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The Influence Of Egg Weight On Hatchability Chick Weight And Its Subsequent Performance Upto Six Weeks

By: Farooq, M | Ehtisham Pervaiz.
Contributor(s): Mian Nisar | Muhammed Aslam Bhatti.
Material type: materialTypeLabelBookPublisher: 1989Subject(s): Department of Livestock ProductionDDC classification: 0013,T Dissertation 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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Veterinary Science 0013,T (Browse shelf) Available 0013,T
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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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