Asian-Australasian Journal of Animal Sciences

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
권호 표지
DOI QR코드

DOI QR Code

Genetic Parameters of Milk Yield and Milk Fat Percentage Test Day Records of Iranian Holstein Cows

  • Shadparvar, A.A. (Animal Sciences Dept., Agricultural Faculty, Guilan University) ;
  • Yazdanshenas, M.S. (Animal Sciences Dept., Agricultural Faculty, Guilan University)
  • Received : 2004.09.22
  • Accepted : 2005.03.07
  • Published : 2005.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

Genetic parameters for first lactation milk production based on test day (TD) records of 56319 Iranian Holstein cows from 655 herds that first calved between 1991 and 2001 were estimated with restricted maximum likelihood method under an Animal model. Traits analyzed were milk yield and milk fat percentage. Heritability for TD records were highest in second half of the lactation, ranging from 0.11 to 0.19 for milk yield and 0.038 to 0.094 for milk fat percentage respectively. Estimates for lactation records for these traits were 0.24 and 0.26 respectively. Genetic correlations between individual TD records were high for consecutive TD records (>0.9) and decreased as the interval between tests increased. Estimates of genetic correlations of TD yield with corresponding lactation yield were highest (0.78 to 0.86) for mid-lactation (TD3 to TD8). Phenotypic correlations were lower than corresponding genetic correlations, but both followed the same pattern. For milk fat percentage no clear pattern was found. Results of this study suggested that TD yields especially in mid-lactation may be used for genetic evaluation instead of 305-day yield.

Keywords

References

  1. Auran, T. 1976. Studies on monthly and cumulative monthly milk yield records. III. Estimates of genetic parameters. Acta. Agric. Scand. 26:3-9.
  2. Baffour-Awuah, O., S. Brotherstone and W. G. Hill. 1996. Genetic analysis of test day production in second lactation of British Holstein-Freisian cows. Arch. Tierz. 39:213-226.
  3. Choi, J. G., K. J. Jeon, K. J. Na, C. W. Lee, J. B. Kim and C. Lee. 2003. Trends in heritability of daily milk yield by period in Korean cattle. Asian-Aust. J. Anim. Sci. 16:1239-1241.
  4. Danell, B. 1982. Studies on lactation yield and individual test-day yields of Swedish dairy cows. II. Estimates of genetic and phenotypic parameters. Acta. Agric. Scand. 32:83-92.
  5. Farhangfar, H., P. Rowlinson and M. B. Willis. 2001. Genetic correlations between 305-day and monthly test day milk yield in primparous Iranian Holstein. In 2001 Proceeding of British Society of Animal Science. p. 219.
  6. Jamrozik, J. and L. R. Schaeffer. 1997. Estimation of genetic parameters for a test day model with random regression for yield traits of first lactation Holsteins. J. Dairy Sci. 80:762-770.
  7. Jamrozik, J., L. R. Schaeffer and J. C. M. Dekkers. 1997. Genetic evaluation of dairy cattle using test day yields and random regression Model. J. Dairy Sci. 80:1217-1226.
  8. Kettunen, A. and E. A. Mantysaari. 1996. Estimation of genetic parameters for test day milk production at different stage of lactation of Finnish Ayrshire heifers. Agric. Food Sci. 5:185-192.
  9. Kettunen, A., E. A. Mantysaari, I. Stranden, J. Poso and M. Lidauer. 1998. Estimation of genetic parameters for first lactation test day milk production using random regression models. In 6th World Congress on Genetics Applied to Livestock Production, Armidale, Australia. 23:307.
  10. Lee, D. H. and K. J. Han. 2004. Genetic relationship between milk production, calving ease, days open at first parity in Holstein cows. Asian-Aust. J. Anim. Sci. 17:153-158.
  11. Machado, S. G., M. A. R. De freits and C. H. Gadini. 1998. Genetic parameters of test day yields of holstein cows. In 6th World Congress on Genetics Applied to Livestock Production, Armidale, Australia. 23:427.
  12. Meyer, K., H. U. Grasser and K. Hammond. 1989. Estimates of genetic pararmeters for first lactation test day production of Australian Black and White cows. Livest. Prod. Sci. 21:177-199.
  13. Moradi Share babak, M. 2001. Estimation of variance components of Holstein cows’ production traits using test day records. In 1st Proceeding of Iranian Seminar on Genetics and Breeding of Animal and Poultry and Aquatic. pp. 1-5.
  14. Pander, B. L. and W. G. Hill. 1993. Genetic evaluation of lactation yield from test day records on incomplete lactation. Livest. Prod. Sci. 37:23-36.
  15. Ptak, E. and L. R. Schaeffer. 1993. Use of test day yields for genetic evaluation of dairy sire and cows. Livest. Prod. Sci. 34:23-34.
  16. Strabel, T. and I. Misztal. 1999. genetic parameters for first and second lactation milk yield of Polish Black and White cattle with random regression test-day models. J. Dairy Sci. 82:2805-2810.
  17. Swalve, H. H. 1995a. Test day model in the analysis of dairy production data-a review. Arch. Tierz. 38:591-612.
  18. Swalve, H. H. 1995b. The effect of test day models on the estimating of genetic parameters and breeding value for dairy yield traits. J. Dairy Sci. 78:929-939.
  19. Swalve, H. H. 1998. Use of test day records for genetic evaluation. In 6th World Congress on Genetics Applied to Livestock Production, Armidale, Australia, 23:295.
  20. Van der werf, J. H. J. and W. De boer. 1989. Influence of non additive effects on estimation of genetic parameters in dairy cattle. J. Dairy Sci. 72:2606-2614.
  21. Van der werf, J. H. J., M. E. Goddard and K. Meyer. 1998. The use of covariance function of milk production based on test day records. J. Dairy Sci. 81:3300-3308.
  22. Wilmink, J. B. M. 1988. Effects of incomplete records on genetic parameters among cumulative yields in first lactation and on extension of part lactations. Livest. Prod. Sci. 18:19-34.

Cited by

  1. Modeling lactation curves and estimation of genetic parameters in Holstein cows using multiple-trait random regression models vol.85, pp.11, 2014, https://doi.org/10.1111/asj.12185
  2. Genetic Analysis of Milk Yield in First-Lactation Holstein Friesian in Ethiopia: A Lactation Average vs Random Regression Test-Day Model Analysis vol.28, pp.9, 2015, https://doi.org/10.5713/ajas.15.0173
  3. Dairy cattle industry and genetic improvement programs in Thailand vol.57, pp.7, 2017, https://doi.org/10.1071/AN16454
  4. Relationship between the Polymorphisms of 5' Regulation Region of Prolactin Gene and Milk Traits in Chinese Holstein Dairy Cows vol.19, pp.4, 2005, https://doi.org/10.5713/ajas.2006.459
  5. Prediction of Future Milk Yield with Random Regression Model Using Test-day Records in Holstein Cows vol.19, pp.7, 2005, https://doi.org/10.5713/ajas.2006.915
  6. Genetic Evaluation and Calculating Daughter Yield Deviation of Bulls in Iranian Holstein Cattle for Milk and Fat Yields vol.22, pp.5, 2005, https://doi.org/10.5713/ajas.2009.80378
  7. Random Regression Model for Genetic Evaluation and Early Selection in the Iranian Holstein Population vol.11, pp.12, 2005, https://doi.org/10.3390/ani11123492