Linked Life Data

9178121

Source:http://linkedlifedata.com/resource/pubmed/id/9178121

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1997-6-26
pubmed:abstractText
Seventy-four lactating dairy ewes were injected with recombinant bovine somatotropin (bst; sometribove) in a sustained-release formulation. Ewes received 0, 80, 160, or 240 mg of bST/14 d from wk 3 to 8 of lactation (part 1) and 0, 80, or 160 mg of bST/14 d from wk 11 to 18 of lactation (part 2). The optimal dose of bST was studied as well as the factors (lactation stage, lactation number, initial milk production, body weight, and body condition) possibly affecting the increase in milk production following bST injection. Using a quadratic regression model, the maximum theoretical dose was determined to be 181 mg of bST/14 d during the first part of lactation. During the second part of lactation, 143 mg of bST/14 d was the maximum theoretical dose. The increment of milk production did not vary with lactation number, but first lactation ewes, in general, responded better than did multiparous ewes. Relative to initial milk production, improvement was greatest for ewes with average milk production (1500 ml/d) that received a dose of 192.3 mg of bST/14 d during the first part of lactation; improvement was also measured from the highest producers (2000 ml/d) during the second part of lactation. The best response was obtained from ewes with average body condition (score 3 on a five-point scale where 1 = thin to 5 = fat) and a dose of 200 mg of bST/14 d during the first part of lactation; during the second part of lactation, body condition score had no effect. Body weight had no effect on the increment of production at any time.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-0302
pubmed:author
pubmed:issnType
Print
pubmed:volume
80
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
818-29
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Bovine somatotropin dose titration in lactating dairy ewes. 2. Dose determination and factors affecting the response.
pubmed:affiliation
Department of Animal Science, Universidad Politénica de Valencia, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't