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Characterizing the ovarian follicular dynamics and ovarian hormonal profile of Lakhimi cow during the estrus cycle

Year: 2025

Type: article

Abstract: Lakhimi cattle is a promising indigenous dual breed in Assam and adjoining tropical area of Northeastern India, with valuable traits. This study aimed to monitor ovarian follicular dynamics and hormonal profiles during the estrus cycle in Lakhimi cows. The predominant one of two-wave follicular cycles (66.7%) was observed in Lakhimi cows, with a significantly shorter duration of the ovulatory wave compared to three-wave cycles (p<0.05). Two-wave cycles exhibited a higher antral follicle count (4.33 ± 0.49 nos) and smaller dominant follicles (11.51 ± 0.54 mm) compared to three-wave cycles. Early luteal regression was observed in two-wave cycles (14.15 ± 1.50 days). Hormonal dynamics revealed the peak progesterone concentration on 10th day (10.94±1.93 ng/ml), estradiol on the 20th day, and the day of heat and luteinizing hormone (LH) was the 1st day. These insights about Lakhimi cow’s reproductive physiology can aid in breeding, conserving, and promoting this indigenous breed.

Source: DOAJ (DOAJ: Directory of Open Access Journals)

Authors: Anupam Datta, Anubha Baruah, Arundhati Bora, D. J. Dutta, J. Goswami, D. Bhuyan, Sukanta Das

Institutions: Animal Resources Development Department, Assam Agricultural University

Language: English

Topic: Reproductive Physiology in Livestock

Subfield: Animal Science and Zoology

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: green

OpenAlex ID: W7162895024

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