Fertility monitoring in dairy herds;Fruchtbarkeitsmonitoring in Milchviehbetrieben

Zuchtungskunde

Volumn 79, Issue 4, 2007, Pages 275-286

  Niehoff, Donata ^a   Tolle K H ^b   Krieter, J ^c  

^a FEDERAL RESEARCH INSTITUTE FOR ANIMAL HEALTH   (Germany)

^b Landwirtschaftskammer Schleswig Holstein ^*  (Germany)

^c UNIVERSITY OF KIEL   (Germany)

Author keywords

Colving interval; Controll charts; Dairy herds; Fertility monitoring; Repeat breeding days

Indexed keywords

EID: 34547419163     PISSN: 00445401     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (16)

1. ARBEL, R., BIGUN, Y. EZRA, E. STURMAN H. and HOJMAN, D. (2001): The effect of extended calving intervals in high lactating cows on milk production and profitability. J. Dairy Sci. 84, 600-608.
2. BOWER, K. M. (2000): Using exponentially weighted moving average (EWMA) charts. Asia Pacific Process Engineer. October 2000 http://www.minitab. com/resources/articles/UsingEWMACharts.pdf. Datum des Zugriffs: 13.12.2005.
3. BRITT, J.H. (1985): Enhanced reproduction and its economic implications. J. Dairy Sci. 68, 1585-1592.
4. DE VRIES, A. (2001): Statistical process Control-Charts applied to dairy herd reproduction. http://www.animal.ufl.edu. Datum des Zugriffs : 16.07.2005.
5. DE VRIES, A. und CONLIN, B. J. (2003): Design and performance of statistical process control charts applied to estrous detection efficiency. J. Dairy Sci. 86, 1970-1984.
6. ENGLER; J., TÖLLE, K.-H., TIMM, H.H., HOHLS E. und KRIETER, J. (2004): Control-Charts zur Leistungskontrolle in der Ferkelerzeugung. Vortragstagung der DGfZ und GfT am 29./30. September, Rostock.
7. GROENENDAAL, H., GALLIGAN, D.T. MULDER, H.A. (2004): An economic spreadsheet model to determine optimal breeding and replacement decisions for dairy cattle. J. Dairy Sci. 87, 2146-2157.
8. KLEIN, M. (2000): Two alternatives to the Shewhart Control Chart. J. Qual. Technol. 32, 427-431.
9. MARSHALL, C., BEST, N., BOTTLE, A. and AYLIN, P. (2004): Statistical issues in the pro spective monitoring of health outcomes across multiple units. J. Royal Statist. Soc. 167, (3), 541-559.
10. MONTGOMERY, D. C. (1997) : Introduction to Statistical Quality Control. 3. Auflage, John Wiley Sons Inc., New York.
11. PIGEON, J. Introduction to Statistical Quality Control, 4th Edition. http://www47.homepage.villanova.edu/joseph.pigeon/pp_files/chap08.ppt. Datum des Zugriffs: 13.12. 2005.
12. PLAIZIER, J.C.B., KING, G.J. DEKKERS J.C.M. and LISSEMORE, K. (1997): Estimation of economic values for indices for reproductive performance in dairy herds using computer simulation. J. Dairy Sci. 80, 2775-2783.
13. RENEAU, J. K. (2000): Process Control: timely feedback for timely milk production at the farm. National Mastitis Council Annual Meeting Proceedings. http://www.nmconline.org/articles/prcscntrl.pdf. Datum des Zugriffs: 21.10.2005.
14. RICHTER, F. (1999): Vergleichende Untersuchung zur Anwendung von drei Computer-programmen für die zuchthygienische Herdenbestandsbetreuung am Beispiel der Daten eines Milchviehbetriebes. Diss. Freie Universität Berlin.
15. WEIGEL, K. A. (2004): Improving the reproductive efficiency of dairy cattle through genetic selection. J. Dairy Sci. 87 (E.Suppl.) E86-E92.
16. WEIHS, C und JESSENBERGER, J. (1999): Statistische Methoden zur Qualitätssicherung und -optimierung in der Industrie. Wiley-VCH, Weinheim.