Effects of urea and soybean meal supplementation on rates of plasma leucine turnover and protein synthesis in sheep fed concentrate-based diets

References

• AFRC . 1993 . Energy and protein requirements of ruminants. An advisory manual prepared by the AFRC Technical Committee on responses to nutrients , Wallingford : CAB International .
   Google Scholar
• Allsop , JR , Wolfe , RR and Burke , JK . 1978 . Tracer priming the bicarbonate pool . Journal of Applied Physiology , 45 : 137 – 139 .
   PubMed Web of Science ®Google Scholar
• Archimède , H , Aumont , G , Saminadin , G , Deprès , E , Despois , P and Xandé , A . 1999 . Effects of urea and saccharose on intake and digestion of a Digitaria decumbens hay by black belly sheep . Animal Science , 69 : 403 – 410 .
   Google Scholar
• Bequette , BJ , Kyle , CE , Crompton , LA , Anderson , SE and Hanigan , MD . 2002 . Protein metabolism in lactating goats subjected to the insulin clamp . Journal of Dairy Science , 85 : 1546 – 1555 .
   PubMed Web of Science ®Google Scholar
• Brito , AF and Broderick , GA . 2007 . Effects of different protein supplements on milk production and nutrient utilization in lactating dairy cows . Journal of Dairy Science , 90 : 1816 – 1827 .
   PubMed Web of Science ®Google Scholar
• Ferrell , CL , Kreikemeier , KK and Freetly , HC . 1999 . The effect of supplemental energy, nitrogen, and protein on feed intake, digestibility, and nitrogen flux across the gut and liver in sheep fed low-quality forage . Journal of Animal Science , 77 : 3353 – 3364 .
   PubMed Web of Science ®Google Scholar
• Fujita , T , Kajita , M and Sano , H . 2006 . Responses of whole body protein synthesis, nitrogen retention and glucose kinetics to supplemental starch in goats . Comparative Biochemistry and Physiology , 144B : 180 – 187 .
   Web of Science ®Google Scholar
• Harris , PM , Skene , PA , Buchan , V , Milne , E , Calder , AG , Anderson , SE , Connell , A and Lobley , GE . 1992 . Effect of food intake on hind-limb and whole-body protein metabolism in young growing sheep: chronic studies based on arterio-venous techniques . British Journal of Nutrition , 68 : 389 – 407 .
   PubMed Web of Science ®Google Scholar
• Hsu , JT , Fahey , GC Jr. , Clark , JH , Berger , LL and Merchen , NR . 1991 . Effects of urea and sodium bicarbonate supplementation of a high-fiber diet on nutrient digestion and ruminal characteristics of defaunated sheep . Journal of Animal Science , 69 : 1300 – 1311 .
   PubMed Web of Science ®Google Scholar
• Krishnamurti , CR and Janssens , SM . 1988 . Determination of leucine metabolism and protein turnover in sheep, using gas-liquid chromatography-mass spectrometry . British Journal of Nutrition , 59 : 155 – 164 .
   PubMed Web of Science ®Google Scholar
• Lapierre , H , Blouin , JP , Bernier , JF , Reynolds , CK , Dubreuil , P and Lobley , GE . 2002 . Effect of supply of metabolizable protein on whole body and splanchnic leucine metabolism in lactating cows . Journal of Dairy Science , 85 : 2631 – 2641 .
   PubMed Web of Science ®Google Scholar
• Lee , J , Harris , PM , Sinclair , BR and Treloar , BP . 1993 . Whole body metabolism of cysteine and glutathione and their utilization in the skin of Romney sheep: consequence for wool growth . Journal of Agricultural Sciences (Cambridge) , 121 : 111 – 124 .
   Web of Science ®Google Scholar
• Magni , F , Arnoldi , L , Galati , G and Galli Kienle , M . 1994 . Simultaneous determination of plasma levels of (α-ketoiso-caproic acid and leucine and evaluation of (α-[1-13C]keto-Isocaproic acid and [1-13C]leucine. enrichment by gas chromatography-mass spectrometry . Analytical Biochemistry , 220 : 308 – 314 .
   PubMed Web of Science ®Google Scholar
• NRC . 1985 . Nutrient requirements of sheep , 6th ed , Washington, DC : National Academy Press .
   Google Scholar
• Oddy , VH , Lindsay , DB , Barker , PJ and Northrop , AJ . 1987 . Effect of insulin on hind-limb and whole-body leucine and protein metabolism in fed and fasted lambs . British Journal of Nutrition , 58 : 437 – 452 .
   PubMed Web of Science ®Google Scholar
• Rego , OA , Regalo , SMM , Rosa , HJD , Alves , SP , Borba , AES , Bessa , RJB , Cabrita , ARJ and Fonseca , AJM . 2008 . Effects of grass silage and soybean meal supplementation on milk production and milk fatty acid profiles of grazing dairy cows . Journal of Dairy Science , 91 : 2736 – 2743 .
   PubMed Web of Science ®Google Scholar
• Rihani , N , Garrett , WN and Zinn , RA . 1993 . Influence of level of urea and method of supplementation on characteristics of digestion of high-fiber diets by sheep . Journal of Animal Science , 71 : 1657 – 1665 .
   PubMed Web of Science ®Google Scholar
• Rooke , JA and Armstrong , DG . 1989 . The importance of the form of nitrogen on microbial protein synthesis in the rumen of cattle receiving grass silage and continuous intrarumen infusions of sucrose . British Journal of Nutrition , 61 : 113 – 121 .
   PubMed Web of Science ®Google Scholar
• Sano , H , Kajita , M and Fujita , T . 2004 . Effect of dietary protein intake on plasma leucine flux, protein synthesis, and degradation in sheep . Comparative Biochemistry and Physiology , 139B : 163 – 168 .
   Web of Science ®Google Scholar
• Sano , H , Shibasaki , S and Sawada , H . 2009 . The effect of the source of nitrogen supplementation on nitrogen balance, rates of plasma leucine turnover, protein synthesis and degradation in sheep . Archives of Animal Nutrition , 63 : 401 – 412 .
   PubMed Web of Science ®Google Scholar
• SAS . 1996 . SAS/STAT® Software: changes and enhancements through Release 6.11 , Cary, NC : SAS Institute, Inc .
   Google Scholar
• Tedeschi , LO , Baker , MJ , Ketchen , DJ and Fox , DG . 2002 . Performance of growing and finishing cattle supplemented with a slow-release urea product and urea . Canadian Journal of Animal Science , 82 : 567 – 573 .
   Web of Science ®Google Scholar
• Tesseraud , S , Grizard , J , Debras , E , Papet , I , Bonnet , Y , Bayle , G and Champredon , C . 1993 . Leucine metabolism in lactating and dry goats: effect of insulin and substrate availability . American Journal of Physiology , 265 : E402 – E413 .
   PubMed Web of Science ®Google Scholar
• Zinn , RA , Barrajas , R , Montano , M and Ware , RA . 2003 . Influence of dietary urea level on digestive function and growth performance of cattle fed steam-flaked barley-based finishing diets . Journal of Animal Science , 81 : 2383 – 2389 .
   PubMed Web of Science ®Google Scholar