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Table 3 The percentage weight loss of collars in the cat studies over time

From: The synergistic action of imidacloprid and flumethrin and their release kinetics from collars applied for ectoparasite control in dogs and cats

Bayer Animal Health study member Breed (body weight [kg]) Study duration [days] mean weight loss [%]
146.164 Mix (2.3-5.4) 30 10,7
   238 20,1
146.303 DSH (3.7-4.7) 238 18.5
146.159 Mix (2.1-4.7) 60 8,4
152.152 DSH (2.8-5.3) 61 9.1
152.150 DSH (0.86-1.47) SD 0 30 5,04
   60 7,10
146.747 DSH (3.6-5.7) 28 4.4
146.156 DSH (2.8-5.3) 238 19.1
146.045 DSH (3.8-7.0) 241 20.8
146.155 DSH (2.7- 240 18.8
146.162 (field) several (1.7-8.3) up to 240 days time depending
  1. Small collars were used in a total of 157 cats in laboratory based studies plus 66 cats in a field study. DSH: domestic short haired