Vet World Vol.10 May-2017 Article-3
Research Article
Veterinary World, 10(5): 485-492
https://doi.org/10.14202/vetworld.2017.485-492
Influence of clinical mastitis and its treatment outcome on reproductive performance in crossbred cows: A retrospective study
2. Dairy Economics and Statistics Section, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru - 560 030, Karnataka, India.
3. Theriogenology Laboratory, Animal Reproduction, Gynaecology & Obstetrics, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru - 560 030, Karnataka, India.
4. Livestock Production and Management Section, ICARNational Dairy Research Institute (NDRI), Karnal - 132 001, Haryana, India.
5. ICAR-National Institute of Biotic Stress Management, Baronda, Raipur - 493 225, Chhattisgarh, India.
6. Division of Animal Nutrition, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru - 560 030, Karnataka, India.
Background and Aim: Evaluation of the effect of clinical mastitis (CM) and its treatment outcome on the reproductive performance in crossbred cows retrospectively.
Materials and Methods: Datasets of 835 lactating cows affected with CM during a period of 12 years (2001-2012) were considered for this study. Mastitis treatment related data and reproductive parameters such as days to first detected heat (DTFDH), days to first insemination (DTFI), days open (DO), and number of services per conception (SC) were collected from mastitis treatment and artificial insemination registers, respectively. Data were analyzed by ANOVA using SPSS 20 software. The means were compared with the Duncan's multiple comparison post-hoc test.
Results: CM affected cows had significantly (p<0.05) higher DTFDH, DTFI, DO and SC compared to clinically healthy cows. Cows diagnosed with a single episode of CM had significantly (p<0.05) delayed DTFDH while, DO and SC were significantly higher (p<0.05) in cows diagnosed by multiple episodes of CM. SC was significantly (p<0.05) higher in cows diagnosed with both relapse and recurrence. Severe CM affected cows had significantly (p<0.05) altered reproductive parameters. The reproductive parameters were altered to high extent when CM occurred during the breeding period.
Conclusion: CM-affected cows had higher DTFDH, DTFI, DO and SC compared to clinically healthy cows. The negative effects of CM on reproduction parameters were higher when CM occurred during the breeding period. Keywords: clinical mastitis, crossbred cows, reproductive parameters, retrospective study.
Keywords: clinical mastitis, crossbred cows, reproductive parameters, retrospective study.
How to cite this article: Kumar N, Manimaran A, Sivaram M, Kumaresan A, Jeyakumar S, Sreela L, Mooventhan P, Rajendran D (2017) Influence of clinical mastitis and its treatment outcome on reproductive performance in crossbred cows: A retrospective study, Veterinary World, 10(5): 485-492.
Received: 01-12-2016 Accepted: 20-03-2017 Published online: 07-05-2017
Corresponding author: A. Manimaran E-mail: maranpharma@gmail.com
DOI: 10.14202/vetworld.2017.485-492
Copyright: Kumar, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.