Indian Journal of Animal Research

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Research Article

Indian Journal of Animal Research, volume 51 issue 5 (october 2017) : 813-816

Genetic studies on growth, reproduction and wool production traits in Harnali sheep

Lalit, Z.S. Malik, D.S. Dalal, C.S. Patil, S.P. Dahiya
1<p>Department of Animal Genetics and Breeding,&nbsp;Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar-125 004, Haryana,&nbsp;&nbsp;India.</p>
Cite article:- Lalit, Malik Z.S., Dalal D.S., Patil C.S., Dahiya S.P. (2016). Genetic studies on growth, reproduction and wool productiontraits in Harnali sheep . Indian Journal of Animal Research. 51(5): 813-816. doi: 10.18805/ijar.10984.

ABSTRACT

Data on growth, reproduction and wool traits of 1603 Harnali sheep maintained at Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar over a period of 22 years (1992-2013) were utilized for genetic analysis. The overall least squares mean for birth weight (BW), weaning weight (WW), six month body weight (SMW), age at first lambing (AFL), weight at lambing (WL), average lambing interval (ALI), greasy fleece weight (GFW), staple length (SL) and Fibre diameter (FD) were estimated as 3.35±0.02 kg, 12.41±0.08 kg, 16.30±0.12 kg, 707.05±2.07 days, 26.91±0.10 kg and 402.85±2.40 days, 1.62±0.02 kg, 5.65±0.03 cm and 25.85±0.07 µ, respectively. The effect of year of birth, sex of lamb and dam’s weight at lambing were significant for all growth traits. The effect of year of birth and dam’s weight at lambing were significant for all reproduction traits and GFW. No definite trend was observed over the years for body weights and reproductive traits. The effect of sex was significant for early growth traits. The heritability estimates were moderate for all the growth traits with high genetic correlations of BW and WW with SMW. Reproduction traits had lower estimates of heritability which indicated presence of lower additive genetic variance for these traits. Heritability estimates for studied wool traits were moderate to high. Positive genetic and phenotypic correlation of BW and WW with six month body weight and grease fleece weight indicated that selection for six month body weight would increase body weight and grease fleece weight.

REFERENCES


  1. Becker, W.A. (1975) Manual of Quantitative Genetics, Third Edition, Washigton State Univ. Pullman, 99163, USA.

  2. Dey, B. (2004). Genetic studies on reproduction and production traits of Nali sheep. M.V.Sc. Thesis. College of Animal Sciences, CCS Haryana Agricultural University, Hisar , Haryana, India.

  3. Dey. B., and Poonia. J.S. (2005). Reproductive performance of Nali sheep. Indian Journal of Small Ruminants, 11: 10-13.

  4. Dixit, S.P., Singh, G., Neel Kant and Dhillon, J. S. (2009). Contribution of genetic and phenotypic parameters affecting fleece traits in 3/4th bred Bharat Merino sheep. Indian J. Anim. Res., 43: 1-6.

  5. Harvey, W.R. (1990) Mixed model least squares and maximum likelihood computer program, January.

  6. Khan, N. N., Kumar, N., Das, A.K., Chakraborty, D., Taggar R.K. and Gupta, P. (2015). Genetic studies on wool production traits in Rambouillet crossbred sheep in J & K State, India. Indian J. Anim. Res, 49: 40-43.

  7. Kramer, C.Y. (1957) Extension of Multiple range tests to group correlated adjusted means. Biometrics, 13: 13-18.

  8. Lakew, M., Haile-Melekot, M., Mekuriaw, G., Abreha, S. and Setotaw, H. (2014). Reproductive performance and mortality rate in local and Dorper x Local crossbred sheep following controlled breeding in Ethiopia. Open Journal of Animal Sciences., 4: 278-284.

  9. Lee J W, Waldron D F and Veck L D. (2000). Parameter estimates for birth weight and greasy fleece weight in Rambouillet sheep. Journal of Animal Science, 78: 2108-2112.

  10. Mandakmale, S.D., Birari D.R., Shinde S.D. and Sakhare P.S. (2013). Effect of non-genetic factors on reproductive performance of Sangamaneri strain of Deccani sheep., The Indian Journal of Small Ruminants., 19: 83-84.

  11. Mane, P. M., Pachpute S.T., and Nimase, R.G. (2014). Growth and reproductive performance of Deccani sheep in an organized farm. The Indian Journal of Small Ruminants, 20: 23-27.

  12. Mir M Y, Risam K S, Kirmani M A and Gani T A S. (2000). Genetic and environmental factors influencing greasy fleece yield in a closed flock of Corriedale sheep. Indian Journal of Animal Sciences, 70: 540-542.

  13. Poonia, J.S. (2008). Reproductive performance of Munjal sheep. Indian Journal of Small Ruminants, 14: 121-132.

  14. Sehrawat, V. (2005) Studies on genetic architecture of the synthetic sheep population. M.V.Sc. Thesis. College of Animal Sciences, CCS Haryana Agricultural University, Hisar , Haryana, India.

  15. Snowder G, Van I D and Hanford K. (2005). Estimation of genetic parameters and genetic change for reproduction. Small Ruminant Research, 57:175-186.

  16. Swiger, L.A., Harvey, W.R., Everson, D.O. and Gregory, K.E. (1964) The variance of interclass correlation involving groups with one observation. Biometrics, 20: 818-826.

  17. Tomar A K S, Mehta B S and Singh G. (2000). Greasy fleece production and factors affecting it in Bharat Merino sheep under semi-arid climate of Rajasthan. Indian Journal of Animal Sciences, 70: 96-97.

     
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