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Mooventhan, P.
- Influence of Clinical Mastitis and its Treatment Outcome on Reproductive Performance in Crossbred Cows:A Retrospective Study
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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.
Authors
Narender Kumar
1,
A. Manimaran
1,
M. Sivaram
2,
A. Kumaresan
3,
S. Jeyakumar
1,
L. Sreela
4,
P. Mooventhan
5,
D. Rajendran
6
Affiliations
1 Livestock Research Centre, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru-560030, Karnataka, IN
2 Dairy Economics and Statistics Section, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru-560030, Karnataka, IN
3 Theriogenology Laboratory, Animal Reproduction, Gynaecology & Obstetrics, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru-560030, Karnataka, IN
4 Livestock Production and Management Section, ICAR National Dairy Research Institute (NDRI), Karnal-132001, Haryana, IN
5 ICAR-National Institute of Biotic Stress Management, Baronda, Raipur-493225, Chhattisgarh, IN
6 Division of Animal Nutrition, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, Karnataka, IN
1 Livestock Research Centre, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru-560030, Karnataka, IN
2 Dairy Economics and Statistics Section, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru-560030, Karnataka, IN
3 Theriogenology Laboratory, Animal Reproduction, Gynaecology & Obstetrics, Southern Regional Station, ICAR-National Dairy Research Institute (NDRI), Adugodi, Bengaluru-560030, Karnataka, IN
4 Livestock Production and Management Section, ICAR National Dairy Research Institute (NDRI), Karnal-132001, Haryana, IN
5 ICAR-National Institute of Biotic Stress Management, Baronda, Raipur-493225, Chhattisgarh, IN
6 Division of Animal Nutrition, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, Karnataka, IN
Source
Veterinary World, Vol 10, No 5 (2017), Pagination: 485-492Abstract
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.Full Text
- Emerging and Re-emerging Biotic Stresses of Agricultural Crops in India and Novel Tools for their Better Management
Abstract Views :329 |
PDF Views:79
Authors
J. Kumar
1,
R. K. Murali-Baskaran
1,
S. K. Jain
1,
P. N. Sivalingam
1,
J. Mallikarjuna
1,
Vinay Kumar
1,
K. C. Sharma
1,
J. Sridhar
1,
P. Mooventhan
1,
A. Dixit
1,
P. K. Ghosh
1
Affiliations
1 ICAR-National Institute of Biotic Stress Management, Raipur 493 225, IN
1 ICAR-National Institute of Biotic Stress Management, Raipur 493 225, IN
Source
Current Science, Vol 121, No 1 (2021), Pagination: 26-36Abstract
Food security of our country is at risk due to heavy yield losses of agricultural crops caused by pests and diseases known together as biotic stresses. Conventional management practices in vogue are not competent under the current situations obscured by the incitants of biotic stresses which have either enhanced their offensive capabilities due to adaptive mutations or regained their pathogenic/ herbivory potential owing to climate change. Numerous causal agents of biotic stresses are also introduced in the country or new regions of the country either through natural dispersal as invasive species, or on account of quarantine irregularities at national or international levels. Therefore, it is of utmost importance to appraise the impact of these new biotic stresses burgeoned in the recent past and to develop novel technologies for their management. To devise an effective preventive and eradicative strategy for containing these biotic stresses, new research innovations need to be practiced such as deciphering basic/molecular mechanism of host-pathogen/insect interactions; endophytic mechanisms of plant protection; nanotechnology in pest management; host resistance strengthening by gene cloning, recombinant DNA technologies, RNA biology, utilizing gene editing technologies such as CRISPR/Cas9, etc. This article presents a comprehensive account of new biotic stresses of agricultural crops built up in the country and also reviews the novel scientific inventions made worldwide which can be further employed to devise more efficient methods for alleviating impact of these biotic stresses of food crops in the country.Keywords
Agriculture, Biotic Stress, Crops, Food Security, Management.Full Text
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