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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(5): 1922-1925
DOI: https://doi.org/10.20546/ijcmas.2019.805.222


Incidence of Silent Oestrus and an Investigation of Reproductive Status in Crossbred Cows under Field Conditions of Assam
D. Bharali1*, K.C. Deka2, B.C. Deka2, K.C. Nath2, R.K. Biswas2, L.J. Dutta2 and B.K. Sarmah3
1Livestock Research Station, AAU, Mondira, Kamrup, Assam, India
2Department of Animal Reproduction, Gynaecology & Obstetrics
3Department of Animal Physiology, College of Veterinary Science, AAU, Khanapara, Guwahati-781022, Assam, India
*Corresponding author
Abstract:

The present study was carried out in a total of 673 postpartum crossbred cows of first to fifth lactations maintained under stall fed conditions at different Government and private farms from Kamrup Metro, Cachar and Udalguri district of Assam. All the postpartum crossbred cows were examined per rectum to determine the reproductive status based on the owner’s history and the incidence of cows with silent oestrus was worked out. Results revealed that a total of 86 crossbred cows (12.78%) reported to be anestrous were identified as silent oestrus on the basis of presence of either uterine tone or corpus luteum or Graafian follicle on clinico-gynaecological examination. The district-wise incidence of silent oestrus was found to be 14.29, 10.08 and 14.25 per cent in Kamrup Metro, Cachar and Udalguri district respectively. Reproductive status of the crossbred cows other than anoestrus investigated were pregnant, recently calved, repeat breeder, true anoestrus, chronic cervicitis, metritis, ovaro-bursal adhesion, cystic ovary and normal oestrus with the percentage frequencies of 11.44, 8.02, 22.88, 26.11, 2.67, 11.00, 0.30, 0.44 and 4.31 respectively when estimated out of the total number of postpartum cows.


Keywords: Crossbred cows, Postpartum, Per-rectum, Silent oestrus, Incidence
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How to cite this article:

Bharali, D., K.C. Deka, B.C. Deka, K.C. Nath, R.K. Biswas, L.J. Dutta and Sarmah, B.K. 2019. Incidence of Silent Oestrus and an Investigation of Reproductive Status in Crossbred Cows under Field Conditions of Assam.Int.J.Curr.Microbiol.App.Sci. 8(5): 1922-1925. doi: https://doi.org/10.20546/ijcmas.2019.805.222