Estimation of Phenotypic and Genetic Trends in Economic Traits of Murrah Buffaloes

DOI: 10.18805/ijar.B-3925    | Article Id: B-3925 | Page : 15-18
Citation :- Estimation of Phenotypic and Genetic Trends in Economic Traits of Murrah Buffaloes.Indian Journal Of Animal Research.2021.(55):15-18
Gurpreet Kour, Raman Narang, Neeraj Kashyap, Simarjeet Kaur, Simrinder Singh Sodhi gurpreetkour1469@gmail.com
Address : Department of Animal Genetics and Breeding, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana-141 004,  Punjab, India.
Submitted Date : 20-09-2019
Accepted Date : 23-05-2020

Abstract

Background: Notable advancements in the selection indices have led to the development of exceptional breeding strategies, which have eventually led to the selection of elite dairy animals. The comparison of trends is facilitated by their estimation which permit the assessment of progress in a particular trait. The purpose of this study was to investigate genetic trends in economic traits of Murrah buffaloes, which is predominantly present as a high milk producer using the regression method. The study was designed to estimate the phenotypic, genetic and environmental trends, which represent the changes accrued over time and hence, determines the efficiency of breeding programme.
Methods: The present study was conducted on 659 Murrah buffaloes, sired by 188 bulls, over a period of 27 years (1991-2017). The economic traits studied were first lactation milk yield (FLMY), first lactation length (FLL), age at first calving (AFC), first calving interval (FCI), first service period (FSP) and first dry period (FDP). The phenotypic trends were obtained as regression of population performance on year and the genetic trends were obtained by Smith method I and II.
Result: The results revealed that the phenotypic trends obtained were significant and desirable for all the traits except for first lactation length, which was non-significant. The standard errors obtained by Smith method-I were higher than those obtained from method-II. As the Smith method-II avoids year to year fluctuations in the environment and those of contemporaries, it gives more realistic estimate as compared to the first method with lower standard error.

Keywords

Age at first calving First lactation traits Genetic trend Murrah buffaloes Phenotypic trend

References

  1. Ambhore, G. S., Singh, A., Deokar, D. K., Singh, M. and Sahoo, S. K. (2017). Phenotypic, genetic and environmental trends of production traits in Phule Triveni synthetic cow. Indian J. Anim. Sci. 87(6): 736-741.
  2. Chakraborty, D. and Dhaka, S. S. (2012). Estimation of genetic and phenotypic trends from production efficiency traits in Murrah buffaloes. Indian J. Anim. Res. 46: 410-412.
  3. Chander, R. (2002). Prediction of the breeding value of sires for life time performance traits in Murrah buffaloes. Ph. D. Dissertation, Haryana Agric. Univ., Hisar, India. 
  4. Chaudhari, M., Kumar, R., Khanna, A. S., Dalal, D. S., Khanna, S., Goyal, J. (2014). Estimation of genetic trends for economic traits in crossbred cattle by regression methods. Indian J. Anim. Res. 48(6): 527-531.
  5. Chaudhary, G. (2018). Lifetime performance and genetic, phenotypic and environmental trends of production traits in tharparkar cattle. M.V.Sc. Dissertation. Rajasthan University of Veterinary and Animal Sciences, Bikaner, India.
  6. Dash, S.K., Gupta, A.K., Singh, A., Chakravarty, A.K., Valsalan, J., Shivahre, P.R., Panmei, A. and Divya, P. (2016). Analysis of genetic trend in fertility and production traits of Karan Fries (Holstein Friesian crossbred) cattle using BLUP estimation of breeding values. Indian J. Dairy Sci. 69(2): 186-189.
  7. Dev, K., Dhaka, S. S., Yadav, A. S. and Manjeet. (2017). Estimates of genetic and phenotypic trends considering early and lifetime performance traits in murrah buffaloes. Int. J. Agric. Sci. Res. 7: 225-230.
  8. Hingane, V. R. (1980). Estimation of genetic and environmental trends for economic traits in Hariana cattle. Ph.D. Dissertation, Haryana Agric. Univ., Hisar, India.
  9. Nehara, M. (2011). Genetic analysis of performance trends in Karan Fries cattle. M.Sc. Thesis, NDRI, Karnal, India.
  10. Nehara, M., Singh, A., Gandhi, R. S., Chakravarty, A. K., Gupta, A. K. and Sachdeva, G. K. (2013). Phenotypic, Genetic and Environmental Trends in Milk Yield and Milk Production Efficiency Traits in Karan Fries Cattle. Indian J. Anim. Res. 47: 402-406.
  11. Powell, R. L. and Freeman, A. E. (1974). Genetic trends estimators. J. Dairy Sci. 57: 1067-75.
  12. Sahana, G. and Sadana, D. H. (1998). Evaluation of production performances of Murrah buffaloes. Indian J. DairySci. 51: 115-120.
  13. Singal, D. K. (1993). Estimation of genetic trends for economic traits in Sahiwal breed of dairy cattle. M.V.Sc. Dissertation, CCS Haryana Agric. Univ., Hisar, India.
  14. Singh, K. (2002). Phenotypic and genetic trends of economic traits in Hariana cattle. M.V.Sc. Thesis, HAU, Hisar, India.
  15. Smith, C. (1962). Estimation of genetic change in farm livestock using field records. Anim. Prod. 4: 239.

Global Footprints