Linked Life Data

8169284

Source:http://linkedlifedata.com/resource/pubmed/id/8169284

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-6-2
pubmed:abstractText
The purpose of this study was to develop a time-dependent model to account for the effects of recombinant bST in a slow-release formulation on short-term (between two consecutive injections) and long-term (baseline of the lactation curve) response of milk yield and composition. Observations on milk yield (n = 8234) and on milk composition (n = 1509) of 196 Holstein Friesian cows were recorded over 1 yr of trial. Treated cows were injected with somidobove at 3- or 4-wk intervals. Data were analyzed according to a model that included effect of treatment, parity, interaction, and the random effect of cow; two time-dependent covariables, obtained by the splitting of DIM, were included in the model to account for the effects of bST on short- and long-term responses of milk traits. Cyclical variations of milk yield, protein, and SCC content in the interval between two consecutive injections were detected. Recombinant bST administration also influenced the persistency of milk yield and protein content. Treatment of cows at 3- and 4-wk intervals increased yield by 20.6 and 12.6% over those of untreated cows. Nearly 60% of this increment was due to the short-term effect of bST. Milk composition response to bST was less noticeable.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-0302
pubmed:author
pubmed:issnType
Print
pubmed:volume
77
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
759-69
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Modeling response to slow-releasing somatotropin administered at 3- or 4-week intervals.
pubmed:affiliation
Department of Animal Science, University of Padova, Italy.
pubmed:publicationType
Journal Article