The Analysis of Production and Culling Rate With Regard to the Profitability in a Dairy Herd
By:
References
- 1. Adamczyk, K., Zaborski, D., Grzesiak, W., Makulska, J. & Jagusiak, W. (2016). Recognition of culling reasons in Polish dairy cows using data mining methods. Computers and Electronics in Agriculture, 127, 26-37. https://doi.org/10.1016/j.compag.2016.05.011
- 2. Kern, E.L., Cobuci, J.A., Costa, C.N. & Ducrocq, V. (2016). Survival analysis of productive life in Brazilian Holstein using a piecewise Weibull proportional hazard model, Livestock Science, 185, 89-96. https://doi.org/10.1016/j.livsci.2016.01.019
- 3. M’Hamdi, N., Aloulou, R., Bouallegue, M., Brar, S.K. & Hamouda, M.B. (2010). Study on functional longevity of Tunisian Holstein dairy cattle using a Weibull proportional hazard model, Livestock Science, 132 (1-3), 173-176. https://doi.org/10.1016/j.livsci.2010.05.011
- 4. Sharifi, H., Kostoulas, P., Bahonar, A., Bokaie, S., Vodjgani, M., Haghdoost, A.A., Karamouzian, M., Foroushani, A.R. & Leontides, L., Effect of health disorders on the hazard of culling on the first or second lactation in Iranian dairy herds, Preventive Veterinary Medicine, 109 (1-2), 144-147. https://doi.org/10.1016/j.prevetmed.2012.08.017
- 5. Radke, B.R., Lloyd, J.W., Tempelman, R.J., Kaneene, J.B., Black, J.R. & Harsh, S. (2000), Parents’ predicted transmitting abilities are not associated with culling prior to second lactation of Michigan, USA dairy cows, Preventive Veterinary Medicine, 43 (2), 91-102. https://doi.org/10.1016/S0167-5877(99)00087-2
- 6. Nayeri, S., Sargolzaei, M., Abo-Ismail, M.K., Miller, S., Schenkel, F., Moore, S.S. & Stothard, P. (2017). Genome-wide association study for lactation persistency, female fertility, longevity, and lifetime profit index traits in Holstein dairy cattle, Journal of Dairy Science, 100 (2), 1246-1258. DOI: http://dx.doi.org/10.3168/jds.2016-11770
- 7. Holstein Association USA (2017). Genetic Evaluations for Productive Life, Somatic Cell Score and Net Merit Dollars, from http://www.holsteinusa.com/genetic_evaluations/ss_Gen_Eval_for_PL.html
- 8. Sewalem, A., Miglior, F., Kistemaker, G.J., Sullivan, P. & Van Doormaal, B.J. (2008), Relationship between reproduction traits and functional longevity in Canadian Dairy Cattle, Journal of Dairy Science, 91 (4), 1660-1668. DOI:10.3168/jds.2007-0178
- 9. Beaudeau, F., Ducrocq, V., Fourichon, C. & Seegers, H. (1995). Effect of disease on length of productive life of French Holstein dairy cows assessed by survival analysis, Journal of Dairy Science, 78 (1), 103-117. DOI:10.3168/jds.S0022-0302(95)76621-8
- 10. Gröhn, Y.T., Eicker, S.W., Ducrocq, V. & Hertl, J.A. (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
- 11. Schneider, M.P., Strandberg, E., Emanuelson, U., Grandinson, K. & Roth, A. (2007), The effect of veterinary-treated clinical mastitis and pregnancy status on Culling in Swedish Dairy Cows, Preventive Veterinary Medicine, 80 (2-3), 179-192. https://doi.org/10.1016/j.prevetmed.2007.02.006
- 12. Neerhof, H.J., Madsen, P., Ducrocq, V., Vollema, A.R., Jensen, J. & Korsgaard, I.R. (2000). Relationships between Mastitis and Functional Longevity in Danish Black and White Dairy Cattle Estimated Using Survival Analysis, Journal of Dairy Science, 83 (5), 1064-1071. DOI: 10.3168/jds.S0022-0302(00)74970-8.
DOI: https://doi.org/10.1515/arls-2017-0008 | Journal eISSN: 2543-8050
Language: English
Page range: 48 - 52
Accepted on: Jun 1, 2017
Published on: Jul 12, 2017
Published by: Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania\"
In partnership with: Paradigm Publishing Services
Publication frequency: 1 times per year
Related subjects:
© 2017 József Horváth, Zsanett Tóth, Edit Mikó, published by Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania\"
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.