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Effects of Supplemental Alfalfa Hay on Feed Intake and Digestion by Holstein Steers or Orchardgrass Hay ' Consuming High-quality Bermudagrass
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lagassé, Martine Goetsch, Arthur L. Landis, Kevin Forster, Lindsey A. Little |
| Copyright Year | 2002 |
| Abstract | Effects of level and frequency of supplementation with alfalfa (A) on feed intake and digestion by steers fed bermudagrass (B) or orchardgrass (0) were determined in two Latin square experiments. In Exp. 1, six Holstein steers (224 kg) were fed B (2.25% N; 71.4% NDF) or 0 (2.52% N 64.3% NDF) with 0, 15 or 30% (DM) A (2.70% N 44.0% NDF). Total DMI was 2.43, 2.72 and 2.85% BW for B and 2.98, 3.00 and 2.87% BW for 0 with 0, 15 and 30% A, respectively. Total DMI was affected by forage (P < .05), A level (linear; P < .06) and a forage x A level (linear) interaction (P < .05). Digestible OM intake increased .42 (15%) and .67 kg (24%) with feeding of 15 and 30% A, respectively, for B, but for 0, only dietary inclusion of 30% A elevated digestible OM intake (.14 kg and 4% increases). In Exp. 2, five Holstein steers (165 kg) were fed B (1.81% N; 78.6% NDF) alone or with A (2.76% N, 52.8% NDF). Morning meals consisted of ad libitum B (OA), .3% BW of A daily (.3A), .6% BW of A every 2nd d (.6A), .9% BW of A every 3rd d (.9A) or 1.2% BW of A every 4th d (1.2A). All steers received B in the afternoon ad libitum, and B was given in the morning when A was not fed. Total DMI was 2.31,2.12, 2.12, 2.26 and 2.29% BW for OA, .3A, .6A. .9A and 1.2A, respectively (SE .049). Grass characteristics affected response in feed intake to legume supplementation. Frequency of dietary legume addition may alter feed intake. ( |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.animalsciencepublications.org/publications/jas/pdfs/68/9/2839 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
