Serum Alkaline Phosphate Polymorphism in Crossbred Cattle of Kerala
By: Jacob Abraham.
Contributor(s): Nandakumaran B (Guide).
Material type:
BookPublisher: Mannuthy Department of Animal Breeding and Genetics, College of Veterinary and Animal Sciences 1995DDC classification: 636.082 Online resources: Click here to access online Dissertation note: MVSc Abstract: The present investigation was undertaken to identify the the biochemical polymorphism at serum alkaline phospha-tase (SAP) loci and to study the heterogeneity of SAP variation in crossed cattle. It was also envisaged to analyse the association of SAP variation and traits of economic importance such as milk production and composition of milk. One hundred and ten animals belonging to two different crosses of local nondescript cattle viz. Crossbred Holstein Friesian (57) and Crossbred Brown Swiss (53) were typed for SAP variance by standardizing Horizontal Polyacrylamide Gel Electrophoresis (PAGE). Two genotypes FS and SS were determined. The highest frequency of FS genotype was in Holstein Friesian crossbred than in Brown Swiss crossbred. The genotype FF was absent in both the crossbreds. The highest frequency of SS genotype was in Brown Swiss crossbred than in Holstein Friesian crossbreds.
Two alleles namely PF and PS with two phenotypes FS and SS were identified as SAP locus. PT allele had the frequency of 0.20 and PS allele had the frequency of 0.80 in the pooled crossbreds. Both the Holstein Friesian crossbreds and Brown Swiss crossbred are in genetic equilibrium at the SAP loci. No association could be established between milk yield (305 days) and serum alkaline phosphatase level. A non significant negative correlation existed between milk fat percentage and SAP level whereas a significant positive correlation existed between milk SNF percentage and SAP level. The correlation between SAP level and milk total solids were found to be negative and non significant in Brown Swiss crossbreds whereas a non significant positive correlation existed between the SAP level and milk total solids in Holstein Friesian crossbreds.
Animals belonging to the FS genotype are better producers compared to the SS genotype For higher fat percentages, the performance of SS genotype was compara- tively better. The performance of SS genotype is better for producing milk with more than 8.5 percentage of SNF. FS genotype performed better for producing milk having higher percentage of total solids.
| Item type | Current location | Call number | Status | Date due | Barcode |
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Theses
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KAU Central Library, Thrissur Theses | 636.082 JAC/SC (Browse shelf) | Available | 170954 |
MVSc
The present investigation was undertaken to identify the the biochemical polymorphism at serum alkaline phospha-tase (SAP) loci and to study the heterogeneity of SAP variation in crossed cattle. It was also envisaged to analyse the association of SAP variation and traits of economic importance such as milk production and composition of milk. One hundred and ten animals belonging to two different crosses of local nondescript cattle viz. Crossbred Holstein Friesian (57) and Crossbred Brown Swiss (53) were typed for SAP variance by standardizing Horizontal Polyacrylamide Gel Electrophoresis (PAGE). Two genotypes FS and SS were determined. The highest frequency of FS genotype was in Holstein Friesian crossbred than in Brown Swiss crossbred. The genotype FF was absent in both the crossbreds. The highest frequency of SS genotype was in Brown Swiss crossbred than in Holstein Friesian crossbreds.
Two alleles namely PF and PS with two phenotypes FS and SS were identified as SAP locus. PT allele had the frequency of 0.20 and PS allele had the frequency of 0.80 in the pooled crossbreds. Both the Holstein Friesian crossbreds and Brown Swiss crossbred are in genetic equilibrium at the SAP loci. No association could be established between milk yield (305 days) and serum alkaline phosphatase level. A non significant negative correlation existed between milk fat percentage and SAP level whereas a significant positive correlation existed between milk SNF percentage and SAP level. The correlation between SAP level and milk total solids were found to be negative and non significant in Brown Swiss crossbreds whereas a non significant positive correlation existed between the SAP level and milk total solids in Holstein Friesian crossbreds.
Animals belonging to the FS genotype are better producers compared to the SS genotype For higher fat percentages, the performance of SS genotype was compara- tively better. The performance of SS genotype is better for producing milk with more than 8.5 percentage of SNF. FS genotype performed better for producing milk having higher percentage of total solids.
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