Net flux of nutrients across splanchnic tissues in wethers consuming grasses of different sources and physical forms ad libitum

The British Journal of Nutrition
A L GoetschJ E Rossi

Abstract

Crossbred sheep (n 16, 8.5 months of age and 33 (SE 0.9) kg) were used in a 21 d experiment (2 x 2 factorial) to determine effects on net flux of nutrients across the portal-drained viscera (PDV) and liver of ad libitum consumption of bermudagrass (Cynodon dactylon; B) v. ryegrass (Lolium multiflorum)-wheat (Triticum aestivum; RW) hay, coarsely chopped (CC) or finely ground and pelleted (GP). Crude protein concentrations were 86, 81, 113 and 119 g/kg and neutral-detergent fibre concentrations were 710, 688, 654 and 672 g/kg (dry matter basis) for B-CC, B-GP, RW-CC and RW-GP respectively. Digestible energy intake (6.0, 9.6, 10.2 and 13.8 MJ/d) differed (P < 0.01) with grass source and form, and digestible N intake values were 4.4, 7.0, 8.4 and 14.1 (SEM 0.82) g/d for B-CC, B-GP, RW-CC and RW-GP diets respectively. Consumption of O2 by the PDV (118, 165, 144 and 155 mmol/h) and splanchnic bed (196, 273, 247 and 266 mmol/h for B-CC, B-GP, RW-CC and RW-GP respectively) was greater (P = 0.07) for GP than for CC. The ratio splanchnic heat energy production: digestible energy intake was greater (P = 0.06) for B than for RW (0.374, 0.300, 0.278 and 0.219 for B-CC, B-GP, RW-CC and RW-GP respectively). alpha-Amino-N release by the PDV (P...Continue Reading

References

Oct 1, 1992·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·M Aminlari, T Vaseghi
Mar 1, 1991·Journal of Animal Science·D G BurrinR A Britton
Sep 1, 1990·The British Journal of Nutrition·J H Eisemann, J A Nienaber
May 1, 1972·The British Journal of Nutrition·J A McLean
Jan 1, 1993·Nutrition Research Reviews·C J Seal, C K Reynolds

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Citations

Jun 6, 2014·Animal : an International Journal of Animal Bioscience·N SalahH Archimède
Apr 5, 2014·Indian Journal of Critical Care Medicine : Peer-reviewed, Official Publication of Indian Society of Critical Care Medicine·Nagarajan RamakrishnanS Bhuvaneshwari

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