تأثیر نوع منبع کربوهیدراتی بر تخمیر شکمبه ای و عملکرد گاوهای شیرده هلشتاین تغذیه شده با جیره حاوی اوره آهسته‌رهش

 Abdel-Ghani, A.A., Solouma, G.M.A., Abd Elmoty, A.K.I., Kassab, A.Y. and Soliman, E.B. 2011. Productive performance and blood metabolıtes as affected by protected protein in sheep. Open Journal of Animal Science, 1: 24–32. 

Ametaj, B.N., Emmanuel, D.G.V., Zebeli, Q. and Dunn, S.M. 2009. Feeding high proportions of barley grain in a total mixed ration perturbs diurnal patterns of plasma metabolites in lactating dairy cows. Journal of Dairy Science, 92: 1084-1091.‏

AOAC. 1990. Official Methods of Analysis of AOAC International. AOAC International.

Bach, A., Yoon, I.K., Stern, M.D., Jung, H.G. and Chester-Jones, H. 1999. Effects of type of carbohydrate supplementation to lush pasture on microbial fermentation in continuous culture. Journal of Dairy Science, 82: 153-160.‏

Block, E., Dépatie, C., Lefebvre, D. and Petitclerc, D. 1998. L’urée du lait: les sources de variation et les implications. Conseil des Productions Animales du Québec (CPAQ), Québec, Canada (pp. 77-87)

Broderick, G.A. and Radloff, W.J. 2004. Effect of molasses supplementation on the production of lactating dairy cows fed diets based on alfalfa and corn silage. Journal of Dairy Science, 87: 2997-3009.‏

Broderick, G.A., Luchini, N.D., Reynal, S. M., Varga, G. A. and Ishler, V. A. 2008. Effect on production of replacing dietary starch with sucrose in lactating dairy cows. Journal of Dairy Science, 91: 4801-4810.‏

Broderick, G.A., Mertens, D. R. and Simons, R. 2002. Efficacy of carbohydrate sources for milk production by cows fed diets based on alfalfa silage. Journal of Dairy Science, 85: 1767-1776.‏

Broderick, G.A., Stevenson, M.J. and Patton, R.A. 2009. Effect of dietary protein concentration and degradability on response to rumen-protected methionine in lactating dairy cows. Journal of Dairy Science, 92: 2719-2728.

Butler, W.R., Calaman, J.J. and Beam, S. W. 1996. Plasma and milk urea nitrogen in relation to pregnancy rate in lactating dairy cattle. Journal of Animal Science, 74: 858-865.‏

Calomeni, G.D., Gardinal, R., Venturelli, B.C., Freitas Júnior, J.E.D., Vendramini, T.H.A., Takiya, C.S. and Rennó, F.P. 2015. Effects of polymer-coated slow-release urea on performance, ruminal fermentation, and blood metabolites in dairy cows. Revista Brasileira de Zootecnia, 44: 327-334.‏

Can, A., Denek, N. and Yazgan, K. 2005. Effect of replacing urea with fish meal in finishing diet on performance of Awassi lamb under heat stress. Small ruminant Research, 59: 1-5.

Casper, D. P. and Schingoethe, D.J. 1986. Evaluation of urea and dried whey in diets of cows during early lactation. Journal of Dairy Science, 69: 1346-1354.

Chamberlain, D.G., Thomas, P.C., whison, C.J. and Macdonald, J.C. 1985. The Effects of carbohydrate supplements on ruminal concentrations of ammonia in animals given diets of grass silage. The Journal of Agricultural Science, 104: 331-340.

Church, D.C. 1991. Livestock feeds and feeding (No. Ed. 3). Prentice Hall.‏

Coombe, J. B. and Mulholland, J. G. 1983. Utilization of urea and molasses supplements by sheep grazing oat stubble. Australian Journal of Agricultural Research, 34: 767-780.‏

Daley, C. A., Abbott, A., Doyle, P. S., Nader, G. A. and Larson, S. 2010. A review of fatty acid profiles and antioxidant content in grass-fed and grain-fed beef. Nutrition journal, 9: 1- 10.‏

Douglas, G.N., Overton, T.R., Bateman, H.G. and Drackley, J.K. 2004. Peripartal metabolism and production of Holstein cows fed diets supplemented with fat during the dry period. Journal of Dairy Science, 87: 4210–4220.

Firkins, J. 2010. Addition of sugars to dairy rations. Page 91-105 in Tri-state dairy nutrition conference.

Firkins, J.L., Oldick, B.S., Pantoja, J., Reveneau, C., Gilligan, L.E. and Carver, L. 2008. Efficacy of liquid feeds varying in concentration and composition of fat, nonprotein nitrogen, and nonfiber carbohydrates for lactating dairy cows. Journal of Dairy Science, 91: 1969-1984.

Florendo, P.C., Aquino, D.H., Duran, N.D., Lorenzo, F.P. and V. Manuad, F. 1995. Development and utilization of urea- molasses- mineral block lick for milk production of buffaloes. Buffalo Bulletin, 10: 13-25.

Galo, E., Emanuele, S. M., Sniffen, C. J., White, J.H. and Knapp, J.R. 2003. Effects of a polymer-coated urea product on nitrogen metabolism in lactating Holstein dairy cattle. Journal of Dairy Science, 86: 2154-2162.‏

Giallongo, F., Hristov, A.N., Oh, J., Frederick, T., Weeks, H., Werner, J., Lapierre, H., Patton, R. A., Gehman, A. and Parys, C. 2015. Effects of slow-release urea and rumen-protected methionine and histidine on performance of dairy cows. Journal of Dairy Science, 98: 3292–3308.

Golombeski, G.L., Kalscheur, K.F., Hippen, A.R. and Schingoethe, D.J. 2006. Slow-release urea and highly fermentable sugars in diets fed to lactating dairy cows. Journal of Dairy Science. 89: 4395- 4403.

Grings, E. E., Roffler, R. E. and Deitelhoff, D. P. 1992. Responses of dairy cows to additions of distillers dried grains with solubles in alfalfa-based diets. Journal of Dairy Science, 75: 1946-1953.‏

Gustafsson, A. H. and Palmquist, D. L. 1993. Diurnal variation of rumen ammonia, serum urea, and milk urea in dairy cows at high and low yields. Journal of Dairy Science, 76: 475-484.‏

Hristov, A.N. and Ropp, J.K. 2003. Effect of dietary carbohydrate composition and availability on utilization of ruminal ammonia nitrogen for milk protein synthesis in dairy cows. Journal of Dairy Science, 86: 2416–2427.

Ichinohe, T. and Fujihara, T. 2008. Adaptive changes in microbial synthesis and nitrogen balance with progressing dietary feeding periods in sheep fed diets differing in their ruminal degradation synchronicity between nitrogen and organic matter. Journal of Animal Science,79: 322-331.

Inostroza, J.F., Shaver, R.D., Cabrera, V.E. and Tricárico, J.M. 2010. Effect of diets containing a controlled release urea product on milk yield, milk composition, and milk component yields in commercial Wisconsin dairy herds and economic implications. Journal Dairy Science, 76: 2692-2700.

Jain, N., Tiwari, S.P. and Singh, P. 2005. Effect of urea molasses mineral granules (UMMG) on rumen fermentation pattern and blood biochemical constituents in goat kids fed sola (Aeschonomene indica Linn) grass-based diet. Veterinary Archive, 75: 521-530.

Jouany, J. 1982.Volatlile fatty acid and alcohol determination in digestive contents, silage juices, bacterial cultures and anaerobic fermentor contents. Sciences Des Aliments, 2: 131-144.

Khan, M. I., Ahmed, S., Rahman, A., Ahmad, F., Khalique, A., Nisar, A. and Azam, B. E. 2015. Comparative efficacy of urea and slow-release non-protein nitrogen on performance of Nili-Ravi buffalo calves. Pakistan Journal of Zoology, 47: 1097-1102.

Khorasani, G. R., Okine, E. K. and Kennelly, J. J. 2001. Effects of substituting barley grain with corn on ruminal fermentation characteristics, milk yield, and milk composition of Holstein cows. Journal of Dairy Science, 84: 2760–2769.

Lizarazo, A.C., Mendoza, G.D., Melgoza, L.M. and Crosby, M. 2014. Effects of slow-release urea and molasses on ruminal metabolism of lambs fed with low – quality tropical forage. Small Ruminant Research, 116: 28-31.

Nagaraja, T. G. and Titgemeyer, E. C. 2007. Ruminal Acidosis in Beef Cattle: The Current Microbiological and Nutritional Outlook, Journal of Dairy Science, 1: 17-38.

NRC. 2001. Nutrient equirements of Dairy Cattle. Seventh Revised Edition. National Academy Press, Washington.

Ørskov, E. 1975. Trails and trials in livestock research. Macaulay Land Use Research Institute.

Penner, G.B. and Oba, M. 2009. Increasing dietary sugar concentration may improve dry matter intake, ruminal fermentation, and productivity of dairy cows in the postpartum phase of the transition period. Journal of Dairy Science, 92: 3341-3353.

Pinos-Rodríguez, J.M., Peña, L.Y., González-Muñoz, S.S.R., Bárcena, R. and Salem, A. 2010. Effects of a slow release coated urea product on growth performance and ruminal fermentation in beef steers. Italian Journal of Animal Science, 9: 16-19.

Puga, D. C., Galina, H. M., Peréz-Gil, R. F., Sangines, G. L., Aguilera, B. A., Haenlein, G. F. W. and Herrera, H. J. G. 2001. Effect of a controlled-release urea supplementation on feed intake, digestibility, nitrogen balance and ruminal kinetics of sheep fed low quality tropical forage. Small Ruminant Research, 41: 9-18.‏

Razaghi, A., Valizadeh, R., Naserian, A. and Danesh Mesgaran, M. 2016. The effect of adding sucrose and sunflower seed to the diet on lactation performance and rumen fermentation pattern in dairy cows. Journal of Ruminant Research, 1: 123-143. (In Persian).

Ribeirao, S.S., Vasconcelos, J.T., Moraisa, M.G., Ítavoa, C.B.C.F. and Franco, G.L, 2011. Effects of ruminal infusion of a slow-release polymer-coated urea or conventional urea on apparent nutrient digestibility, in situ degradability, and rumen parameters in cattle fed low-quality hay. Animal Feed Science and Technology, 164: 53- 61.

Richardson, J.M., Wilkinson, R.G. and Sinclair, L.A. 2003. Synchrony of nutrient supply to the rumen and dietary energy source and their effects on the growth and metabolism of lambs. Journal of Dairy Science, 81: 1332-1347.

Samanta, A.K. and Dass, R.S. 2007. Effect of Vitamin E supplementation on growth, nutrient utilization, blood biochemical and enzymatic profile in male crossbred (Bos indicus x Bos taurus) calves. International Journal of Cow Science, 3: 34-43.

Tiwari, S.P., Singh, U.B. and Mehra, U.R. 1990. Urea molasses mineral blocks as a feed supplement: effect on growth and nutrient utilization in buffalo calves. Animal Feed Science and Technology, 29: 333-341.‏

Van Keulen, J. and Young, B. 1977. Evaluation of acid-insoluble ash as a natural marker in ruminant digestibility studies. Journal of Animal Science, 44: 282-287.

Van Soest, P.J. 1994. Nutritional Ecology of the Ruminant. Cornell University Press, Ithaca.

Van Soest, P.J., Robertson, J. and Lewis, B. 1991. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science, 74: 3583-3597.

Van Vuuren, A. M., Van der Koelen, C. J. and Vroons-De Bruin, J. 1993. Ryegrass versus corn starch or beet pulp fiber diet effects on digestion and intestinal amino acids in dairy cows. Journal of Dairy Science, 76: 2692-2700.

Yang, J.Y., Seo, J., Kim, H.J., Seo, S. and Ha, J.K. 2010. Nutrient synchrony: Is it a suitable strategy to improve nitrogen utilization and animal performance. Asian-Australian Journal of Animal Science, 23: 972-979.