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Genotypic profiling of coding region of leptin gene and their association studies on reproductive and milk production traits in Sahiwal and Frieswal cattle of India

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Title Genotypic profiling of coding region of leptin gene and their association studies on reproductive and milk production traits in Sahiwal and Frieswal cattle of India
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Creator Umesh Singh, Sushil Kumar, Rajib Deb, Sandeep Mann and Arjava Sharma
 
Subject Leptin gene, polymorphism, Frieswal, Sahiwal, polymerase chain reaction-restriction fragment
 
Description Not Available
Leptin gene has its role in appetite, metabolism, growth and milk production in cattle. Single nucleotide
polymorphisms (SNPs) in leptin gene in different cattle breeds have been reported and subsequently
associated with their production performance. The objective of this study was to evaluate the
association of genetic differences in the bovine leptin gene with milk production, reproduction, milk
constituents in Sahiwal and Frieswal cattle of India. In total, one hundred and seventy six cows were
genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to
screen the presence of three SNPs in leptin gene. The testing of Hardy- Weinberg equilibrium for the
three SNPs of within Frieswal and Sahiwal population indicated that the polymorphism site in the
populations fitted with Hardy-Weinberg equilibrium (P > 0.05) except for C/BspEI/T and C/NruI/T position
in Sahiwal. Polymorphism C/NruI/T have significant association with age at first service and age at first
calving and heterozygotes have more prolonged age at fist service and age at first calving. For milk
protein, C/BspEI/T and C/HphI/T was found to have significant effect. For lactose and SNF, C/HphI/T
polymorphism has found to be significant. In case of combined genotyping, genotype CTCTCC
(713.00±167.99 days) was found to have noticeable higher age at first service and age at first calving.
But milk production higher first lactation yield was noted for CCCCCT (3987.00±337.86 kg).
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Date 2017-07-20T08:57:33Z
2017-07-20T08:57:33Z
2013-09-20
 
Type Article
 
Identifier 4
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http://krishi.icar.gov.in/jspui/handle/123456789/4845
 
Language English
 
Relation Not Available;
 
Publisher Academicjournals