publication . Article . 2012

Slow recovery of blood glucose in the insulin tolerance test during the prepartum transition period negatively impacts the nutritional status and reproductive performance postpartum of dairy cows.

Lee, Hsu-Hsun; Kida, Katsuya; Miura, Ryotaro; Inokuma, Hisashi; Miyamoto, Akio; Kawashima, Chiho; Haneda, Shingo; Miyake, Yoh-ichi; Matsui, Motozumi;
Open Access English
  • Published: 01 Jan 2012 Journal: Journal of Veterinary Medical Science, volume 74, issue 4, pages 457-464 (issn: 0916-7250, Copyright policy)
  • Publisher: Japanese Society of Veterinary Science
Abstract
In peripartum dairy cows, insulin resistance (IR) increases to adjust the direction of energy to lactation after calving. To investigate the effect of prepartum IR on postpartum reproductive performance, the insulin tolerance test (ITT) was applied to 15 cows at 3 weeks (Pre21) and 10 days (Pre10) before the predicted calving date. Blood glucose area under the curve (AUCglu) within 120 min after administration of 0.05 IU/kg-BW insulin was calculated. The occurrence of first ovulation, days to first artificial insemination (AI) and first AI conception rate were recorded. Nutritional status postpartum was evaluated by blood chemical analysis. Based on AUCglu chang...
Subjects
free text keywords: dairy cows, glucose metabolism, insulin tolerance test, reproductive performance, transition period
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Article . 2012
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