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Articles by B.R. Singh
Total Records ( 3 ) for B.R. Singh
  B.R. Singh , M. Chauhan , R.K. Sindhu , B.R. Gulati , S.K. Khurana , B. Singh , H.S. Yadav and R.P. Yadav
  There are about 20 million equids in India and might be harbouring numerous diseases at any time, however there is little information on prevalence of most of the diseases. A survey of equine practitioners was undertaken to understand the diseases scenario in equids in India. A total of 2000 survey questionnaires were sent to equine practitioners in 64 districts in 14 states, plus 30 private equine farms and four government farms. A total of 532 (26.6%) equine practitioners responded to the questionnaire. On an average each vet treated >1000 animals and >50 equids per year. Out of the 72 health problems of equids identified by the equine practitioners, colic was the commonest followed by trypanosomiasis (surra), lameness, respiratory tract infections including pneumonia and bronchitis and abscess/wounds/injuries group. The information may help in prioritizing future research and resources to improve equine health and welfare.
  S.K. Sinha , S. Das , R.C. Misra and B.R. Singh
  Not Available
  The prediction of the oxidation rate of elemental sulfur (S0) is a critical step in sulfur (S) fertilizer strategy to supply plant-available sulfur. An incubation experiment was conducted to determine the rate and amount of S0 oxidation in relation to the contribution of Thiobacillus spp. and aerobic heterotrophic S-oxidizing bacteria. After 84 days, 16.3% and 22.4% of the total S0 applied to the soil were oxidized at 20 and 30 °C, respectively. The oxidation of S0 proved to be a two-step process with a rapid oxidation during the first 28 days and a slow oxidation from then on. The highest oxidation rate of 12.8 μg S cm−2 d−1 was measured during the first two weeks at 30 °C. At 20 °C the highest oxidation rate of 10.2 μg S cm−2 d−1 was obtained from two to four weeks after start of the experiment. On an average the soil pH declined by 3.6 and 4.0 units after two weeks of experiment. At the same time the electric conductivity increased nine times. With the oxidation of S0 the population of Thiobacillus spp. and aerobic heterotrophic S-oxidizing bacteria increased. The corresponding values for Thiobacillus spp. and aerobic heterotrophic S-oxidizing bacteria increased from 2.9 × 105 and 1.4 × 105 g−1 soil at the start of the experiment to 4 × 108 and 5.6 × 108 g−1 soil 14 days after S0 application, respectively. No Thiobacillus spp. was present eight weeks after S0 application. The results suggested that oxidation of residual S0 completely relied on aerobic heterotrophic S-oxidizing bacteria.
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