﻿488 
  Seventh 
  Annual 
  Kepokt 
  of 
  the 
  

  

  Black 
  Quarter, 
  

  

  Several 
  eases 
  have 
  been 
  reported 
  and 
  investigated. 
  The 
  loss, 
  

   in 
  the 
  various 
  outbreaks, 
  has 
  been, 
  ten 
  calves, 
  six 
  yearlings, 
  four 
  

   two-year-olds, 
  and 
  one 
  three-year-old. 
  I 
  have 
  vaccinated 
  with 
  vac- 
  

   cine 
  prepared 
  at 
  the 
  United 
  States 
  Bureau 
  of 
  Animal 
  Industry, 
  

   seven 
  calves, 
  30 
  yearlings, 
  20 
  two-year-olds, 
  and 
  one 
  three-year-old, 
  

   making 
  a 
  total 
  of 
  58. 
  In 
  the 
  majority 
  of 
  cases, 
  the 
  farmer 
  thinks 
  

   the 
  disease 
  a 
  mysterious 
  one, 
  or 
  that 
  his 
  cattle 
  have 
  been 
  poisoned 
  

   by 
  some 
  imaginary 
  enemy. 
  Such 
  farmers 
  do 
  not 
  realize 
  the 
  import- 
  

   ance 
  of 
  carefully 
  disinfecting 
  all 
  places 
  where 
  diseased 
  animals 
  

   have 
  died; 
  nor 
  the 
  necessity 
  of 
  burning 
  or 
  burying 
  the 
  carcasses, 
  

   and 
  all 
  secretion 
  or 
  excretion 
  of 
  diseased 
  animals. 
  They 
  should 
  

   be 
  buried, 
  apart 
  from 
  any 
  stream, 
  well, 
  marshy 
  or 
  flat 
  land, 
  and 
  the 
  

   grave 
  covered 
  with 
  lime 
  and 
  fenced. 
  That 
  such 
  people 
  may 
  better 
  

   understand 
  the 
  cause, 
  s^Tuptoms 
  and 
  preventive 
  treatment, 
  a 
  brief 
  

   account 
  may 
  prove 
  of 
  interest. 
  

  

  Black 
  quarter 
  is 
  a 
  disease 
  known 
  by 
  the 
  names 
  of 
  black 
  leg, 
  

   quarter 
  ill 
  and 
  symptomatic 
  anthrax. 
  

  

  AVhen 
  one 
  or 
  more 
  cattle 
  die 
  very 
  suddenly, 
  without 
  any 
  appar- 
  

   ent 
  cause, 
  it 
  is 
  usually 
  supposed 
  that 
  the 
  cause 
  of 
  death* 
  was 
  anthrax 
  

   or 
  poison. 
  This 
  disease 
  is 
  usually 
  confined 
  to 
  cert.ain 
  farms 
  in 
  

   certain 
  localities, 
  where 
  it 
  mav 
  remain 
  for 
  vears. 
  

  

  As 
  a 
  rule, 
  only 
  cattle, 
  from 
  the 
  time 
  they 
  are 
  changed 
  from 
  a 
  

   strictly 
  milk 
  diet 
  to 
  four 
  years 
  of 
  age, 
  become 
  affected. 
  Calves, 
  

   when 
  on 
  a 
  milk 
  diet, 
  and 
  indigenous 
  cattle 
  over 
  four 
  years 
  of 
  age, 
  

   are 
  rarely 
  affected. 
  The 
  disease 
  is 
  caused 
  by 
  a 
  micro-organism. 
  

   This 
  disease 
  usually 
  runs 
  a 
  very 
  rapid 
  course, 
  which, 
  as 
  a 
  

   rule, 
  ends 
  fatally 
  in 
  from 
  one 
  to 
  three 
  days. 
  Oftentimes, 
  upon 
  

   going 
  to 
  the 
  field, 
  one 
  or 
  more 
  of 
  the 
  yoimg 
  animals, 
  which 
  were 
  

   apparently 
  healthy 
  the 
  preceding 
  day, 
  will 
  be 
  found 
  dead. 
  It 
  is 
  

   characterized 
  by 
  elevation 
  of 
  temperature, 
  stiffness 
  of 
  gait, 
  rapidly 
  

   increasing 
  swellings 
  of 
  the 
  skin, 
  which, 
  if 
  pressed 
  on 
  with 
  the 
  

   hand, 
  gives 
  a 
  crackling 
  sound. 
  The 
  swellings 
  may 
  appear 
  in 
  any 
  

   part 
  of 
  the 
  body 
  above 
  the 
  knees 
  and 
  hocks. 
  They 
  are 
  at 
  fii^t 
  

  

  