National Academy of Agricultural Sciences (NAAS)
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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 2018: 95.39 NAAS RATING 2020: 5.38 |
Infectious diseases have major adverse effects on livestock production, both in terms of economics and on animal welfare. 10-25 % loss in milk production efficiency has been reported in tuberculosis infected animals. Udder infections alone account for annual economic loss of Rs. 6053.21 crores incurred by dairy industry in India. Similarly 10-25 % loss in milk production efficiency has been reported in tuberculosis infected animals. While traditional control measures such as vaccination, treatment and eradication exist, improving the genetic resistance to diseases among livestock populations is an effective alternate strategy as genetic gain is cumulative and permanent. Estimates of the heritability for susceptibility to Bovine Tuberculosis (BTB), MAP infection, Somatic Cell Count (SCC) were 0.18, 0.16 and 0.11 respectively demonstrating genetic variation for susceptibility to various infections in dairy cattle. In livestock, a number of candidate genes coding for proteins with very specific and unique roles in immune responses are potential strong candidates for investigating genetic basis of disease resistance have been investigated on the basis of their association to resistance or susceptibility in certain other diseases and their known role in disease pathogenesis. The advancement in marker research has potential implications in future selection programs if integrated with the complete genetic variant details and production traits of the herd.
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