Holstein Friesian genetic introgression and its association with estimated breeding values and expected producing ability in Karan Fries cattle

MANAS KUMAR DAS; AVTAR SINGH; SAT PAL DIXIT; S JAYAKUMAR; ARPAN UPADHYAY

doi:10.56093/ijans.v85i4.47822

Authors

MANAS KUMAR DAS PhD Scholar, National Dairy Research Institute, Karnal , Haryana 132 001 India
AVTAR SINGH Principal Scientist, Dairy Cattle Breeding Division, National Dairy Research Institute, Karnal, Haryana 132 001 India
SAT PAL DIXIT Principal Scientist, National Dairy Research Institute, Karnal , Haryana 132 001 India
S JAYAKUMAR Scientist, National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India
ARPAN UPADHYAY PhD Scholar, National Dairy Research Institute, Karnal , Haryana 132 001 India

https://doi.org/10.56093/ijans.v85i4.47822

Keywords:

Crossbred, EBV, EPA, Inheritance, Introgression, Microsatellite

Abstract

Introgression levels inform us about the admixture of genes within the genome of 2 populations due to crossing among them. The present investigation was carried out to determine the introgression levels of Holstein Friesian (HF) into crossbred Karan Fries (KF) cattle, developed under controlled breeding programme at National Dairy Research Institute (NDRI), Karnal, India. The association of HF introgression levels with estimated breeding values (EBVs) and expected producing ability (EPA) of KF cattle were also estimated. Eighteen reported microsatellite
markers were used in the study and the HF introgression levels were assessed through STRUCTURE 2.3.4 program. Inheritance percentages of HF in the studied KF cattle showed varying degree of levels ranged between 50 and 75%. The results showed that the average HF introgression per cent in KF cattle was 52.30% ranging from 15.96 to 87.21%. The EBV and EPA showed significant association with increasing HF introgression levels. However, HF inheritance levels had nonsignificant effect on those traits. Introgression levels may be the future tool for explaining the productive performances of crossbreds than inheritance levels.

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