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Effects of urea and saccharose on intake and digestion of a Digitaria decumbens hay by black belly sheep

  • H. Archimède (a1), G. Aumont (a1), G. Saminadin| (a1), E. Deprès (a1), P. Despois (a1) and A Xandé (a1)...

Abstract

Effects of incorporation of urea and saccharose in diets, on intake and digestion by sheep of a 35-day-old pangola (Digitaria decumbens) hay, have been studied according to a 4 × 4 Latin-square design. Sixteen rams were given four diets: hay (C); hay plus urea (U, 23 g/kg hay); hay plus saccharose (S, 60 g/kg hay), hay plus urea and saccharose (SU). Acid-detergent fibre and crude protein (CP) content of the roughage were 395 and 78 g/kg dry matter (DM) respectively. Intake of hay (g DM per kg live weight0.75), supplemented with urea and sugar (42⋅9), was lower (F < 0.05) than with other diets (47.2, s.e. 1.6). The organic matter (OM) total tract and ruminal digestibility of the diet C, S, U and SU were 0.622, 0.590, 0.615 and 0.587 (s.e. 0.007); 0.361, 0.380, 0.378 and 0.345 (s.e. 0.015) respectively. Effective degradation and nylon bag kinetics of DM degradation were higher with U and SU compared with S or C. Few differences were observed between diets for ruminal concentration of volatile fatty acids. The ruminal ammonia concentrations were higher (P < 0.05) for the diets with urea than without urea (78 v. 215 mg/l). The efficiencies of the microbial synthesis (g nitrogen per kg OM fermented in the rumen) were, 23.6, 22.4, 24.9 and 29.3 (s.e. 1.7) for the diets C, U, S and SU respectively.

Even though additional urea increased nitrogen availability for ruminal bacteria, urea supplementation did not affect significantly intake or digestion of the pangola hay of medium CP content used in this experiment.

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Aumont, G., Caudron, I., Saminadin, G. and Xandé, A. 1995. Sources of variation in nutritive values of tropical forages from Caribbean. Animal Feed Science and Technology 51: 113.
Demarquilly, C., Chenost, M. and Giger, S. 1995. Pertes fécales et digestibilité des aliments et des rations. In Nutrition des ruminants domestiques (ed. Jarrige, R., Ruckebush, Y., Demarquilly, C., Farce, M.H. and Journet, M.), pp. 383406. INRA publications, Paris.
Egan, A.R. 1980. Host animal-rumen relationships. Proceedings of the Nutrition Society 39: 7987.
Egan, J.K. and Doyle, P.T. 1985. Effect of intraruminal infusion of urea on the response in voluntary food intake by sheep. Australian Journal of Agricultural Research 36: 483495.
Faichney, G.J. 1980. The use of markers to measure digesta flow from stomach of sheep fed once daily. Journal of Agricultural Science, Cambridge 94: 313318.
Fick, K.R., Ammerman, C.B., McCowan, C.H., Loggins, P.E. and Cornell, J.A. 1973. Influence of supplemental energy and biuret nitrogen on the utilization of low quality roughage by sheep. Journal of Animal Science 36: 133143.
Hennessy, D.W. and Willamson, P.T. 1990. Feed intake and live weight of cattle on subtropical native pasture hays. I. The effect of urea. Australian Journal of Agricultural Research 41: 11691177.
Hunter, R.A. and Siebert, B.D. 1985a. Utilization of low-quality roughage by Bos taurus and Bos indicus cattle. 1. Rumen digestion. British Journal of Nutrition 53: 637648.
Hunter, R.A. and Siebert, B.D. 1985b. Utilization of low-quality roughage by Bos taurus and Bos indicus cattle. 2. The effect of rumen degradable nitrogen and sulfur on voluntary food intake and rumen characteristics. British Journal of Nutrition 53: 649656.
Hunter, R.A. and Siebert, B.D. 1987. The effect of supplements of rumen-degradable protein and formaldehyde-treated casein on the intake of low-nitrogen roughage by Bos taurus and Bos indicus steers at different stages of maturity. Australian Journal of Agricultural Research 38: 209218.
Leng, R.A. 1990. Factors affecting the utilization of ‘poor-quality’ forages by ruminants particularly under tropical conditions. Nutrition Research Reviews 3: 277309.
Liebholz, J. and Kellaway, R.C. 1982. Effect of energy supplements on the intake and utilisation of low quality roughages. Proceedings of the Australian Society of Animal Production 14: 6567.
McMeniman, N.P. and Armstrong, D.G. 1977. Nitrogen level in low-roughage diet for efficient rumen microbial protein production. Animal Feed Science and Technology 51: 255266.
Meissner, H.H., Pienaar, J.P., Liebenberg, L.H.P. and Roux, C.Z. 1979. Rumen flow dynamics and voluntary intake in ruminants. Annales de Recherches Vétérinaires 10: 219222.
Milford, R. and Minson, D.J. 1965. Intake of tropical pasture species. Proceedings of the IX international grassland congress, p. 815822.
Minson, D.J. 1990. Forage in ruminant nutrition. Academic Press, inc., San Diego, California 92101.
Ørskov, E.R. and McDonald, I. 1979. The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science, Cambridge 92: 499503.
Poppi, D.P., Minson, D.J. and Ternouth, J.H. 1981. Studies of cattle and sheep eating leaf and stem fractions of grasses. I. Voluntary intake, digestibility and retention time in the reticulo-rumen. Australian Journal of Agricultural Research 32: 99108.
Preston, T.R. 1995. Tropical animal feeding. A manual for research workers. FAO animal production and health paper no. 126.
Sauvant, D., Grenet, E. and Doreau, M. 1995. Dégradation chimique des aliments dans le réticulo-rumen: cinétique et importance. In Nutrition des ruminants domestiques (ed. Jarrige, R., Ruckebush, Y., Demarquilly, C., Farce, M.H. and Journet, M.), pp. 383406. INRA publications, Paris.
Statistical Analysis Systems Institute. 1987. SAS/STAT guide for personal computer. SAS Institute, Inc., Cary, NC.
Stern, M.D. and Hoover, W.H. 1979. Methods for determining and factors affecting rumen microbial protein synthesis: a review. Journal of Animal Science 49: 15901603.
Stern, M.D., Hoover, W.H., Sniffen, C.J., Crooker, B.A. and Knowlton, P.H. 1978. Effects of nonstructural carbohydrate, urea and soluble protein levels on microbial protein synthesis in continuous culture of rumen contents. Journal of Animal Science 47: 944956.
Thornton, R.F. and Minson, D.J. 1972. The relationship between voluntary intake and mean apparent retention time in the rumen. Australian Journal of Agricultural Research 23: 871877.
Thornton, R.F. and Minson, D.J. 1973. The relationship between apparent retention time in the rumen, voluntary intake and apparent total tract digestibility of legumes and grass diets in sheep. Australian Journal of Agricultural Research 24: 889898.
Van Soest, P.J., Robertson, J.B. and Lewis, B.A. 1991. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science 74: 35833597.
Vérité, R., Michalet-Dorea, B., Chapoutot, P., Peyraud, J.L. and Poncet, C. 1987. Révision du système des protéines digestibles dans l’intestin (P.D.I.). Bulletin Technique du CRZV de Theix, INRA 70: 1934.
Weston, R.H. 1985. The regulation of feed intake in herbage feed animals. Proceedings of the Nutrition Society of Australia 10: 5562.
Wheeler, W.E., Dinius, D.A. and Coombe, J.B. 1979. Digestibility, rate of digestion and rumino-reticulum parameters of beef steers fed low-quality roughages. Journal of Animal Science 49: 13571363.
Yang, W.Z. 1992. Etude de la cinétique de la colonisation des aliments dans le rumen des moutons. Conséquence sur la compartimentation de la biomasse et la dynamique à la sortie du rumen dans le cas de différents types de rations. Thesis no. 307 of the University Blaise Pascal, Clermont-Ferrand II, France.
Zinn, R.A. and Owens, F.N. 1986. A rapid procedure for purine measurement and its use for estimating net ruminal protein synthesis. Canadian Journal of Animal Science 66: 157166.

Keywords

Effects of urea and saccharose on intake and digestion of a Digitaria decumbens hay by black belly sheep

  • H. Archimède (a1), G. Aumont (a1), G. Saminadin| (a1), E. Deprès (a1), P. Despois (a1) and A Xandé (a1)...

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