Genetic evaluation of wool quality parameters in Harnali sheep

Satpal Dahiya; Dr. Tarun  Sehgal; Dr. Poonam Ratwan; Dr. Devender Singh Dalal; Dr. Chandersekhar Patil; Dr. Rohit Sharma; Dr. Yogesh Bangar

doi:10.56093/ijans.v96i2.157289

Authors

Satpal Dahiya LLR University of Veterinary and Animal Sciences, Hisar -125004, Haryana
Dr. Tarun Sehgal
Dr. Poonam Ratwan
Dr. Devender Singh Dalal
Dr. Chandersekhar Patil
Dr. Rohit Sharma
Dr. Yogesh Bangar

https://doi.org/10.56093/ijans.v96i2.157289

Keywords:

Breeding value, Genetic parameters, Genetic trend, Harnali sheep, Wool quality

Abstract

The current research focused on genetic evaluation of wool quality parameters in Harnali sheep and the data were recorded from pedigree sheets of 1048 animals. The study focused on four characteristics of wool: medullation percentage (MP), fibre diameter (FD), staple length (SL), and greasy fleece weight (GFW). For GFW, SL, FD, and MP, the corresponding least-squares means were 1729.48±13.9 g, 5.08±0.02 cm, 25.24±0.12 microns, and 26.21±0.29%, respectively. GFW and MP were significantly affected by the lamb’s birth period. Sex of lamb and dam's weight at lambing was found to have significant effect on GFW. By leveraging the sire component of variance and covariance from mixed model analysis, the paternal half-sib correlation method was used to estimate genetic and phenotypic parameters. The heritability estimates were 0.32±0.07, 0.17±0.05, 0.27±0.06, and 0.29±0.06 for GFW, SL, FD, and MP, respectively. Favourable genetic and phenotypic trends over the years were observed for FD, MP and GFW, though, more attention is required for SL where the trend observed was not favourable. Sire breeding values for various traits under study indicated genetic variability and it is recommended to use top ranking sires for further genetic improvement in wool traits. Although heritability for some wool quality traits was moderate, the index selection could be a better choice for the improvement of these traits.

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Author Biographies

Satpal Dahiya, LLR University of Veterinary and Animal Sciences, Hisar -125004, Haryana

Veterinary University Professor
Dr. Tarun Sehgal

Veterinary Surgeon, Govt. of Haryana, India
Dr. Poonam Ratwan

Scientist, Department of Animal Genetics & Breeding, LUVAS,

Hisar – 125004 (Haryana) India
Dr. Devender Singh Dalal

Retd. Professor, Department of Animal Genetics & Breeding, LUVAS, Hisar – 125004 (Haryana) India
Dr. Chandersekhar Patil

Assistant Professor, Department of Animal Genetics & Breeding, LUVAS, Hisar – 125004 (Haryana) India
Dr. Rohit Sharma

Assistant Professor, Department of Animal Genetics & Breeding, Sri Ganganagar Veterinary College, Tantia, Rajasthan - 335002
Dr. Yogesh Bangar

Scientist (Statistics), Department of Animal Genetics & Breeding, LUVAS, Hisar – 125004 (Haryana) India

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