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- W2317821489 abstract "The Calan Feeding Control System (Am. Calan, Inc., Northwood, N.H.) is used to obtain data on forage selection by livestock. We modified the dimensions of the system and tested it with 2 adult male desert bighorn sheep (Ovis canadensis mexicana); modifications were adequate for bighorn sheep. The animals required 7 days to adjust to the feeding frame and 9 days to learn how to use the controlled-access feeding system. Consumption by bighorn sheep of a daily ration decreased about 50% during the learning phase but returned to maintenance levels within 14 days. Controlled-access feeding serves as an alternative to traditional techniques for quantifying diets. J. WILDL. MANAGE. 52(4):613-615 Diets have been quantified using fecal (Gill et al. 1983) and rumen analyses (Wydeven and Dahlgren 1983), esophageal fistulation (Mautz and Fair 1980), estimates inferred from habitat use (Oldemeyer 1983), observation of restrained animals (Schwartz et al. 1988), and bite-count observations (Collins and Urness 1983). Difficulties with identification of plant fragments in fecal samples and contamination of pellets have been discussed by Gill et al. (1983). Limited sample size for rumen analyses (Wydeven and Dahlgren 1983), surgery and healing times associated with fistulae (Mautz and Fair 1980), and reliance on locating individuals for bitecount observation are problems related to diet studies of wild species. Economic limitations also are inherent in studies of large herbivores. We determined if a feeding gate system used in dairy research could be modified for desert bighorn sheep and examined the system's acceptability by bighorn sheep. We acknowledge W. W. Brown and C. B. Theurer for their assistance in obtaining the Calan system. We thank M. C. Wallace and R. C. Etchberger for assisting with animal care and maintenance of the Calan system between feeding trials. We thank the students and staff in the wildlife and fisheries program at the University of Arizona for assistance in vegetation collection. This study was funded by the Agricultural Experiment Station, University of Arizona and The Estes Company, Tucson." @default.
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- W2317821489 date "1988-10-01" @default.
- W2317821489 modified "2023-09-26" @default.
- W2317821489 title "A Gate System for Feeding Captive Ungulates" @default.
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- W2317821489 doi "https://doi.org/10.2307/3800918" @default.
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