نوع مقاله : مقاله پژوهشی
نویسندگان
گروه علوم دامی دانشکده کشاورزی و منابع طبیعی دانشگاه اراک.
چکیده
تعداد 48 راس بره فراهانی با سن 10 روز (8/1 ± 8/6 کیلوگرم وزن بدن)در قالب طرح بلوک کاملا تصادفی (12n = ؛ در هر تیمار شامل 6 بره نر و 6 بره ماده) با آرایش فاکتوریل 2 × 2 برای سطح علوفه یونجه (پایین، 10 درصد؛ یا بالا، 30 درصد ماده خشک) و منبع غلات (ذرت در مقابل جو) مورد استفاده قرار گرفتند. بنابراین، تیمارهای آزمایشی شامل دانه جو با سطح 10 درصد علوفه یونجه؛ دانه جو با سطح 30 درصد علوفه یونجه؛ دانه ذرت با سطح 10 درصد علوفه یونجه و دانه ذرت با سطح 30 درصد علوفه یونجه بودند. تمامی بره‌ها دسترسی آزاد به آب و خوراک آغازین در طول اجرای آزمایش داشتند و در روز 60 آزمایش از شیر گرفته شدند... بره‌های دریافت‌کننده سطح پایین علوفه یونجه غلظت بتاهیدروکسی بوتیرات (BHB) بالاتری در سرم برای روز 30 و 60 آزمایش داشتند (به ترتیب 01/0P < و 02/0P =). بره‌های دریافت کننده جیره-های بر پایه جو در مقایسه با ذرت دارای نیتروژن اوره‌ای بالاتری در روز 60 آزمایش بودند. تیمارهای آزمایشی تاثیری بر خصوصیات رشد اسکلتی بره‌های شیرخوار در روز 30 و 60 آزمایشی نداشتند اما سطح بالای علوفه عرض کپل را در مقایسه با سطح پایین علوفه کاهش (01/0P <) داد. بطور کلی نتایج نشان داد که مکمل کردن علوفه یونجه در سطح بالا کاهش رشد بره‌های شیرخوار را در پی خواهد داشت. به هر حال، منبع غلات (جو در مقابل ذرت) تاثیری بر عملکرد بره‌های شیرخوار نداشت.
کلیدواژه‌ها
Baldwin, R.L., McLeod, K.R., Klotz, J.L., and Heitmann, R.N. (2004). Rumen development, intestinal growth and hepatic metabolism in the pre- and post-weaning ruminant. Journal of Dairy Science, 87(Supp (.: E55–E65.
Beiranvand, H., Ghorbani, G.R., Khorvash, M., Nabipour, A., Dehghan-Banadaky, M., Homayouni, A., and Kargar, S. (2014). Interactions of alfalfa hay and sodium propionate on dairy calf performance and rumen development. Journal of Dairy Science, 97:2270–2280.
Castells, L., Bach, A., Araujo, G., Montoro, C., and Terré, M. (2012). Effect of different forage sources on performance and feeding behavior of Holstein calves. Journal of Dairy Science, 95:286–293
Coverdale, J.A., Tyler, H.D., Quigley, J.D., Brumm, J.A. (2004). Effect of Various Levels of Forage and Form of Diet on Rumen Development and Growth in Calves. Journal of Dairy Science, 87:2554–2562.
Davis, C.L., and Drackley, J.K. (1998). The development, nutrition, and management of the young calf. Iowa State University Press, Ames, Iowa.
Drackley, J.K. (2008). Calf nutrition from birth to breeding. Veterinary Clinics North American Food Animal Practice. 24:55–86.
Greenwood, R.H., Morril, J.L., Titgemeyer, E.C., and Kennedy, G.A. (1997). A new method of measuring diet abrasion and its effect on the development of the forestomach. Journal of Dairy Science, 80:2534–2541.
Hammon, H.M., Schiessler, G., Nussbaum, A., and Blum, J.W. (2002). Feed intake patterns, growth performance, and metabolic and endocrinetraits in calves fed unlimited amounts of colostrum and milk by automate, starting in the neonatal period. Journal of Dairy Science, 85:3352–3362.
Hill, S.R., Hopkins, B.A., Davidson, S., Bolt, S.M., Diaz, D.E., Brownie, C., Brown, T., Huntington, G.B., and Whitlow, L.W. (2009). The addition of cottonseed hulls to the starter and supplementation of live yeast or mannanoligosaccharide in the milk for young calves. Journal of Dairy Science, 92:790–798.
Hill, T.M., Bateman, H.G., Aldrich, J.M., and Schlotterbeck, R.L. (2008). Effects of the amount of chopped hay or cottonseed hulls in a textured calf starter on young calf performance. Journal of Dairy Science, 91:2684–2693.
Hill, T.M., Bateman, H.G., Aldrich, J.M., and Schlotterbeck, R.L. (2010). Roughage amount, source, and processing for diets fed to weaned dairy calves. Professional Animal Scientist, 26:181- 187.
Huntington, G.B., Harmon, D.L., and Richards C.J. (2006). Sites, rates, and limits of starch digestion and glucose metabolism in growing cattle. Journal of Animal Science, 84(E Suppl.): E14–E24.
Imani, M., Mirzaei, M., Baghbanzadeh-Nobari, B., and Ghaffari, M. H. (2017). Effects of forage provision to dairy calves on growth performance and rumen fermentation: A meta-analysis and meta-regression. Journal of Dairy Science, 100:1136–1150.
Khan, M.A., Lee, H.J., Lee, W.S., Kim, H.S., Kim, S.B., Park, S.B., Baek, K.S., Ha, J.K., and Choi, Y.J. (2008). Starch source evaluation in calf starter: II. Ruminal parameters, rumen development, nutrient digestibility, and nitrogen utilization in Holstein calves. Journal of Dairy Science, 91:1140–1149.
Khan, M.A., Weary, D.M., and von Keyserlingk, M.A.G. (2011). Hay intake improves performance and rumen development of calves fed higher quantities of milk. Journal of Dairy Science, 94:3547–3553.
Kiran, D., and Mutsvangwa, T. (2007). Effects of barley grain processing and dietary ruminally degradable protein on urea-nitrogen recycling and nitrogen metabolism in growing lambs. Journal of Animal Science, 85:3391–3399.
Mirzaei, M., Khorvash, M., Ghorbani, G.R., Kazemi-Bonchenari, M., Riasi, A., Nabipour, A., and van den Borne, J.J.G.C. (2015). Effects of supplementation level and particle size of alfalfa hay on growth characteristics and rumen development in dairy calves. Journal of Animal Physiology and Animal Nutrition (Berl.), 99:553–564.
Mirzaei, M., Khorvash, M., Ghorbani, G.R., Kazemi-Bonchenari, M., Riasi, A., Soltani, A., Moshiri, B., and Ghaffari, M.H. (2016). Interactions between the physical form of starter (mashed versus textured) and corn silage provision on performance, rumen fermentation, and structural growth of Holstein calves. Journal of Animal Science, 94:678–686.
Nemati, M., Amanlou, H., Khorvash, M., Mirzaei, M., Moshiri, B., and Ghaffari, M.H. (2016). Effect of different alfalfa hay levels on growth performance, rumen fermentation, and structural growth of Holstein dairy calves. Journal of Animal Science, 94:1141–1148.
Norouzian, M.A., Valizadeh, R., and Vahmani, P. (2011) Rumen development and growth of Balouchi lambs offered alfalfa hay pre- and post-weaning. Tropical Animal Health Production, 43:1169–1174
Owens, F.N., Secrist, D.S., Hill, W.J., and Gill, D.R. (1998). Acidosis in cattle: a review. Journal of Animal Science, 76:275–286.
Russell, K.E., and Roussel, A.J. (2007). Evaluation of the Ruminant Serum Chemistry Profile. Veterinary Clinics: Food Animal Practice, 23: 403–426.
Sander, E.G., Warner, R.G., Harrison, H.N., and Loosley, J.K. (1959). The stimulatory effect of sodium butyrate and sodium propionate on the development of rumen mucosa in the young calf. Journal of Dairy Science, 42:1600–1605.
SAS Institute. 2005. SAS User’s Guide: Statistics. Release 9.2. SAS Institute Inc., Cary, NC.
Soltani, M., Kazemi-Bonchenari, M., Khaltabadi-Farahania, A.H., Afsarian, O. (2017). Interaction of forage provision (alfalfa hay) and sodium butyrate supplementation on performance, structural growth, blood metabolites and rumen fermentation characteristics of lambs during pre-weaning period. Animal Feed Science and Technology, 230: 77–86
Suarez, B.J., Reenen, C.G.V., Stokhofe, N., Dijkstra, J. and Gerrits, W.J. (2007). Effect of roughage source and roughage to consentrate ratio on animal performance and rumen development in veal calves. Journal of Dairy Science, 90.2390-2403.
Suarez, B.J., Reenen, C.G.V., Stokhofe, N., Dijkstra, J., and Gerrits, W.J.J., Van Vuuren, A.M., and Dijkstra, J. (2006). Effects of supplementing concentrates differing in carbohydrate composition in veal calf diets: II. Rumen development. Journal of Dairy Science, 89:4376–4386.
Terré, M., Pedrals, E., Dalmau, A., and Bach, A. (2013). What dopreweaned and weaned calves need in the diet: A high Fiber content or a forage source? Journal of Dairy Science, 96:5217–5225.
Van Soest, P.J., Robertson, J.B., and Lewis, B.A. (1991). Methods for dietary fiber, neutral detergent fiber nonstarch polysaccharide in relation to animal nutrition. Journal of Dairy Science, 74:3583-3597.
Warner, R.G. (1991). Nutritional factors affecting the development of a functional ruminant. A historical perspective. In cornell nutrition conference for feed manufacturers (USA).
Žitnan, R., Voigt, J., Schonhusen, U., Wegner, J., Kokardova, M., Hagemeister, H., Levkut, M., Kuhla, S., and Sommer, A. (1998). Influence of dietary concentrate to forage ratio on the development of rumen mucosa in calves. Arch Animal Nutrition, 51:279–291.
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