Animal Bioscience

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

DOI QR Code

The effect of extended lactation on parameters of Wood's model of lactation curve in dairy Simmental cows

  • Kopec, Tomas (Department of Animal Breeding, Mendel University in Brno (FA)) ;
  • Chladek, Gustav (Department of Animal Breeding, Mendel University in Brno (FA)) ;
  • Falta, Daniel (Department of Animal Breeding, Mendel University in Brno (FA)) ;
  • Kucera, Josef (Czech Moravian Breeders Association) ;
  • Vecera, Milan (Department of Animal Breeding, Mendel University in Brno (FA)) ;
  • Hanus, Oto (Dairy Research Institute Ltd.)
  • Received : 2020.05.18
  • Accepted : 2020.09.13
  • Published : 2021.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

Objective: This study was focused on the estimation of parameters of Wood's model and description of the lactation curve using the cows which were lactated over 24 months on the first lactation. Methods: The database included 1,333 pure-bred dairy Simmental primiparous cows which lactated for 24 months (732 days). The initial dataset entering the procedure of assessment of parameters of Wood's function included 35,826 milk yield records. Milk yield was recorded throughout lactation, with the earliest record taken on day 6 and the latest on day 1,348 of lactation. This dataset was used for the assessment of parameters a, b, c of Wood's model using the non-linear statistical procedure. These parameters were estimated for different length of lactation. The assessed parameters were used for calculation of some characteristics of lactation curves. Results: The lowest value of a parameter (15.2317) of Wood's model of lactation curve was found out in lactations up to 305 days long, contrary to b and c parameters which were highest in those lactations (0.1029 and 0.0015, respectively). The maximum value of a parameter (17.4329) was found out in lactations up to 640 days long, unlike b and c parameters which were minimal in those lactations (0.0603 and 0.0010, respectively). Conclusion: It can be concluded that the parameters of Wood's model and the shape of lactation curve are changing with the growing number of milk yield records. Also, the assessed parameters revealed a significant milk production potential after 305 days of lactation.

Keywords

References

  1. Atashi H, Asaadi A. Association between gestation length and lactation performance, lactation curve, calf birth weight and dystocia in Holstein dairy cows in Iran. Anim Reprod 2019;16:846-52. https://doi.org/10.21451/1984-3143-ar2019-0005
  2. Harder I, Stamer E, Junge W, Thaller G. Lactation curves and model evaluation for feed intake and energy balance in dairy cows. J Dairy Sci 2019;102:7204-16. https://doi.org/10.3168/jds.2018-15300
  3. Poppe M, Veerkamp RF, van Pelt ML, Mulder HA. Exploration of variance, autocorrelation, and skewness of deviations from lactation curves as resilience indicators for breeding. J Dairy Sci 2020;103:1667-84. https://doi.org/10.3168/jds.2019-17290
  4. Lee SH, Dang CG, Choy YH, et al. Comparison of genome-wide association and genomic prediction methods for milk production traits in Korean Holstein cattle. Asian-Australas J Anim Sci 2019;32:913-21. https://doi.org/10.5713/ajas.18.0847
  5. Sitkowska B, Kolenda M, Piwczynski D. Comparison of the fit of automatic milking system and test-day records with the use of lactation curves. Asian-Australas J Anim Sci 2020;33:408-15. https://doi.org/10.5713/ajas.19.0190
  6. Ranaraja U, Cho KH, Park MN, Kim SD, Lee SH, Do CH. Genetic parameter estimation for milk β-hydroxybutyrate and acetone in early lactation and its association with fat to protein ratio and energy balance in Korean Holstein cattle. Asian-Australas J Anim Sci 2018;31:798-803. https://doi.org/10.5713/ajas.17.0443
  7. Grossman M, Koops WJ. Modeling extended lactation curves of dairy cattle: a biological basis for the multiphasic approach. J Dairy Sci 2003;86:988-98. https://doi.org/10.3168/jds.S0022-0302(03)73682-0
  8. Knight CH. Extended lactation: turning theory into reality. Adv Dairy Technol 2005;17:113-23.
  9. Dematawewa CMB, Pearson RE, VanRaden PM. Modeling extended lactations of Holsteins. J Dairy Sci 2007;90:3924-36. https://doi.org/10.3168/jds.2006-790
  10. Haile-Mariam M, Goddard ME. Genetic and phenotypic parameters of lactations longer than 305 days (extended lactations). Animal 2008;2:325-35. https://doi.org/10.1017/S1751731107001425
  11. Steri R, Dimauro C, Canavesi F, Nicolazzi EL, Macciotta NPP. Analysis of lactation shapes in extended lactations. Animal 2012;6:1572-82. https://doi.org/10.1017/S1751731112000766
  12. Wood PDP. Algebraic model of the lactation curve in cattle. Nature 1967;216:164-5. https://doi.org/10.1038/216164a0
  13. Trinacty J, Babak V, Cermak V, Sommerova H. Form of the lactation curve of dairy cows of different breeds. Sb Ved Pr VUVZ Pohorelice 1990;23:15-23.
  14. Cankaya S, Unalan A, Soydan E. Selection of a mathematical model to describe the lactation curves of Jersey cattle. Arch Anim Breed 2011;54:27-35. https://doi.org/10.5194/aab-54-27-2011
  15. Bilgin OC, Esenbuga N, Davis ME. Comparison of models for describing the lactation curve of Awassi, Morkaraman and Tushin sheep. Arch Anim Breed 2010;53:447-56. https://doi.org/10.5194/aab-53-447-2010
  16. Boujenane I, Hilal B. Genetic and non genetic effects for lactation curve traits in Holstein-Friesian cows. Arch Anim Breed 2012;55:450-7. https://doi.org/10.5194/aab-55-450-2012
  17. Farhangfar H, Naeimipour H. Phenotypic study of lactation curve in Iranian Holsteins. J Agric Sci Technol 2007;9:279-86.
  18. Abdelsayed M, Thomson PC, Raadsma HW. Characteristics of extended lactation and persistency in Australian dairy cows. In: Proceedings of the Twentieth Conference of the Association for the Advancement of Animal Breeding and Genetics; 2013 Oct 20-23: Napier, New Zealand. pp. 57-61.
  19. Kocak O, Ekiz B. Comparison of different lactation curve models in Holstein cows raised on a farm in the south-eastern Anatolia region. Arch Anim Breed 2008;51:329-37. https://doi.org/10.5194/aab-51-329-2008
  20. Kopec T, Chladek G, Kucera J, Falta D, Hanus O, Roubal P. The effect of the calving season on the Wood's model parameters and characteristics of the lactation curve in Czech Fleckvieh cows. Arch Anim Breed 2013;56:808-15. https://doi.org/10.7482/0003-9438-56-080
  21. Macciotta NPP, Vicario D, Cappio-Borlino A. Detection of different shapes of lactation curve for milk yield in dairy cattle by empirical mathematical models. J Dairy Sci 2005;88:1178-91. https://doi.org/10.3168/jds.S0022-0302(05)72784-3
  22. Zamani P, Miraei-Ashtiani SR, Alipour D, et al. Statistical analysis of some factors affecting crude protein balance in lactating dairy cows. J Agric Sci Technol 2011;13:1033-43.
  23. Pollott GE. Short communication: do Holstein lactations of varied lengths have different characteristics? J Dairy Sci 2011;94:6173-80. https://doi.org/10.3168/jds.2011-4467
  24. Vargas B, Koops WJ, Herrero M, Van Arendonk JAM. Modeling extended lactations of dairy cows. J Dairy Sci 2000;83:1371-80. https://doi.org/10.3168/jds.S0022-0302(00)75005-3
  25. Wall E, Coffey MP, Pollott GE. The effect of lactation length on greenhouse gas emissions from the national dairy herd. Animal 2012;6:1857-67. https://doi.org/10.1017/S1751731112000936

Cited by

  1. Modelling Extended Lactations in Polish Holstein-Friesian Cows vol.11, pp.8, 2021, https://doi.org/10.3390/ani11082176