音声学と聴覚学ジャーナル
オープンアクセス
ISSN: 2155-9899
ISSN: 2155-9899
Atul Singh Rajput, Bhakat M, Mohanty TK, Sanjit Maity, Mondal G, Mir AA, Rajput MS
Vaccination is a critical intervention in the management of productive animals, but it is often associated with a transient reduction in milk production. The current study aimed to assess the extent of milk production loss in dairy animals following Foot and Mouth Disease (FMD), Hemorrhagic Septicemia and Black Quarter (HS and BQ), Theileriosis and Infectious Bovine Rhinotracheitis (IBR) vaccinations. The milk production data was collected 15 days before and after vaccination from 2018 to 2020 during different vaccination program. We found a significant (p<0.01; p<0.05) decrease in fortnightly total milk yield per animal and average milk yield per animal per day was observed in different parities and lactation stages following vaccination compared to pre-vaccination levels. Among the vaccinated animals, Sahiwal cows exhibited varying responses to vaccination, with 67.5 to 85.3% showing a decline in milk production, while 14.7 to 32.5% showed no significant effect on milk production after different vaccination program. In the case of affected Sahiwal cows, the extent of the decline in average daily milk yield per animal per day varied: 33–38% of animals showed a decline of up to 10%, 20–25% showed a 10–20% decline, 15–24% exhibited a 20–30% decline, 9–10% experienced a 30–40% decline and 9–15% showed a decline of more than 40% following vaccination. In conclusion, this study highlights the diverse responses of Bos indicus dairy animals to vaccination, with a range of percentages of milk production declines observed. So, there was a need for tailored vaccination strategies to mitigate the impact of vaccination on milk production while ensuring animal health and disease prevention. These findings have implications for the sustainable management of dairy cattle in regions where these diseases are prevalent.