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dc.contributor.author
Mejia, Miguel Eduardo  
dc.contributor.author
Lacau, Isabel María  
dc.date.available
2017-11-25T10:39:58Z  
dc.date.issued
2005-03-15  
dc.identifier.citation
Mejia, Miguel Eduardo; Lacau, Isabel María; Endometritis treatment with a PGF2a analog does not improve reproductive performance in a large dairy herd in Argentina; Elsevier; Theriogenology; 63; 5; 15-3-2005; 1266-1276  
dc.identifier.issn
0093-691X  
dc.identifier.uri
http://hdl.handle.net/11336/29100  
dc.description.abstract
In Argentina, most dairy cows with endometritis are treated with prostaglandin (PGF2α or its analogs) and insemination is withheld until there are no signs of endometritis. The objective of the present study was to evaluate if this method of managing endometritis enhances reproductive performance. Three experiments were conducted over 4 years in a large farm in the west of Buenos Aires province. In Experiment 1, half of the cows diagnosed with endometritis (>1.5-fold difference in diameter of uterine horns, as determined by rectal palpation) received standard endometritis management (treatment with tiaprost, a PGF2α analog, rectal palpation every 20 days, and withholding of AI until endometritis apparently resolved) and the other half was untreated, with AI at the first estrus after the voluntary waiting period. Untreated cows were inseminated and conceived 20 days earlier than treated cows, and the pregnancy rate by Day 90 postpartum was higher in the untreated group. In Experiment 2, cows with endometritis were divided into four groups according to the severity of symptoms; within each group, cows were allocated to treatment or control, as in Experiment 1. Although first service conception rate decreased as endometritis severity increased, reproductive performance in treated versus control cows was similar to that of Experiment 1 (with no interaction due to degree of endometritis). Re-evaluation of the treated cow (to confirm uterine “normality”) may have been responsible for the delay in conception in both experiments. The objective of Experiment 3 was to determine the effects of tiaprost treatment on clinically normal postpartum cows (no evidence of endometritis). Tiaprost treatment reduced the interval from calving to conception in multiparous cows, but it delayed conception and reduced the conception rate in primiparous cows. In conclusion, treatment with tiaprost impaired reproductive performance in primiparous cows (in the absence of endometritis). Furthermore, the standard treatment for endometritis (treatment with a prostaglandin analog and withholding insemination until clinical signs abated) impaired reproductive performance and increased costs.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/  
dc.subject
Endometritis  
dc.subject
Dairy Cow  
dc.subject
Tiaprost  
dc.subject
Pgf2a  
dc.subject
Reproductive Perfomance  
dc.subject
Argentina  
dc.subject.classification
Otras Producción Animal y Lechería  
dc.subject.classification
Producción Animal y Lechería  
dc.subject.classification
CIENCIAS AGRÍCOLAS  
dc.title
Endometritis treatment with a PGF2a analog does not improve reproductive performance in a large dairy herd in Argentina  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-11-16T15:12:26Z  
dc.journal.volume
63  
dc.journal.number
5  
dc.journal.pagination
1266-1276  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Mejia, Miguel Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina  
dc.description.fil
Fil: Lacau, Isabel María. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina  
dc.journal.title
Theriogenology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.theriojournal.com/article/S0093-691X(04)00211-0/abstract  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.theriogenology.2004.05.023