G van Schaik

Summary

Affiliation: Cornell University
Country: USA

Publications

  1. ncbi request reprint [Risk and economics of disease introduction to dairy farms]
    G van Schaik
    Wageningen Universiteit, 16 juni 2000 Gerdien van Schaik, Agrarische Bedrijfseconomie, Wageningen Universiteit, Hollandseweg 1, 6706 KN Wageningen
    Tijdschr Diergeneeskd 126:414-8. 2001
  2. ncbi request reprint An economic model for on-farm decision support of management to prevent infectious disease introduction into dairy farms
    G van Schaik
    Farm Management Group, Wageningen University, Hollandseweg 1, 6706 KN, Wageningen, The Netherlands
    Prev Vet Med 51:289-305. 2001
  3. ncbi request reprint Trends in somatic cell counts, bacterial counts, and antibiotic residue violations in New York State during 1999-2000
    G van Schaik
    Department of Population Medicine and Diagnostic Science, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    J Dairy Sci 85:782-9. 2002
  4. ncbi request reprint Probability of and risk factors for introduction of infectious diseases into Dutch SPF dairy farms: a cohort study
    G van Schaik
    Farm Management Group, Wageningen University, Wageningen, The Netherlands
    Prev Vet Med 54:279-89. 2002
  5. ncbi request reprint Risk factors for introduction of BHV1 into BHV1-free Dutch dairy farms: a case-control study
    G van Schaik
    Farm Management Group, Wageningen University, The Netherlands
    Vet Q 23:71-6. 2001
  6. doi request reprint The effect of a national mastitis control program on the attitudes, knowledge, and behavior of farmers in the Netherlands
    J Jansen
    Communication Science, Wageningen University, Wageningen, The Netherlands
    J Dairy Sci 93:5737-47. 2010
  7. ncbi request reprint The effect of becoming BVDV-free on fertility and udder health in Dutch dairy herds
    I M G A Berends
    Quantitative Veterinary Epidemiology Group, Wageningen Institute of Animal Sciences, Wageningen University, Wageningen, The Netherlands
    Prev Vet Med 84:48-60. 2008
  8. ncbi request reprint Prevalence estimates for paratuberculosis adjusted for test variability using Bayesian analysis
    G van Schaik
    Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    Prev Vet Med 60:281-95. 2003
  9. doi request reprint Explaining mastitis incidence in Dutch dairy farming: the influence of farmers' attitudes and behaviour
    J Jansen
    Department of Communication Science, Wageningen University, Wageningen, The Netherlands
    Prev Vet Med 92:210-23. 2009
  10. ncbi request reprint Transition models to assess risk factors for new and persistent trypanosome infections in cattle-analysis of longitudinal data from the Ghibe Valley, southwest Ethiopia
    Y H Schukken
    Department of Population Medicine and Diagnostic Sciences, S3119 Schurmann Hall, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    J Parasitol 90:1279-87. 2004

Detail Information

Publications18

  1. ncbi request reprint [Risk and economics of disease introduction to dairy farms]
    G van Schaik
    Wageningen Universiteit, 16 juni 2000 Gerdien van Schaik, Agrarische Bedrijfseconomie, Wageningen Universiteit, Hollandseweg 1, 6706 KN Wageningen
    Tijdschr Diergeneeskd 126:414-8. 2001
    ....
  2. ncbi request reprint An economic model for on-farm decision support of management to prevent infectious disease introduction into dairy farms
    G van Schaik
    Farm Management Group, Wageningen University, Hollandseweg 1, 6706 KN, Wageningen, The Netherlands
    Prev Vet Med 51:289-305. 2001
    ....
  3. ncbi request reprint Trends in somatic cell counts, bacterial counts, and antibiotic residue violations in New York State during 1999-2000
    G van Schaik
    Department of Population Medicine and Diagnostic Science, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    J Dairy Sci 85:782-9. 2002
    ....
  4. ncbi request reprint Probability of and risk factors for introduction of infectious diseases into Dutch SPF dairy farms: a cohort study
    G van Schaik
    Farm Management Group, Wageningen University, Wageningen, The Netherlands
    Prev Vet Med 54:279-89. 2002
    ..Direct animal contacts with other cattle should be avoided and professional visitors should be instructed to wear protective clothing before handling cattle...
  5. ncbi request reprint Risk factors for introduction of BHV1 into BHV1-free Dutch dairy farms: a case-control study
    G van Schaik
    Farm Management Group, Wageningen University, The Netherlands
    Vet Q 23:71-6. 2001
    ..The study showed that dairy farms should prevent cattle from escaping or mingling with other cattle and that professional visitors should always wear protective farm clothing...
  6. doi request reprint The effect of a national mastitis control program on the attitudes, knowledge, and behavior of farmers in the Netherlands
    J Jansen
    Communication Science, Wageningen University, Wageningen, The Netherlands
    J Dairy Sci 93:5737-47. 2010
    ..The results showed that a national mastitis control program affected the attitudes, knowledge, and behavior of farmers regarding mastitis and could contribute to udder health improvement in the long term...
  7. ncbi request reprint The effect of becoming BVDV-free on fertility and udder health in Dutch dairy herds
    I M G A Berends
    Quantitative Veterinary Epidemiology Group, Wageningen Institute of Animal Sciences, Wageningen University, Wageningen, The Netherlands
    Prev Vet Med 84:48-60. 2008
    ..Interestingly, both significant variables, being abortions and mastitis incidence, are parameters that are more difficult to influence by the farmer than the other parameters (e.g. calving interval)...
  8. ncbi request reprint Prevalence estimates for paratuberculosis adjusted for test variability using Bayesian analysis
    G van Schaik
    Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    Prev Vet Med 60:281-95. 2003
    ..In future prevalence studies for MAP, sample size calculations should be based on a very low cow-level prevalence. Approximately 50 and 90% of the herds in the current study had an estimated cow-level TP below 4 and 10%, respectively...
  9. doi request reprint Explaining mastitis incidence in Dutch dairy farming: the influence of farmers' attitudes and behaviour
    J Jansen
    Department of Communication Science, Wageningen University, Wageningen, The Netherlands
    Prev Vet Med 92:210-23. 2009
    ....
  10. ncbi request reprint Transition models to assess risk factors for new and persistent trypanosome infections in cattle-analysis of longitudinal data from the Ghibe Valley, southwest Ethiopia
    Y H Schukken
    Department of Population Medicine and Diagnostic Sciences, S3119 Schurmann Hall, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    J Parasitol 90:1279-87. 2004
    ..The second was to highlight different patterns in the effects of certain factors on new and persistent trypanosome infections...
  11. doi request reprint Invited review: associations between variables of routine herd data and dairy cattle welfare indicators
    M de Vries
    Animal Production Systems Group, Wageningen University, 6709 PG Wageningen, The Netherlands
    J Dairy Sci 94:3213-28. 2011
    ..Cross-sectional studies using integrated welfare scores at the farm level are needed to more accurately determine the potential of VRHD to estimate levels of animal welfare on dairy farms...
  12. ncbi request reprint Pooled fecal culture sampling for Mycobacterium avium subsp. paratuberculosis at different herd sizes and prevalence
    G van Schaik
    Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    J Vet Diagn Invest 15:233-41. 2003
    ..The optimal pool size increased with increasing herd size and varied from 3 for a 500-cow herd with a low prevalence to 5 for a 1,000-cow herd with a high prevalence...
  13. ncbi request reprint Intra-class correlation attributable to claw trimmers scoring common hind-claw disorders in Dutch dairy herds
    M Holzhauer
    GD Ltd, P O Box 9, 7400 AA Deventer, The Netherlands
    Prev Vet Med 75:47-55. 2006
    ..Based on these results, we conclude that for estimating measures of frequencies for different claw disorders, uniformity in recording certain diagnoses becomes an issue to consider when involving more than one observer...
  14. ncbi request reprint Bayesian analysis to validate a commercial ELISA to detect paratuberculosis in dairy herds of southern Chile
    G van Schaik
    Instituto de Medicina Preventiva, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
    Prev Vet Med 79:59-69. 2007
    ..Therefore, Bayesian analysis was the preferred method for Map that lacks a gold-standard and usually has low cow-level prevalence...
  15. ncbi request reprint Effects of different intervention strategies on the incidence of papillomatous digital dermatitis in dairy cows
    M Holzhauer
    GD Ltd, PO Box 9, 7400 AA, Deventer, The Netherlands
    Vet Rec 162:41-6. 2008
    ....
  16. ncbi request reprint [Udder health: the influence of BVD-free status]
    J Muskens
    Tijdschr Diergeneeskd 133:562-5. 2008
    ..6%; p < 0.05)...
  17. ncbi request reprint Risk factors for bulk milk somatic cell counts and total bacterial counts in smallholder dairy farms in the 10th region of Chile
    G van Schaik
    Instituto de Medicina Preventiva, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
    Prev Vet Med 67:1-17. 2005
    ..A herd that complied with all of these management factors had a BMSCC of approximately 46,166 cells/ml, whereas a herd that did not comply with any of the management practices above had a mean BMSCC of 2 x 10(6)cells/ml...
  18. ncbi request reprint Effect of grazing pasture with a low selenium content on the concentrations of triiodothyronine and thyroxine in serum, and GSH-Px activity in erythrocytes in cows in Chile
    P A Contreras
    Instituto de Ciencias Clinicas Veterinarias, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
    N Z Vet J 53:77-80. 2005
    ..To determine the effect of grazing pasture that had a low selenium (Se) concentration on serum concentrations of triiodothyronine (T3) and thyroxine (T4), and erythrocyte glutathione peroxidase (GSH-Px) activity in dairy cows...