Volume 8, Issue 16 (11-2017)                   rap 2017, 8(16): 183-191 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Investigation of Factors Affecting Culling of Holstein Dairy Cows in Northwest of Iran. rap. 2017; 8 (16) :183-191
URL: http://rap.sanru.ac.ir/article-1-821-en.html
Abstract:   (1687 Views)
In this study the causes of culling in 9 industrial dairy farms in northwest of Iran between 2008 to 2013 were investigated. The impact of various factors on culling was analyzed using the GLIMIX procedure of SAS 9.2. The results showed that from 5404 dairy cows culled, voluntary and involuntary culling rate were 24.8% and 75.2 % respectively. Infertility and metabolic disorders were the most frequent causes of culling with 17.7%, and 16.8% respectively. The voluntary culling of female calves and heifers (before calving) was extremely high (60.55%) and for the heifers after calving was extremely low (5.06%). Almost 25.49% of culling occurred during the first 50 days after calving which was mostly involuntarily. The effect of independent variables including calving type (abortion, stillbirth, natural calving), dystocia, open days, lactation number, length of dry period and calving season on culling rate were all significant (pr<0.05). The cow with easy calving, low open days and moderate dry period (41-70 days) had the least culling rates. The results showed that the high frequency of involuntary culling of cattle led to the reduced longevity, selection intensity and increased the costs for dairy cattle industry.
Full-Text [PDF 549 kb]   (1653 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/10/30 | Accepted: 2017/10/30 | Published: 2017/10/30

1. Ahlman, T., B. Berglund, L. Rydhmer and E. Strandberg. 2011. Culling reasons in organic and conventional dairy herds and genotype by environment interaction for longevity. Journal of Dairy Science, 94(3): 1568-1575. [DOI:10.3168/jds.2010-3483]
2. Andrieu, S. and H. Warren. 2009. Ruminant formula for the future: nutrition or pathology? Elevating performance and health: Wageningen Academic Pub. [DOI:10.3920/978-90-8686-682-3]
3. Ansari-Lari, M., M. Mohebbi-Fani and A. Rowshan-Ghasrodashti. 2012. Causes of culling in dairy cows and its relation to age at culling and interval from calving in Shiraz Southern Iran. Veterinary Research Forum, 3(4): 233-237.
4. Azizzadeh, M. 2012. Characterisation and pattern of culling in Holstein-Friesian dairy herds in Khorasan Razavi Province Northeast of Iran. Veterinary Research Forum, 2(4): 254-258.
5. Bar, D., Y.T. Gröhn, G. Bennett, R.N. González, J.A. Hertl, H.F. Schulte, L.W. Tauer, F.L. Welcome and Y.H. Schukken. 2008. Effects of repeated episodes of generic clinical mastitis on mortality and live culling in dairy cows. Journal of Dairy Science, 91: 2205-2214. [DOI:10.3168/jds.2007-0573]
6. De Vries, A., J. Olson and P. Pinedo. 2010. Reproductive risk factors for culling and productive life in large dairy herds in the eastern United States between 2001 and 2006. Journal of Dairy Science, 93(2): 613-623. [DOI:10.3168/jds.2009-2573]
7. Dentine, M., B. McDaniel and H. Norman. 1987. Comparison of culling rates, reasons for disposal and yields for registered and grade Holstein cattle. Journal of Dairy Science, 70(12): 2616-2622. [DOI:10.3168/jds.S0022-0302(87)80331-4]
8. Dohoo, I., W. Martin and H. Stryhn. 2003. Veterinary Epidemiologic Research. Atlantic Veterinary College, Charlottetown, PE, Canada.
9. Esslemont, R. and M. Kossaibati. 1997. Culling in 50 dairy herds in England. The Veterinary Record, 140(2): 36-39. [DOI:10.1136/vr.140.2.36]
10. Less, P. and J. Pinter. 1995. Pinter Visual FoxPro Programming Handbook 4th. McGraw-Hill, Inc. New York, NY, USA. ISBN: 0070501807.
11. Fetrow, J., K. Nordlund and H. Norman. 2006. Culling: Nomenclature, Definitions, and Recommendations. Journal of Dairy Science, 89(6): 1896-1905. [DOI:10.3168/jds.S0022-0302(06)72257-3]
12. Gröhn, Y., S. Eicker, V. Ducrocq and J. Hertl. 1998. Effect of diseases on the culling of Holstein dairy cows in New York State. Journal of dairy science, 81(4): 966-978. [DOI:10.3168/jds.S0022-0302(98)75657-7]
13. Haile-Mariam, M., P. Bowman and M. Goddard. 2003. Genetic and environmental relationship among calving interval survival persistency of milk yield and somatic cell count in dairy cattle. Livestock Production Science, 80(3): 189-200. [DOI:10.1016/S0301-6226(02)00188-4]
14. Hardeng, F. and V. Edge. 2001. Mastitis, ketosis, and milk fever in 31 organic and 93 conventional Norwegian dairy herds. Journal of Dairy Science, 84(12): 2673-2679. [DOI:10.3168/jds.S0022-0302(01)74721-2]
15. Heravi Mosavi, A., M. Daneshmesgaran and T. Vafa. 2014. Investigation Of factor influence on reproduction function in Holstein Dairy cows. Journal of Ruminant Research, 1(2): 11-24 (In Persian).
16. Heravi Moussavi, A. 2008. Days in Milk at Culling in Holstein Dairy Cows. Journal of Animal and Veternary Advances, 7(1): 89-93
17. Kalantari, A., H. Mehrabani-Yeganeh, M. Moradi, A. Sanders and A. De Vries. 2010. Determining the optimum replacement policy for Holstein dairy herds in Iran. Journal of Dairy Science, 93(5): 2262-2270. [DOI:10.3168/jds.2009-2765]
18. Mohammadi, G.R. and A. Sedighi. 2009. Reasons for culling of Holstein dairy cows in Neyshabur area in northeastern Iran. Iranian Journal of Veterinary Research, 10(3): 278-282.
19. Moussavi, A.H. 2008. Influences of milk yield and fertility traits in the first lactation on the length of productive life of Holstein dairy cows in Iran. Research Journal of Biological Sciences, 3(9): 1022-1027.
20. Rajala-Schultz, P. and Y. Gröhn. 1999. Culling of dairy cows. Part I. Effects of diseases on culling in Finnish Ayrshire cows. Preventive Veterinary Medicine, 41(2): 195-208. [DOI:10.1016/S0167-5877(99)00046-X]
21. Rajala-Schultz, P. and Y. Gröhn. 1999. Culling of dairy cows. Part II. Effects of diseases and reproductive performance on culling in Finnish Ayrshire cows. Preventive Veterinary Medicine, 41(4): 279-294. [DOI:10.1016/S0167-5877(99)00045-8]
22. SAS Institute Inc Cary, NC. 2008. SAS/STAT® 9.2. User's Guide.
23. Shahmoradi, M., H. Amanlou and A. Nazari. 2008. Investigation of Culling Reasons in Holstein Commercial Dairy Herds in Zanjan Province. Journal of Agriculture Science and Natural Resource, 15(4): 45-57 (In Persian).
24. Smith, J., L. Ely and A. Chapa. 2000. Effect of region, herd size, and milk production on reasons cows leave the herd. Journal of Dairy Science, 83(12): 2980-2987. [DOI:10.3168/jds.S0022-0302(00)75198-8]
25. Teymuri, A., M. Eghbal and F. Badiei Mogadam. 2012. Investigation of the culling reasons of dairy cows in Tehran Province's dairy farms. Animal Sciences Journal (Pajouhesh & Sazandegi), 95: 41-48 (In Persian).

Add your comments about this article : Your username or Email:

© 2020 All Rights Reserved | Research On Animal Production(Scientific and Research)

Designed & Developed by : Yektaweb