Accounting for pregnancy diagnosis in predicting days open

Journal of Dairy Science

Volumn 88, Issue 5, 2005, Pages 1873-1877

  Wiggans, G R ^a   Goodling Jr , R C ^a,b  

^a AGRICULTURAL RESEARCH SERVICE   (United States)

^b PENNSYLVANIA STATE UNIVERSITY   (United States)

Author keywords

Days open; Pregnancy confirmation

Indexed keywords

ANIMAL; ANIMAL DISEASE; ARTICLE; BREEDING; CATTLE; FEMALE; FERTILITY; GENETICS; LACTATION; PARITY; PHYSIOLOGY; PREGNANCY; PREGNANCY TEST; REGRESSION ANALYSIS; SENSITIVITY AND SPECIFICITY; TIME;

ANIMALS; BREEDING; CATTLE; FEMALE; FERTILITY; LACTATION; PARITY; PREGNANCY; PREGNANCY TESTS; REGRESSION ANALYSIS; SENSITIVITY AND SPECIFICITY; TIME FACTORS;

EID: 20844459823     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(05)72862-9     Document Type: Article

References (3)

1. Fricke, P. M. 2002. Scanning the future - ultrasonography as a reproductive management tool for dairy cattle. J. Dairy Sci. 85:1918-1926.
2. Kuhn, M. T., P. M. VanRaden, and J. L. Hutchison. 2004. Use of early lactation days open records for genetic evaluation of cow fertility. J. Dairy Sci. 87:2277-2284.
3. VanRaden, P. M., A. H. Sanders, M. E. Tooker, R. H. Miller, H. D. Norman, and G. R. Wiggans. 2004. Development of a national genetic evaluation for cow fertility. J. Dairy Sci. 87:2285-2292.