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Cinnagar supplementation of cattle grazing wheat or native pasture in northwest Oklahoma

Author:
Gunter, S. A., Combs Jr., G. F.
Source:
Proceedings Western Section American Society of Animal Science 2013 v.64 pp. 326-329
ISSN:
0569-7832
Subject:
Artemisia filifolia, feed supplements, grazing, liveweight gain, minerals, monensin, nutrient intake, pastures, rangelands, steers, stocker cattle, winter wheat, Oklahoma
Abstract:
Two experiments were conducted to evaluate CinnaGar (Provimi; Trappes, France) and monensin (Ruminsen; Elanco Animal Health, Greenfield, IN) as supplements for grazing stocker cattle in northwest Oklahoma. In Exp. 1, twelve 2.2-ha pastures of winter wheat were grazed (1.2 steers/ha) with stocker steers (initial BW = 250 kg) starting March 3 for 70 d. Pastures were fertilized in early September with 56 kg of N/ha from urea. Free-choice minerals (Beef Minerals 3V6S; Vigortone Ag Products, Brooksville, OH) were provided to 6 pastures in ground-style mineral feeders, while the other pastures received a similar mineral (Beef Minerals 3V6SG, Vigortone Ag Products) except it contained 1,587 g/tonne of CinnaGar. In Exp. 2, 16 native pastures of sand sagebrush rangeland (between 4.1 and 8.2 ha each) were stocked (36 animal-unit-d/ha) with steers (initial BW = 254 kg) starting April 24 for 84 d. A base free-choice mineral (Beef Mineral 3V6S) was used and monensin and CinnaGar were added in a 2 x 2 factorial arrangement of treatments; 1) 0 and 0; 2) 1,761 and 0; 3) 0 and 2,351; and 4) 1,761 and 2,351 g/tonne of monensin and CinnaGar, respectively. In Exp. 1, mineral intake was 150 and 107 g/d for no CinnaGar and CinnaGar (P = 0.24), respectively. Also, ADG (overall avg = 1.4 kg) did differ (P = 0.66) between no CinnGar and CinnaGar; hence, ending BW (overall avg = 339 kg) or BW gain/ha (overall avg = 44 kg) did not differ (P > 0.52). In Exp. 2, mineral intake differed (P < 0.01) by treatment and was 79, 31, 68, and 43 g/d, respectively; the addition of monensin decreased mineral intake (P < 0.01), while CinnaGar did not affect mineral intake (P = 0.80). Further, ADG (overall avg = 0.65 kg) did not differ (P = 0.47) among treatments; hence, ending BW (overall avg = 305 kg) or BW gain/ha (overall avg = 41 kg) did not differ (P > 0.48). At these levels of CinnaGar intake and with these types of pasture, these supplements did not significantly affect animal performance.
Handle:
10113/597501