Health status of preweaned dairy heifers in the United States

The first national estimates of mortality and morbidity for preweaned dairy heifers in the US were generated from monitoring heifers from 906 operations in 28 states prospectively using a daily diary card system. Results indicated that the cumulative mortality incidence risk from birth to 8 weeks of...

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Bibliographic Details
Published in:Preventive veterinary medicine 1997, Vol.29 (3), p.185-199
Main Authors: Wells, S.J., Garber, L.P., Hill, G.W.
Format: Article
Language:English
Subjects:
Aging - physiology
ANIMAL HEALTH
Animals
BOVIN LAITIER
Cattle - physiology
Cattle Diseases - epidemiology
Cattle Diseases - mortality
DAIRY CATTLE
Dairy heifer
Dehydration - epidemiology
Dehydration - veterinary
DESTETE
Diarrhea - epidemiology
Diarrhea - mortality
Diarrhea - veterinary
Female
GANADO DE LECHE
GENISSE
Health Status
HEIFERS
Incidence
Joint Diseases - epidemiology
Joint Diseases - mortality
Joint Diseases - veterinary
Lameness, Animal - epidemiology
MORBIDITE
MORBIDITY
MORBOSIDAD
MORTALIDAD
MORTALITE
MORTALITY
NOVILLA
Prospective Studies
Respiratory Tract Diseases - epidemiology
Respiratory Tract Diseases - mortality
Respiratory Tract Diseases - veterinary
Risk Factors
SANIDAD ANIMAL
SANTE ANIMALE
Seasons
SEVRAGE
United States - epidemiology
WEANING
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Summary:The first national estimates of mortality and morbidity for preweaned dairy heifers in the US were generated from monitoring heifers from 906 operations in 28 states prospectively using a daily diary card system. Results indicated that the cumulative mortality incidence risk from birth to 8 weeks of life was 6.3% with a peak of 1.9% during the first week of life. Season of birth was significantly associated with cumulative mortality incidence risk, and mortality risk was highest in the periods January to March and October to December. Cumulative incidence risk of diarrhea to 8 weeks of age was 24.6% with a peak of 15.4% during the second week of life. Diarrhea incidence risk varied by region, with the West having the highest incidence risk (30.5%) and the Northeast the lowest (19.2%), as well as by herd size, with the smallest herd size having the lowest reported incidence risk of diarrhea to 8 weeks of age (18.8%). Other reported 8 week cumulative disease incidence risks included listlessness, 10.0%; respiratory disease, 8.4%; dehydration, 4.1%; lameness or joint problems, 1.1%.
ISSN:0167-5877
1873-1716
DOI:10.1016/S0167-5877(96)01078-1