PSXV-22 Effects of Lespedeza Condensed Tannins Alone or with Monensin, Soybean Oil, and Coconut Oil on Feed Intake, Growth, Digestion, Ruminal Methane Emission, and Heat Energy by Yearling Alpine Doelings. (7th December 2018)

• Record Type: Journal Article
• Authors: Liu, H; Puchala, R; LeSure, S; Gipson, T; Goetsch, A
• Is Part Of: Journal of animal science. Volume 96(2018)Supplement 3
• Page Start: 473
• Page End: 473
• Publication Date: 2018-12-07
• Subjects: Condensed tannins -- Goats -- Methane; Livestock -- Periodicals; Livestock; Electronic journals; Periodicals; 636.005
• DOI: 10.1093/jas/sky404.1033
• Languages: English
• ISSNs: 0021-8812

Abstract

Abstract: Fifty-four Alpine doelings (31.7 ± 0.38 kg BW and 306 ± 1.9 d) consumed 75% forage diets ad libitum in a 12-wk trial with 2 6-wk periods. Alfalfa was the forage in control (C) and other diets consisted of Sericea lespedeza with 1.25% DM of quebracho extract in concentrate, for a condensed tannin level of 8.4%. Lespedeza treatments were no additive (L) and inclusion of monensin (I) at 22 mg/kg (DM; L-I), soybean oil (SBO) at 3% (L-S), coconut oil (CCO) at 3% (L-N), I and 3% SBO (L-I-S), I and 3% CCO (L-I-N), 1.5% SBO and 1.5% CCO (L-S-N), and I, 1.5% SBO, and 1.5% CCO (L-I-S-N). The C diet averaged 16.7% CP, 43.8% NDF, and 8.8% ADL, and the L diet was 12.7% CP, 42.8% NDF, and 13.2% ADL. There were no treatment×period interactions ( P >0.05). Intake of DM was 1.47, 1.27, 1.29, 1.19, 1.33, 1.14, 1.08, 1.14, and 0.98 kg/d (SEM=0.064) and ADG was 122, 79, 89, 83, 100, 76, 70, 78, and 65 g for C, L, L-I, L-S, L-N, L-I-N, L-S-N, and L-I-S-N, respectively (SEM=9.7). Total tract digestibilities of OM (57.4, 50.9, 51.8, 52.7, 50.3, 52.1, 52.1, 51.9, and 49.8%; SEM=1.42) and N (59.1, 31.2, 32.5, 37.1, 31.6, 38.3, 30.4, 38.4, and 34.1% for C, L, L-I, L-S, L-N, L-I-N, L-S-N, and L-I-S-N, respectively; SEM=2.21) were greater for C than for lespedeza treatments ( P <0.05) for diets with lespedeza relative to GE (5.92, 3.27, 3.49, 3.19, 2.84, 2.91, 3.20, 3.20, and 3.27%; SEM=0.165) and DE (11.19, 6.98, 7.40, 6.38, 5.90, 5.69, 6.37, 6.38, and 6.70% for C, L, L-I, L-S, L-N, L-I-N, L-S-N, and L-I-S-N, respectively; SEM=0.400). In conclusion, the effect of tannins on methane did not diminish over time and was not influenced by monensin, soybean oil, or coconut oil.