Linked Life Data

15036981

Source:http://linkedlifedata.com/resource/pubmed/id/15036981

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7-8
pubmed:dateCreated
2004-3-23
pubmed:abstractText
Embryonic mortality contributes to repeat-breeding in dairy cows; luteal insufficiency is a known cause of embryonic mortality. The objective of this study was to assess the efficacy of supplementation with exogenous progesterone for 14 days on pregnancy maintenance in inseminated repeat-breeder dairy cows. On Day 5 after insemination, treated cows ( n=143 ) received a modified PRID (i.e. without estradiol capsule), which was removed on Day 19. Control cows ( n=148 ) did not receive any treatment. Overall there was no effect of PRID supplementation on pregnancy rates. However, when the study population was stratified by parity and stage of lactation, PRID supplementation significantly improved pregnancy rate in first and second parity late lactation cows (risk ratio = 3.26; 95% CI 1.22, 8.69). Pregnancy rates did not differ between PRID-treated cows with ( n=81 ) and without vaginitis. Control cows tended ( P=0.077 ) to have a higher proportion of abortions than PRID-treated cows (7/50 versus 2/51, respectively). In conclusion, young late lactation repeat-breeder cows benefited from progesterone supplementation, in terms of maintaining pregnancy until traditional time of pregnancy diagnosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0093-691X
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1513-20
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Effect of post-insemination supplementation with PRID on pregnancy in repeat-breeder Holstein cows.
pubmed:affiliation
School of Veterinary Medicine, University of California, One Garrod Ave, Davis, CA 95616, USA. avillarroel@ucdavis.edu
pubmed:publicationType
Journal Article