Comparison between 7 vs 9 days of controlled internal drug release inserts permanency on oestrus performance and fertility in lactating dairy cattle

The objective was to evaluate the reproductive performance after oestrus synchronization using controlled internal drug release (CIDR) maintained into the vagina either 7 or 9 days. A controlled randomized block design was performed. Cows (n=255) were blocked by lactation number and days in milk an...

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Bibliographic Details
Main Authors: Juan E. Romano, Melvyn L. Fahning
Format: Article
Language:English
Published: Taylor & Francis Group 2013-08-01
Series:Italian Journal of Animal Science
Subjects:
Online Access:http://www.aspajournal.it/index.php/ijas/article/view/2836