Publication Date
1993
Description
Face flies (Musca autumnalis De Geer) and slable flies (Stomoxys calcitrans L.) were raised in the laboralory and released into 12 enclosures, each with I grazing cow (Bos taurus L.). Releases of 0, 400 and 800 face flies gave 3, 53 and 64 lighted flies/cow, respectively, with 30/head al the 400 and 800 levels, and eliciled head (2, 60 and 39/h), ears (8, 1337 and 859/h), tails (24, 191 and 606/h) movements and skin twitches (1 side) (15, 210 and 248/h) but did not induce leg movements or affect number of feeding stations visited (188/h), Face flies increased herbage intake rates from 0,37 to 0.59 kg/100 kg/h and intake per bite from 0.74 to 1.36 g, Releases of 2500 stable flies/ cow resulted in mean populations of 100 lighted flies/cow with 65/ front legs, 26/hind legs and the remainder on the trunk. Stable flies inducecl movements of the front (364/h) and hind legs (84/h), head (225/h) and ears (494/h), tail (2354/h) and skin twitching ( I 173/h). Cows visited 237 feeding station/h. Herbage intake rates were not affected by stable flies and averaged 0,35 kg/100 kg/h.
Citation
Dougherty, C T.; Knapp, F W.; Burrus, P B.; and Bradley, N W., "Influence of Ectoparasites on Ingestive and Meristic Behavior of Grazing Beef Cattle" (2024). IGC Proceedings (1993-2023). 13.
https://uknowledge.uky.edu/igc/1993/session18/13
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Influence of Ectoparasites on Ingestive and Meristic Behavior of Grazing Beef Cattle
Face flies (Musca autumnalis De Geer) and slable flies (Stomoxys calcitrans L.) were raised in the laboralory and released into 12 enclosures, each with I grazing cow (Bos taurus L.). Releases of 0, 400 and 800 face flies gave 3, 53 and 64 lighted flies/cow, respectively, with 30/head al the 400 and 800 levels, and eliciled head (2, 60 and 39/h), ears (8, 1337 and 859/h), tails (24, 191 and 606/h) movements and skin twitches (1 side) (15, 210 and 248/h) but did not induce leg movements or affect number of feeding stations visited (188/h), Face flies increased herbage intake rates from 0,37 to 0.59 kg/100 kg/h and intake per bite from 0.74 to 1.36 g, Releases of 2500 stable flies/ cow resulted in mean populations of 100 lighted flies/cow with 65/ front legs, 26/hind legs and the remainder on the trunk. Stable flies inducecl movements of the front (364/h) and hind legs (84/h), head (225/h) and ears (494/h), tail (2354/h) and skin twitching ( I 173/h). Cows visited 237 feeding station/h. Herbage intake rates were not affected by stable flies and averaged 0,35 kg/100 kg/h.
