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2011 | 20 | 1 |

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Net nutrient flux in visceral tissues of goats fed diets based on maize or wheat

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The objective of this study was to investigate the effects of dietary starch sources on the net portal-drained viscera (PDV) flux of metabolites in goats fed diets based on maize and wheat, respectively. Eight 8-month-old Liuyang Black wether goats, with catheters surgically in the mesenteric vein, the portal vein and the carotid artery, were assigned to one of two diets for determination of net nutrient flux across the PDV. There were no differences (P>0.05) in plasma concentrations of glucose and ammonia-nitrogen (N) in the portal vein and carotid artery, and net PDV flux of glucose and urea-N between maize diet and wheat diet. The portal plasma urea-N concentration and net PDV flux of ammonia-N of goats fed maize diet were lower (P<0.05) than those of goats fed wheat diet. Plasma concentrations in the portal vein and carotid artery and net PDV flux of certain essential amino acids of goats fed maize diet were higher (P<0.05) than those of goats fed wheat diet. The results of this study suggested that dietary starch source could affect N absorption and utilization in goats.

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  • Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, CAS, Changsha 410125, P.R. China


  • AOAC, 1990. Association of Official Analytical Chemists, Official Methods of Analysis. 15th Edition. Washington, DC
  • Boguhn J., Kluth H., Rodehutscord M., 2006. Effect of total mixed ration composition on amino acid profiles of different fractions of ruminal microbes in vitro. J. Dairy Sci. 89, 1592-1603
  • Da Fonseca-Wollheim F., Heinze K.G., 1992. Which is the appropriate coenzyme for measurement of ammonia with glutamate dehydrogenase? Eur. J. Clin. Chem. Clin. Biochem. 30, 537-540
  • Eisemann J.H., Huntington G.B., Ferrell C.L., 1987. Blood flow to hindquarters of steers measured by transit ultrasound and indicator dilution. J. Dairy Sci. 70, 1385-1390
  • Hoover W.H., Stokes S.R., 1991. Balancing carbohydrates and protein for optimum rumen microbial yield. J. Dairy Sci. 74, 3630-3644
  • Hristov A.N., Ropp J.K., Grandeen K.L., Abedi S., Etter R.P., Melgar A., Foley A.E., 2005. Effect of carbohydrate source on ammonia utilization in lactating dairy cows. J. Anim. Sci. 83, 408-421
  • Huntington G.B., 1997. Starch utilization by ruminants: From basics to the bunk. J. Anim. Sci. 75, 852-867
  • Huntington G.B., Reynolds C.K., Stroud B.H., 1989. Techniques for measuring blood flow in splanchnic tissues of cattle. J. Dairy Sci. 72, 1583-1595
  • Khan M.A., Lee H.J., Lee W.S., Kim H.S., Kim S.B., Ki K.S., Park S.J., Ha J.K., Choi Y.J., 2007. Starch source evaluation in calf starter: I. Feed consumption, body weight gain, structural growth, and blood metabolites in Holstein calves. J. Dairy Sci. 90, 5259-5268
  • Lapierre H., Pacheco D., Berthiaume R., Ouellet D.R., Schwab C.G., Dubreuil P., Holtrop G., Lobley G.E., 2006. What is the true supply of amino acids for a dairy cow? J. Dairy Sci. 89, E1-E14
  • Lu D.X., Xie C.W., 1991. Modern Method and Technology on Ruminant Nutrition Research. Chinese Agriculture Press, Beijing (China)
  • Marsh W.H., Fingerhut B., Miller H., 1965. Automated and manual direct methods for the determination of blood urea. Clin. Chem. 11, 624-627
  • McLeod K.R., Bauer M.L., Harmon D.L., Reynolds C.K., Mitchell Jr G.E., 1997. Effects of exogenous somatostatin and cysteamine on net nutrient flux across the portal-drained viscera and liver of sheep during intraduodenal infusion of starch hydrolysate and casein. J. Anim. Sci. 75, 3026-3037
  • Moore S., Stein W.H., 1954. Procedures for the chromatographic determination of amino acids on four per cent cross-linked sulfonated polystyrene resins. J. Biol. Chem. 211, 893-906
  • NRC, 2001. Nutrient Requirements of Dairy Cattle. National Academy Press. 17th revised Edition. Washington, DC
  • Nozière P., Rèmond D., Lemosquet S., Chauveau B., Durand D., Poncet C., 2005. Effect of site of starch digestion on portal nutrient net fluxes in steers. Brit. J. Nutr. 94, 182-191
  • Offner A., Bach A., Sauvant D., 2003. Quantitative review of in situ starch degradation in the rumen. Anim. Feed Sci. Tech. 106, 81-93
  • Osborne V.R., Leslie K.E., McBride B.W., 2002. Effect of supplementing glucose in drinking water on the energy and nitrogen status of the transition dairy cows. Can. J. Anim. Sci. 82, 427-433
  • Ørskov E.R., 1975. Manipulating of rumen fermentation for maximum food utilization. World Rev. Nutr. Diet. 22, 152-182
  • Reynolds C.K., 2006. Production and metabolic effects of site of starch digestion in dairy cattle. Anim. Feed Sci. Tech. 130, 78-94
  • Reynolds C.K., Harmon D.L., Cecava M.J., 1994. Absorption and delivery of nutrients for milk protein synthesis by portaldrained viscera. J. Dairy Sci. 77, 2787-2808
  • Sun Z.H., Tan Z.L., Liu S.M. et al., 2007. Effects of dietary methionine and lysine sources on nutrient digestion, nitrogen utilization, and duodenal amino acid flow in growing goats. J. Anim. Sci. 85, 3340-3347
  • Tagari H., Webb Jr. K., Theurer B. et al., 2004. Portal drained visceral flux, hepatic metabolism, and mammary uptake of free and peptide-bound amino acids and milk amino acid output in dairy cows fed diets containing corn grain steam flaked at 360 or steam rolled at 490 g/L. J. Dairy Sci. 87, 413-430
  • Taniguchi K., Huntington G.B., Glenn B.P., 1995. Net nutrient flux by visceral tissues of beef steers given abomasal and ruminal infusions of casein and starch. J. Anim. Sci. 73, 236-249
  • Van Soest P.J., Robertson J.B., Lewis B.A., 1991. Symposium: carbohydrate methodology, metabolism and nutritional implications in dairy cattle. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. J. Dairy Sci. 74, 3583-3597
  • Wang S.P., Tan Z.L., 2007. Effects of starch sources on digestion, metabolism, meat quality and antioxidant capacity of goat. PhD. Thesis, Institute of Subtropical Agriculture, CAS, Hunan (China)
  • Young J.W., 1977. Gluconeogenesis in cattle: significance and methodology. J. Dairy Sci. 60, 1-15
  • Zinn R.A., 1988. Comparative feeding value of supplemental fat in finishing diets for feedlot steers supplemented with and without monensin. J. Anim. Sci. 66, 213-227


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