Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1996-8-12
pubmed:abstractText
The association of owner-diagnosed calfhood diseases with first lactation milk production was evaluated using data collected prospectively for 728 heifers from 25 New York dairy herds. Cows diagnosed with one or more occurrences of dullness, respiratory disease, or scours within 90 d of birth had first lactation milk production that was similar to that of unaffected herdmates. Estimates for the effects of dullness, respiratory disease, and scours on second test milk production were -1.0, 1.0, and .4 kg/d, respectively (adjusted for season and age at calving, times milked per day, study month on birth, sire PTA for milk production, and the other two calfhood diseases). Estimates for the effects on 305-day mature equivalent production were -139, 123, and 158 kg for dullness, respiratory disease, and scours, respectively (adjusted for study month of birth, sire PTA for milk production, and the other two calfhood diseases). These results were based on data of heifers that were selected as replacements and remained in the herd long enough to have milk production recorded. There was no significant detrimental effect of owner-diagnosed calfhood disease on first lactation milk production, but affected heifers had higher mortality before calving and were less likely to enter the milking herd.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-0302
pubmed:author
pubmed:issnType
Print
pubmed:volume
78
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2819-30
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Lack of association between calf morbidity and subsequent first lactation milk production in 25 New York Holstein herds.
pubmed:affiliation
Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.
pubmed:publicationType
Journal Article