Exploring bacterial pathogens and risk factors associated with the occurrence of navel ill in calves

Authors : Md Gulam Rabbany RASSEL, Pravin MISHRA, Marzia RAHMAN, Md Mahmudul ALAM

Pages : 37-42

Doi:10.30704/http-www-jivs-net.722788

View : 18 | Download : 10

Publication Date : 2020-08-29

Article Type : Research Paper

Abstract :The study mentioned here was designed to investigate both bacterial pathogens and risk factors associated with the occurrence of naval ill in calves. A total of 350 calves diagnosed to have navel ill formed the population in our study. Incidence density reports representing the period between 2009 and 2018 were obtained from Veterinary Teaching Hospital insert ignore into journalissuearticles values(VTH);, Bangladesh Agricultural University where information about age, sex, breed, seasonal effect was also included. Umbilical swab from each individual suffering from confirmed navel ill was collected for microbiological study. The occurrence of navel ill in the age of <30 days insert ignore into journalissuearticles values(n = 244, 69.71%); was noted higher compared to the age of ≥30 days insert ignore into journalissuearticles values(n = 106, 30.29%);. Male calves were highly susceptible insert ignore into journalissuearticles values(n = 192, 54.86%); compared to females insert ignore into journalissuearticles values(n=158, 45.14%);. In cross breed individuals, the occurrence was higher insert ignore into journalissuearticles values(n = 330, 94.29%); in regard of indigenous calves insert ignore into journalissuearticles values(n=20, 5.71%);. The occurrence of the illness in summer insert ignore into journalissuearticles values(March-June); was more common insert ignore into journalissuearticles values(n = 159, 45.43%); in comparison to both rainy insert ignore into journalissuearticles values(n = 111, 31.71%); and winter insert ignore into journalissuearticles values(n = 80, 22.86%); seasons. In term of microbiological study, Staphylococcus aureus , E. coli and Proteus spp. were identified and isolated from the infected areas of the calves with the disease. In conclusion, navel ill occurred more commonly in male calves with the age of less than one month. The appearance of navel ill was noted to be more frequently in summer season insert ignore into journalissuearticles values(March-June); in cross breed calves. The results also demonstrated that the condition is mediated by mixed bacterial infection formed by gram-positive and gram-negative agents which induce the initial inflammation .  
Keywords : Calf, Navel ill, Staphylococcus aureus, E coli, Proteus spp