, Skrajabinems ovis, Bunostomum trigonocephalum, Trichostrongylus axei, Trichostrongylus vitrius and Chabertia ovina .
2, The changes in worm burden of different parasites varied according to changes in the weather, the overall percentage infection showed a gradual decrease from October, 1969 to February, 1970 sad a rise in March and April, 1970,
3. Trichostrongylus axei, Trichostronglys vitrinus, and Chabertia ovina were recovered from only those sheep which were slaughtered 4uring spring and the number of parasites was low,
4, The average percentage infection of Trichostrongyulus axei and Trichostrongylus vitrinus was 0,2% a4 0,4% respectively.
5. 38.4% cases of Trichuris ovis were recorded,
6. No male of Skrjubinema ovis could be found in any of the samples that were examined.
7. Of the total guts examined, 375 (75%) were found to be infected with one or more species of parasites.
Availability: Items available for loan: UVAS Library [Call number: 0271,T] (1).
6.
A Study On The Normal Blood Picture Of Buffaloes In Lahore
by Ata ur Rehman Rizvi, Syed | Muhammed Irfan | Not Available.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1973Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 0277,T] (1).
