title: Feeding wet corn gluten feed to reduce subacute acidosis in cattle.
abstract: Two experiments were conducted to evaluate the effects of feeding wet corn gluten feed (WCGF) on subacute acidosis in cattle. In Exp. 1, 60 individually fed yearling steers (270 +/- 22 kg BW) were used in a 5 x 2 factorial arrangement of treatments. Steers were assigned to one of five dietary treatments: 1) dry-rolled corn (DRC), 2) 35% WCGF fed d 1 to 132, 3) 86.5% WCGF fed d 1 reduced to 35% WCGF by d 19 and increasing the proportion of DRC, 4) 86.5% WCGF fed d 1 to 132, or 5) 94.5% WCGF fed d 1 to 132. Final diets for Treatments 1 through 4 contained 92% concentrate and 8% alfalfa hay (DM basis). Treatment 5 was a 100% concentrate diet. All diets were fed with or without the addition of escape protein. During d 19 to 24, steers fed WCGF had less (P < .05) DMI variation than steers fed the control diet. Steers fed 86.5 and 94.5% WCGF had lower (P < .05) DMI and ADG than steers fed TReatments 1 through 3, although gain/feed was mot different (P > .10) In Exp. 2, three ruminally fistulated steers (615 +/- 36 kg BW) were used in a repeated 3 x 3 Latin square design. On d 14 of each period, 7.9 kg (DM) of 100% DRC, 50% DRC:50% WCGF, of 100% WCGF was intraruminally dosed as an acidosis challenge. Area within the curve below ruminal pH 6.0 was greater (P < .05) over a 24-h period for steers dosed with 100% DRC than for steers dosed with 50% DRC: 50% WCGF or 100% WCGF. In addition, more (P < .05) ruminal VFA accumulated over 24 h for steers dosed with 100% DRC. These data suggest that feeding WCGF does nor eliminate ruminal acidosis but may reduce the length of time cattle are exposed to the insult.
authors.affiliation: Department of Animal Science, University of Nebraska, Lincoln 68583-0908, USA.
authors.forename: C R
authors.initials: CR
authors.lastname: Krehbiel
authors.forename: R A
authors.initials: RA
authors.lastname: Stock
authors.forename: D W
authors.initials: DW
authors.lastname: Herold
authors.forename: D H
authors.initials: DH
authors.lastname: Shain
authors.forename: G A
authors.initials: GA
authors.lastname: Ham
authors.forename: J E
authors.initials: JE
authors.lastname: Carulla
mesh_terms: D000138:Acidosis / Q000378:metabolism / Q000503:physiopathology / Q000517:prevention & control / Q000662:veterinary*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000378:metabolism / Q000503:physiopathology / Q000517:prevention & control*; D005983:Glutens / Q000627:therapeutic use*; D006863:Hydrogen-Ion Concentration; D008297:Male; D008460:Meat / Q000592:standards; D011897:Random Allocation; D012417:Rumen / Q000378:metabolism / Q000502:physiology; D003313:Zea mays
chemical_list: D005983:Glutens