publication . Article . 2010

Progesterone inserts may help to improve breeding readiness in beef heifers

Favetto, Pedro H; Hoar, Bruce R; Myers, Dan M; Tindall, Justin;
Open Access English
  • Published: 01 Apr 2010 Journal: California Agriculture (issn: 0008-0845, eissn: 2160-8091, Copyright policy)
  • Publisher: University of California Agriculture and Natural Resources
Abstract
The accurate determination of pubertal status in yearling beef heifers, possibly combined with the use of exogenous progesterone, allows females to produce the maximum number of calves over their lifetimes. This study aimed to determine the reliability of a reproductive tract scoring (RTS) system that combines manual palpation with ultrasound as a measure of pubertal status, and whether the treatment of heifers with progesterone-containing vaginal inserts — followed by breeding on the second estrus after removal of the insert — could result in increased conception rates compared to untreated heifers. Over 2 years, we found that RTS predicted pubertal status reas...
Subjects
mesheuropmc: animal structuresanimal diseases
free text keywords: Agriculture, S1-972, S, Agriculture (General), Life Sciences, Animal, Avian, Aquaculture and Veterinary
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publication . Article . 2010

Progesterone inserts may help to improve breeding readiness in beef heifers

Favetto, Pedro H; Hoar, Bruce R; Myers, Dan M; Tindall, Justin;