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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(3): 1842-1848
DOI: https://doi.org/10.20546/ijcmas.2019.803.218


Prevalence of the Beta Case in Variants among Tharparkar, Rathi, Sahiwal, Kankrej and Cross Breed and its Influence under Selective Pressure
Mrinalini Saran1*, Ankita Gurao1, Rajeev Kumar Joshi2 and S.K. Kashyap
1Department of Veterinary Microbiology and Biotechnology
2Department of Animal Genetics and Breeding, RAJUVAS, Bikaner, India
*Corresponding author
Abstract:

Milk has been regarded as wholesome food since centuries. The major milk proteins are the casein (80%) and the whey proteins (10%). One of the prominent milk proteins in cattle i.e. beta casein, is encoded by highly polymorphic genes, leading to formation of 12 protein variants. Among them A1 and A2 variant are the most frequent; the A2 being the primitive type present in Bos indicus at higher percentage than Bos taurus. Most of the indicine cattle breed is A2 type carrying presence of histidine in A1 in contrast to proline in A2 makes it susceptible to gastrointestinal proteolysis digestion to release beta-casomorphin-7 (BCM-7), which has been implicated in various human health ailments. The following study has been conducted to concisely predict the diminishing percent of A2 allele in the cross-bred Rathi cattle herd in compared to the pure-bred Rathi and other indigenous cattle and evaluate the change in A2 allele frequency in course of generations.


Keywords: Beta-casein, A2 type milk, Cross-bred, Bos indicus
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How to cite this article:

Mrinalini Saran, Ankita Gurao, Rajeev Kumar Joshi and Kashyap, S.K. 2019. Prevalence of the Beta Case in Variants among Tharparkar, Rathi, Sahiwal, Kankrej and Cross Breed and its Influence under Selective Pressure.Int.J.Curr.Microbiol.App.Sci. 8(3): 1842-1848. doi: https://doi.org/10.20546/ijcmas.2019.803.218