1.
Study On The Incidence Of Lameness In Broilers Of Different Age Groups Under Different Management Conditions In And Around Lahore
by Nooman Sh., M | Ehtisham Pervaiz | Javaid Ahmed | Muhammed Aslam Bhatti.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1989Dissertation note: The study was aimed to find out the incidence of lameness in broilers at different age groups under different management conditions in and around Lahore.
The project was devided into two parts.
1. Research Work
2. Survey Work
Research Work
In research two hundred broilers chicks were reared in the college. They were brooded uniformly for two weeks. Then 162 birds were selected randomly and divided into three treatments i.e. A, B and C on the basis of depth of littre i.e. 1 inch, 2 inches, and 3 inches respectively. The parameters studied were weight gain, lameness and mortality from 3 weeks to 6 weeks age.
Weekly data starting from 3rd week onward revealed that the treatment C having 3 inches depth of littre gained more weight, less leg lameness and differed highly significantly (P<0.01) from B and A.
Survey Work
In Survey Work three data from types of farms I, II and III (Houses having length less than 50 feet, width less than 30 feet and window height less than one foot from the floor)(Houses having length in between 50-70 feet, width 30 feet and window height 1-2 feet from the floor) and (Houses having length more than 70 feet, width more than 30 feet and window height more than two feet from the floor were collected and analysed.
The study was based on three different age groups i.e. 3 weeks, 6 weeks and 7 weeks. The study revealed a highly significant difference (P<0.01) in three age groups. Three weeks age group showed least leg lameness. A highly significant difference was also observed between age groups of 6 weeks and 7 weeks. This difference is because broiler start gaining weight rapidly after 5 weeks.
A significant difference was also observed in all the Specification. A highly significant difference was observed between specification I and III and II and III. No Significant difference was observed between specification I and II. It was observed that as the length, width and window height from the floor increased the leg lameness also increased.
There was no mortality throughout the experimental period.
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2.
Study On The Effect Of Various Floor Spaces On Feed Efficiency, Weight Gain And Dressing Percentage Of Broilers Kept On Litter System
by Zain-ul-Abidin | Ehtisham Pervaiz | Muhammed | Muhammed Saleem.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1981Dissertation note: An experiment was designed to study the effect of population density on the weight gain, feed efficiency, dressing percentage and carcass chemical composition of the broilers at 8 weeks of age. One hundred day-old (Hubbard) chicks were reared in the floor pens with wood litter for 2 weeks, after 2 weeks 90 chicks were selected and were randomly divided into 3 groups of 30 chicks each. Each group was further sub divided into three replicates of 10 chicks of groups were placed at densities of either 0.5, 0.75 and 1.0 square foot per bird up to 8 weeks of age. Other conditions were the same for all the groups.
Data was recorded in respect of body weight gain, feed efficiency. The average gain in body weight per bird at 8 weeks of age was 1827, 1878 and 1894 gm on 0.50, 0.75 and 1.0 square goot space per bird, respectively. The feed efficiency values were found to be 2.19, 2.21 and 2.21 for the birds kept on 0.50, 0.75 and 1.0 square foot floor space per bird, respectively.
Differences in weight gain and feed efficiency were no significant.
At the end of the study, 3 birds from each groups were randomly taken, slaughtered, dressing percentage calculated, the meat was analysed for approximate analysis of other extract, protein and ash percentage.
However the difference due to the effect of various floor spaces were found no significant except in other extract percentage, which was more in birds kept at 0.50 square foot floor space per bird due to restricted movements. The results of present experiment showed that there was no determental effect due to different floor spaces on the performance of broiler, however, the birds kept at 0.50 showed soiled plumage and about 10 percent showed breast blisters.
Availability: Items available for loan: UVAS Library [Call number: 0012,T] (1).
3.
The Influence Of Egg Weight On Hatchability Chick Weight And Its Subsequent Performance Upto Six Weeks
by Farooq, M | Ehtisham Pervaiz | Mian Nisar | Muhammed Aslam Bhatti.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1989Dissertation note: This study was conducted at the poultry department, college of Veterinary Sciences Lahore, to examine the effect of egg weight on fertility, hatchability, chick weight and their subsequent performance up to six weeks of age. Eggs of Hubbard Broiler breeders were used in this study. The eggs were classified in four weight groups, viz; A, B, C and D with the weight range of 48-51 gms, 52-55gms, 56-59gms and 60-63gms respectively. One hundred and fifty eggs of each group were selected randomly and incubated in the hatchery. Fertility and hatchability were recorded on the 18th and 21st days of incubation respectively. Sixty chicks from each egg weight class were picked up randomly. The chicks were weighed and wing banded individually and was transferred to the thermostatically controlled electric brooder. The chicks within each egg weight group were further divided into four sub-groups with 15 chicks in each sub-group. The records of weekly weight gain, total weight and feed consumption were maintained and feed efficiency was also measured. No culling was practiced during the conduct of the experiment. Mortality, whenever occurred was recorded. The results of the present study showed a higher percentage of fertility in the group D than in groups A, B and C whereas the fertility in the group B and C was identical. The hatchability of eggs was higher in group B, followed by group C, A and D.
The chicks hatched from various egg weight groups differed significantly from each other in respect of their weights. Chicks of group D had the highest weight followed by group C, B and A respectively. Statistically highly significant differences were observed in the subsequent growth up to 6th week of age.
The feed consumption and feed efficiency of group D was apparently higher than the other three groups, but statistically there was no significant difference. Mortality was higher in group A than in the groups B, C, and D. The number of dead chicks being 4, 3, 1 and 1 respectively.
It is concluded from the present study that chicks hatched from larger and medium eggs were heavier at day old, gained considerably more weight up to 6th week of age and shoed a lower percentage of mortality as compared to chicks hatched from smaller eggs. However the chicks from smaller eggs consumed the same quantity of feed as consumed by chicks from larger and medium eggs so it is not economical to select small eggs for hatching in commercial broiler production.
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4.
Performance Of Broilers, Kept On Different Stock Densities And Depths Of Letter
by Zafar Iqbal | Ehtisham Pervaiz | Muhammed | Muhammed Aslam Bhatti.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1985Dissertation note: One hundred and twenty day-old broiler chicks were used in the study. All the birds were brooded uniformally on the floor for the first two weeks. They were then divided randomly into four treatments on the basis of floor space and litter depth, having floor spaces of 750 or 500 sq. cm. /bird and litter depths of 8 or 16 cm. The parameters studied were body weight gain, feed consumption, feed conversion ratio and mortality from 3 to 8 weeks of age. Hemoglobin concentration and differential leukocyte count were also investigated at 21st. 35th and 49th day of the experiment. Dressing percentage and chemical analysis of carcasses of birds were performed at the end of experiment.
No significant difference was observed in body weight feed consumption, feed conversion ratio and dressing percentage among the treatments. Mortality and breast blisters were negligible hemoglobin concentration was also non significant among the treatments. A significant difference was observed in Heterophil/Lymphocyte ratio and in number of lymphocytes at 35th day.
Heterophil/Lymphocyte ratio was increased while number of lymphocytes decreased by increasing the stock density. Chemical analysis of carcasses of birds also showed non-significant differences among different treatments between the values of protein, fat, ash and moisture.
Availability: Items available for loan: UVAS Library [Call number: 0017,T] (1).
5.
The Effect Of Different Dietary Protein Levels And Stock Density On The Performance Of Japanese Quail
by Ishaq, M | Ehtisham Pervaiz | Muhammed Aslam Bhatti | Nisar Ahmed.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1991Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 0064,T] (1).
6.
Influence Of Intermittent Periods Of Light Of Feed Conversion Ratio And Rater Of Growth In Broiler.
by Shafqat Mahmood | Ehtisham Pervaiz | Asif Rabbani | Ch. Muhammed Saleem.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1987Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 0123,T] (1).
7.
A Study On The Effects Of Intermittent Light On The Performance Of Japanese Quails (Coturnix Coturnix Japonica)
by Israr-ul-Haq, Chohan | Ehtisham Pervaiz | Javed Ahmed | Muhammed Aslam Bhatti.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1991Dissertation note: The study was aimed to find out the effect of different photo-periods on the body weight gain, feed consumption, feed efficiency, dressing percentage and Bone; meat ratio of J. quails. Light plays a vital role in the management of quails. The adequate light for quails should be sufficient enough to enable the birds to move about, facilitating to see, eat and drink without any extra exercise. One of the main factors, which needs further exploration is to fix up the hours of light necessary for better growth and economical production.
The present study was thus under taken to determine the appropriate and economical light dark cycle for best performance of Japanese quails, under local climatic conditions. The photo-periods provided in this experiment were 24 hours continuous light, 1 hour continuous light followed by 1 hour continuous darkness alternately, 1 hour continuous light followed by 2 hours continuous darkness and 1 hour continuous light followed by 3 hours continuous darkness to groups Li, L2, L3 and L4 respectively. 192 one day old J. quails were reared upto 6 weeks of age. Groups were further sub-divided into 3 replicates (La, Lb. La) of 16 quails each. The quails of all groups reared in battery brooders, where quails were provided floor space at the rate of 25. SQ. inches per bird, throughout the experiment.
Automatic programme timers with 25 watt bulbs were used; where controlled light was required. Feeding, watering. environmental and managemental conditions were made identical for all the birds. The birds reared under one hour continuous light, followed by 2 hours darkness. Grained more body wiehgt than that of birds of other three groups There were highly significant difference (P<0.01) in body weights of various groups of quails from 3rd to 5th weeks of age.
On applying DMR test, it revealed that the highest body weight was in group L3 followed by Li, L2 and L4 groups respectively.
The results on feed consumption by various - groups were also found to be highly significant (P<0.01)
Maximum feed was consumed by the birds kept under L3 group, followed by Li, L2 and L4 groups respectively. The observations on weekly feed conversion ratio and mortality % were found to be non-significant.
The dressing percentage increased significantly with age. Li group showed better dressing percentage compared with those of other 3 groups. There were highly significant difference (P<0.01) in the dressing percentage among various groups. DMR test revealed that Li group had better dressing percentage, followed by L2, L3 and L4 groups respectively.
The values for bone; meat ratio were found to he highly significant (P<0.01). The best bone; meat ratio were of group Li followed by L2, L3 and L4 groups respectively.
However DMR test revealed that there were non- significant difference observed in bone, meat ratio of groups L3 and L4.
Thus, the fore said study claimed that better productive growth of Japanese quails were under one hour light followed by two hours continuous darkness. There were also comparatively better results of 24 hours continuous light as compared to be L2 and L4 groups in our study.
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8.
Performance Of Broilers, Under Different Systems Of Brooding And Rearing Associated With Transfer
by Aslam Athar, M | Ehtisham Pervaiz | Javaid Ahmed | Muhammed Nawaz Asghar.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1986Dissertation note: They study was conducted on Hubbard :hicks at the Poultry Experiment Station, College of Veterinary Sciences, Lahore. The main objective of this study was to find ways and means of efficient broiler raising by using different managemental systems like floor rearing, cage rearing, transferring chicks from floor to cages and from cages to floor at different stages of rearing.
Six experimental treatments were investigated, involving 144 broiler chicks. Initially 72 chicks (treatment A) were reared in cages and 72 chicks (treatment B) on floor upto 14' days of age. On 15th day 24 birds were transferred from group A to floor (treatment C) and a similar number was shifted from group B to cages (treatment 0). on 29th day, 24 birds were again shifted to floor (treatment E) from group A. In the same way 24 birds were transferred to cages from group B(Treatment F).
The experiment continued upto 8 weeks of age. Responses measured were body weight, feed intake, FCR, Performance Index, Dressing Percentage, Breast Blisters, Mortality and Abnormalities.
The body weights at the end of 8th week were 1908,1976, 1869, 2043, 1896 and 2057g; The average feed intake was 4428, 4394, 4460, 4423, 4450 and 4521 g; the FOR was 2.318, 2.230, 2.387, 2.167, 2.350 and 2.199; The performance index was 82.312,88.810, 78.299, 94.4/4l,80.804 and 93.658; and dressing percentage was 68.89, 67.14, 67.78, 69.39, 67.75 and 68.33 for the treatment A, B, C, D, E and F respectively.
The results showed that the overall performance of caged broilers in treatments A, D, and F was comparatively better than the treatments of floor (B, C and E).
The birds that were transferred to cages (treatment D&F) gave feed conversion ratio which was significantly. (P>0.01) better than all the other groups. The caged birds gained more weight, consumed less feed, gave better FCR and produced more meat per sq. m. than the competitive groups on the floor. Among the birds reared on floor, the chicks of treatment B showed consistently better growth throughout the experiment. The figures for breast blisters and abnormalities were very similar in all treatments. The good performance of caged birds could be attributed to the better utilization of feed due to very limited movements of birds in cages.
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9.
Effect Of Intermittent Light On Physical Abnormalities & Performance In Broiler
by Shehzad Majeed | Ehtisham Pervaiz | Muhammed | Muhammed Aslam Bhatti.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 1993Dissertation note: Poultry industry has to play a considerable role in the livestock subsector in regard with the provision of meat in Pakistan. As the broiler industry is increasing day by day, the factors hindering the growth rate are also being taken into account by the farmers as well as the scientists. Besides different diseases, poor management is one of the main problems which jeopardizes the poultry production. Numerous studies conducted in various countries showed that among the other managemental problems the different light regimes to which the brioler are exposed during rearing had a significant effects on the weight gained, feed consumption and FCR. The birds exposed to the intermittent light system also showed better response in connection with physical abnormalities.
The present study was conducted to observed the effect of intermittent light regimes on the development of physical abnormalities and performance of the chicks viz, feed consumption, weight gain, FCR and dressing percentage as compared with continuous light system.
In this study, three groups of 60 chicks each were subjected to light treatment from the start of 3rd week to the end of 6th week in following way:
Group A : Continuous light (control) 24 hours
Group B : 1 hr. light : 2 hr darkness
Group C : 1 hr. light : 3 hr drakness
The feed consumption, weight gained and FCR of each group were calculated at the end of 6th week age group and analysed by one way analysis of variance techniques. Least significant difference test was applied to compare the treatment means of the groups.
Beside above dressing percentage, weight of giblets, physical abnormalities and mortality in each group was also recorded.
This study concluded that the performance of broiler chicks under intermittent system of light was significantly better as compared to continuous light system. The average weight gained during treatment period in group A, B and c were 1410, 1460, and 1510 gm respectively. Similarly the FCR of group A, B and C was 1.90, 1.80 and 1.74 respectively. It is evident from the results that overall performance of birds under group C viz. 1L:3D was significantly better than either continuous light or 1L:2D system. This better performance by the group given 1L:3D light treatment may be due to a longer resting period during which the birds mainly remained inactive. The energy thus saved was converted in to growth. As the difference in feed consumption of the groups provided 1L:2D and that provided 1L:3D was non significant therefore the FCR of group given lL:3D treatment was better. The average feed consumption by the chicks in group A, B and C are 2.371, 2.329 and 2.344 Kg respectively. The feed consumption by the chicks under intermittent light system was less than continuous light but not significant.
The dressing percentage and carcass quality of the birds subject to light treatment were also comparatively better than continuous light programme.
Availability: Items available for loan: UVAS Library [Call number: 0308,T] (1).
