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Table 4 The percentage weight loss of collars in the dog 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 number Breed (body weight [kg]) Study duration [days] mean weight loss [%]
146.165 Mix (11.6-19.4) 30 18.1
   238 5.4
146.306 Beagle (9.4-13.6) 238 17.8
146.161 Mix (8.4-20.2) 60 4.2
152.151 Beagle (8.7-13.4) 61 7.9
152.149 Beagle (1.5-2.9) SD 0 23 3,4
   30 6.5
   60 13.5
146.737 Beagle (8.7-11.7) 28 3.2 and 2.9
146.158 Beagle (8.8-12.8) 245 14.8
146.390 Beagle (6.6-20-4) 240 16.0
146.592 Beagle (8.3-13.5) 240 17.7
146.269 Mix (7.1-21.5) 90 8.3
146.607 Beagle (10.0-13.1) 91 9.7
146.163 (field) collar S (n = 48; of 45 dogs): several breeds (0.5-8 kg) up to 240 days time depending
  collar L (n = 242; of 219 dogs): several breeds (8-69 kg)   time depending
  1. Large collars were used in all the laboratory based animals totalling 177 animals plus 59 field study animals. Of these, 48 used large collars and the remainder used small collars.