Effects of including physically effective fiber from sugarcane in whole corn grain diets on the ingestive, digestive, and ruminal parameters of growing beef bulls
| Autor: | H. M. Alhadas, F.A.S. Silva, S.C. Valadares Filho, P. Pucetti, B. C. Silva, F. F. e Silva, M.V.C. Pacheco, Luis O Tedeschi |
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| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
chemistry.chemical_classification General Veterinary 0402 animal and dairy science 04 agricultural and veterinary sciences Biology 040201 dairy & animal science 03 medical and health sciences 030104 developmental biology Nutrient Animal science chemistry Latin square Feedlot Ingestion Animal Science and Zoology Organic matter Dry matter Digestion Feces |
| Zdroj: | Livestock Science. 248:104508 |
| ISSN: | 1871-1413 |
| Popis: | The objective of this study was to evaluate the inclusion of physically effective fiber (peNDF) from sugarcane in feedlot diets containing whole corn grain on ingestive, digestive, and ruminal parameters. Five rumen-cannulated Nellore bulls (BW = 393 ± 9 kg) distributed in an incomplete 5 × 5 Latin square received diets containing 5% (D5), 15% (D15), 25% (D25), or 35% (D35) sugarcane. All diets included a mineral-protein supplement. Omasal digesta collection and fecal spot collection were carried out to estimate ruminal and total digestibility. The ruminal contents were emptied to calculate ingestion (ki), passage (kp), and digestion (kd) rates. The linear, quadratic, and cubic effects of including sugarcane (i.e., different peNDF contents) were evaluated using orthogonal contrasts. The intake of total digestible nutrients (TDN, P = 0.06), dry matter (DM, P = 0.03), and organic matter (OM, P = 0.03) showed a quadratic pattern, with the highest estimated values occurring between 6.14 and 10.2% of peNDF. Ruminal digestibility [%, (P = 0.01) and kg/d, (P = |
| Databáze: | OpenAIRE |
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