Feeding wet corn gluten feed to reduce subacute acidosis in cattle
| Autor: | G A Ham, Daniel Herold, Drew Shain, J E Carulla, Rick Stock, C R Krehbiel |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Male
Meat Rumen Glutens Cattle Diseases Zea mays Random Allocation Animal science Latin square Genetics medicine Animals Acidosis chemistry.chemical_classification General Medicine Hydrogen-Ion Concentration Gluten Subacute ruminal acidosis chemistry Agronomy Alfalfa hay Animal Science and Zoology Cattle medicine.symptom Food Science |
| Zdroj: | Journal of animal science. 73(10) |
| ISSN: | 0021-8812 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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