Effect Of Light Restriction On Performance Of Baroilers Fed Conventional And Non Conventional and Non Conventional Growth Promoters
By: Shafique-ur-Rahman
| Dr. Athar Mahmood.
Contributor(s): Prof.Dr | Dr. Farina Malik Khattak.
Material type: 
BookPublisher: 2006Subject(s): Department of Poultry ProductionDDC classification: 0956,T Dissertation note: This study was performed to investigate the effects of light restriction and non conventional growth promoters on growth performance of broilers. For this purpose one hundred and eighty broiler chicks were grown in an open sided house for a period 42 days. Chicks were randomly distributed into four groups (A, B, C and D) each containing five replicates with nine birds each. Groups A and B were reared under continuous light, groups C and D received restricted light of 20 hrs light and 4 hrs dark.. Groups A and C were fed with diet containing conventional growth promoter. Zinc bacitracin at dose rate of 0.5 grams per kilogram of feed was used as a conventional growth promoter. Groups B and D received non conventional growth promoters. Botanical growth promoter 1 (B.G.P 1) was used as non conventional growth promoter dose rate was 1 gram per kilogram of feed. Body weight gain and feed intake was recorded weekly. At the end of the experiment mortality, microbial count and economics of the project was calculated. Data revealed that birds in all groups had non significant (P>0.05) weight gain, feed intake and FCR when compared with each other. Microbial count was higher in groups fed with conventional growth promoters than non conventional growth promoters. Mortality in control group A was highest (8.8%) as compared to group B, C and D which was 4.4. 6.6 and 0% respectively. Rectal temperatures of all treated groups were similar (37oC) to those of control birds. This study clearly indicated that non conventional growth promoter can be used in place of conventional growth promoters and restricted lighting reduces mortality and electricity cost.
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Thesis
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UVAS Library Thesis Section | Veterinary Science | 0956,T (Browse shelf) | Available | 0956,T |
This study was performed to investigate the effects of light restriction and non conventional growth promoters on growth performance of broilers. For this purpose one hundred and eighty broiler chicks were grown in an open sided house for a period 42 days. Chicks were randomly distributed into four groups (A, B, C and D) each containing five replicates with nine birds each. Groups A and B were reared under continuous light, groups C and D received restricted light of 20 hrs light and 4 hrs dark.. Groups A and C were fed with diet containing conventional growth promoter. Zinc bacitracin at dose rate of 0.5 grams per kilogram of feed was used as a conventional growth promoter. Groups B and D received non conventional growth promoters. Botanical growth promoter 1 (B.G.P 1) was used as non conventional growth promoter dose rate was 1 gram per kilogram of feed. Body weight gain and feed intake was recorded weekly. At the end of the experiment mortality, microbial count and economics of the project was calculated. Data revealed that birds in all groups had non significant (P>0.05) weight gain, feed intake and FCR when compared with each other. Microbial count was higher in groups fed with conventional growth promoters than non conventional growth promoters. Mortality in control group A was highest (8.8%) as compared to group B, C and D which was 4.4. 6.6 and 0% respectively. Rectal temperatures of all treated groups were similar (37oC) to those of control birds. This study clearly indicated that non conventional growth promoter can be used in place of conventional growth promoters and restricted lighting reduces mortality and electricity cost.
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