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ARS Home » Southeast Area » Booneville, Arkansas » Dale Bumpers Small Farms Research Center » Research » Publications at this Location » Publication #65207
Title: EFFECTS OF DIETARY LEVEL OF BROILER LITTER ON NET FLUX OF NUTRIENTS ACROSS SPLANCHNIC TISSUES IN SHEEP

Author
item ROSSI, J - UNIV OF ARKANSAS
item Goetsch, Arthur
item PARK, K - UNIV OF ARKANSAS
item PATIL, A - UNIV OF ARKANSAS
item GALLOWAY SR, D - UNIV OF ARKANSAS
item KOUAKOU, B - UNIV OF ARKANSAS
item WANG, Z - UNIV OF ARKANSAS

Submitted to: American Society of Animal Science Southern Section Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 2/6/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Nine crossbred sheep (36 +/- 1.7 kg BS; 1 yr of age) consumed 25% ground corn diets with 30% broiler litter and 45% bermudagrass hay (L), 45% litter and 30% hay (M), or 60% litter and 15% hay (H). Broiler litter was 21% ash, 72% NDF, and 11.5% CP, and hay was 75% NDF and 10% CP (DM basis). Total DM (.96, 1.00, and .93 kg/d; SE .105), digestible OM (.46, .42, and .37 kg/d; SE .045), and digestible N intakes (9.9, 9.8, and 9.8 g/d for L, M, and H, respectively; SE 1.0) were similar among treatments. Portal (84, 116 L/h; P=.06) and hepatic blood flow (104, 110, and 152 L/h; P=.04) increased linearly with increasing litter. Likewise, oxygen consumption by the portal-drained viscera (92, 103, and 156 mM/h), liver (78, 100, and 128 mM/h), and splanchnic bed (169, 292, and 279 mM/h for L, M, and H, respectively) increased as litter level increased. Net fluxes of alpha-amino (portal: 12 +/- 2.4 mM/h; hepatic: -16 +/- 1.9 mM/h; splanchnic: -4 +/- 2.3 mM/h) and urea N (portal: -11 +/- 2.4 mM/h; hepatic: 21 +/- 2.8 mM/h; splanchnic: 12 +/- 3.2 mM/h) were similar among treatments. Portal release (P=.13; 8.8, 11.3, and 15.6 mM/h) and hepatic uptake of ammonia N increased linearly (P=.06; 9.5, 10.9, and 16.9 mM/h for L, M, and H, respectively) with increasing litter. Net flux of glucose across the portal-drained viscera increased linearly (P=.03) with increasing litter (-3.2, .1, and 1.2 mM/h for L, M, and H, respectively), although net fluxes across the liver and splanchnic bed were similar among treatments. In summary, with similar digestible OM intake among treatments and litter relatively low in CP and high in NDF, splanchnic tissue energy consumption increased with increasing level of litter.