IMR Press / FBE / Volume 5 / Issue 3 / DOI: 10.2741/E660

Frontiers in Bioscience-Elite (FBE) is published by IMR Press from Volume 13 Issue 2 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Article

Estrous activity detection device in mammals

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1 Animal Production Department, Faculty of Agriculture, Assiut university, Assiut, Egypt

*Author to whom correspondence should be addressed.

Academic Editor: Indrajit Chowdhury

Front. Biosci. (Elite Ed) 2013, 5(3), 798–808; https://doi.org/10.2741/E660
Published: 1 June 2013
(This article belongs to the Special Issue Recent progress in reproductive biology)
Abstract

Control of estrus is essential for the efficiency of any breeding program in farm animals, artificial insemination, hand mating and prediction of parturition dates. The present study is providing new evidence about determination of silent estrus in Damascus does. Since many D. does do not show any interest toward the male across seasons compared with spontaneous estrus detected by buck goat (BG). Results revealed that estrus detected by BG has significantly higher in autumn (78 of 86) than spring (3 of 11), while estrus detected by frequent vaginal inspection (FVI) was higher in spring (8 of 11) than autumn (8 of 86). Normal estrous cycles (EC) is significantly higher in D. does detected by BG than by FVI, while short and long EC are higher in D. does detected by FVI than by BG. Moreover, biochemical and hormonal analysis revealed that BG is an effective tool to measure estrus’s quality especially in autumn and winter.

Keywords
Spontaneous and silent estruses
FVI device
Cervical mucus characteristics
Progesterone
Seasonal variation and Damascus does
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