Pregnancy rates and milk production in natural service and artificially inseminated dairy herds in Florida and Georgia

Journal of Dairy Science

Volumn 88, Issue 3, 2005, Pages 948-956

  De Vries, A ^a   Steenholdt, C ^a,b   Risco, C A ^a  

^a UNIVERSITY OF FLORIDA   (United States)

^b High Plains Veterinarians Outlet   (United States)

Author keywords

Artificial insemination; Milk production; Natural service; Pregnancy rate

Indexed keywords

ANIMAL; ANIMAL DISEASE; ARTICLE; ARTIFICIAL INSEMINATION; BREEDING; CATTLE; FEMALE; LACTATION; MALE; METHODOLOGY; MILK; PHYSIOLOGY; PREGNANCY; PREGNANCY RATE; SEASON; SECRETION; UNITED STATES;

ANIMALS; BREEDING; CATTLE; FEMALE; FLORIDA; GEORGIA; INSEMINATION, ARTIFICIAL; LACTATION; MALE; MILK; PREGNANCY; PREGNANCY RATE; PREGNANCY, ANIMAL; SEASONS;

EID: 22144453956     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(05)72762-4     Document Type: Article

References (19)

1. Badinga, L., R. J. Collier, W. W. Thatcher, and C. J. Wilcox. 1985. Effects of climatic and management factors on conception rate of dairy cattle in subtropical environments. J. Dairy Sci. 68:78-85.
2. Cassell, B. G., S. M. Jobst, M. L. McGuillard, and R. E. Pearson. 2002. Evaluating sire selection practices using lifetime net income functions. J. Dairy Sci. 85:3492-3498.
3. de Vries, A., R. Giesy, L. Ely, A. de Araujo, A. Andreasen, B. Broaddus, S. Eubanks, D. Mayo, P. Miller, T. Seawright, and C. Vann. 2003. Dairy Business Analysis Project: 2001 Financial Summary. Ext. Publ. AN136. Univ. Florida, Gainesville. Online. Available http://edis.ifas.ufl.edu/AN136. Accessed July 24, 2004.
4. Dohoo, I., W. Martin, and H. Stryhn. 2003. Veterinary Epidemiologic Research. AVC Inc., Charlottetown, PEI, Canada.
5. Ducrocq, V., and J. Sölkner. 1994. The Survival Kit - a Fortran package for the analysis of survival data. Vol. 22. Pages 51-52 in Proc. 5th World Congr. Genet. Appl. to Livest. Prod., Guelph, ON, Canada.
6. Ferguson, J. D., and D. T. Galligan. 1999. Veterinary Reproductive Programs. Pages 131-137 in Proc. 32nd Annu. Meet. Am. Assoc. Bovine Pract., Nashville, TN.
7. Littell, R. C., P. R. Henry, and C. B. Ammerman. 1998. Statistical analysis of repeated measures data using SAS procedures. J. Anim. Sci. 76:1217-1231.
8. Littell, R. C., G. A. Milliken, W. W. Stroup, and R. D. Wolfinger. 1996. SAS System for Mixed Models. SAS Institute, Cary, NC.
9. National Animal Health Monitoring System. 2002. Part 1: Reference of dairy health and management in the United States. Ctr. Epidemiol. Anim. Health, Fort Collins, CO.
10. Niles, D., C. A. Risco, and M. J. Thatcher. 2002. Seasonal evaluation of artificial insemination and natural service pregnancy rates in dairy herds. Compend. Contin. Educ. Prac. Vet. 24:S44-S48.
11. Oseni, S., I. Misztal, S. Tsuruta, and R. Rekaya. 2003. Seasonality of days open in US Holsteins. J. Dairy Sci. 86:3718-3725.
12. Ott, R. S. 1986. Breeding soundness examination in bulls. Pages 125-136 in Current Therapy of Theriogenology. 2nd ed., D. A. Morrow, ed. W. B. Saunders Co., Philadelphia, PA.
13. Pecsok, S. R., M. L. McGilliard, and R. L. Nebel. 1994. Conception rates: Derivation and estimates for effects of estrus detection on cow profitability. J. Dairy Sci. 77:3008-3015.
14. Plaizier, J. C. B., G. J. King, J. C. M. Dekkers, and K. Lissemore. 1998. Modeling the relationship between reproductive performance and net-revenue in dairy herds. Agric. Sys. 56:305-322.
15. Risco, C. A., F. Moreira, M. DeLorenzo, and W. W. Thatcher. 1998. Timed artificial insemination in dairy cattle - Part II. Compend. Contin. Educ. Prac. Vet. 20:1284-1289.
16. Smith, J. W., L. O. Ely, W. D. Gilson, and W. M. Graves. 2004. Effects of artificial insemination vs. natural service breeding on production and reproduction parameters in dairy herds. Prof. Anim. Sci. 20:185-190.
17. VanRaden, P. M., A. H. Sanders, M. E. Tooker, R. H. Miller, H. D. Norman, M. T. Kuhn, and G. R. Wiggans. 2004. Development of a national genetic evaluation for cow fertility. J. Dairy Sci. 87:2285-2292.
18. Washburn, S. P., W. J. Silvia, C. H. Brown, B. T. McDaniel, and A. J. McAllister. 2002. Trends in reproductive performance in Southeastern Holstein and Jersey DHI herds. J. Dairy Sci. 85:244-251.
19. Williamson, N. B., R. S. Morris, and G. A. Anderson. 1978. Pregnancy rates and nonreturn rates following artificial and natural breeding in dairy herds. Aust. Vet. J. 54:111-120.