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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(8): 2968-2972
DOI: https://doi.org/10.20546/ijcmas.2020.908.333


Effect of Pre- Ovulatory Follicle Size on Pregnancy Rate in Murrah Buffaloes
Sushobhit Kr. Singh1*, S. Mehrotra1, Pradeep Chandra1, M. K. Patra1, Brijesh Kumar1, Harendra Kumar1, A. K. S. Tomar2 and Gyanendra Singh3
1Animal Reproduction Division, 3Division of Physiology and Climatology, ICAR- Indian Veterinary Research Institute, Izatnagar- 243122, India
2LPM Section, ICAR- IVRI, Izatnagar, 243122, India
*Corresponding author
Abstract:

The present study was conducted on oestrus Murrah buffaloes presented for artificial insemination (AI) at Cattle and Buffalo farm, Livestock Production and Management (LPM) section of the institute during August, 2019 to March, 2020. The buffaloes were scanned ultrasonographically to record size of the pre- ovulatory follicle (POF). The buffaloes were simultaneously inseminated by frozen thawed semen twice as per AM- PM schedule. Pregnancy diagnosis was performed thirty days post insemination by per- rectal ultrasonography (USG). Out of total 60 buffaloes, 60% had POF on their left ovary and 40% on right. POF size was significantly smaller (11.37 ± 0.39 mm) in heifers which became pregnant in contrast to non- pregnant (14.31 ± 0.92 mm), however it did not differ significantly in parous buffaloes. It was recorded that larger sized POF had lower pregnancy rate (35.7%) in comparison to smaller (50.00%) and medium (50.00%) sized POF. In conclusion, pregnant heifers had smaller POF size than non pregnant and higher pregnancy rates were associated with smaller and medium sized POF, in comparison to large.


Keywords: Pre-ovulatory follicle, Murrah, Oestrus
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How to cite this article:

Sushobhit Kr. Singh, S. Mehrotra, Pradeep Chandra, M. K. Patra, Brijesh Kumar, Harendra Kumar, A. K. S. Tomar and Gyanendra Singh. 2020. Effect of Pre- Ovulatory Follicle Size on Pregnancy Rate in Murrah Buffaloes.Int.J.Curr.Microbiol.App.Sci. 9(8): 2968-2972. doi: https://doi.org/10.20546/ijcmas.2020.908.333