Preliminary Ruminant Digestibility Evaluation of some Romanian Winter Barley Genotypes Grown on Two Levels of N fertilization
Keywords:
barley, ruminant digestibilityAbstract
The aim of the study was to evaluate the effects of nitrogen N levels on ruminant digestibility of 18 different Romanian barley genotypes grown in 2013/2014 year. The experiment was designed as randomized blocks and two levels of N were tested: 46 and 92 kg ha-1 (blocks N-46 and N-92) and compared to control block N-0, without nitrogen. The grains were analyzed for chemical composition and in vitro ruminant digestibility IVOMD. The resulted grains yield (t/ha) was significantly lowered by the 92 kg ha-1 N level. The same N fertilization level had a significant effect on increasing the crude protein content. But the mean IVOMD coefficient (%) of all genotypes was significantly decreased for both the N levels (84.45 for N-46, and 83.19 for N-92 compared to 86.92 for N-0).
References
Cleary, L. J., Van Herk, F., Gibb, D. J., McAllister T. A., Chaves, A. V., Dry Matter Digestion Kinetics of Two Varieties of Barley Grain Sown with Different Seeding and Nitrogen Fertilization Rates in Four Different Sites Across Canada, Asian-Aust. J. Anim. Sci., 2011, 24(7), 965–973.
O’Donovan, J. T., Turkington, T. K., Edney, M. J., Clayton, G.W., McKenzie, R. H., Juskiw, P. E., Lafond, G. P., Grant, C. A., Brandt, S., Harker, K. N., Johnson, E. N., May, W. E., Seeding rate, nitrogen rate and cultivar effects on malting barley production. Agron. J., 2011, 103, 709–716.
Nocek J. E., Tamminga S., Site of digestion of starch in the gastrointestinal tract of dairy cows and its effect on milk yield and composition, J. Dairy Sci., 1991, 74(10), 3598-3629.
Oscarsson M., Anderson, R., Åman, P., Olofsson, S., Jonsson, A., Effects of cultivar, nitrogen fertilizer rate and environment on yield and grain quality of barley. J. Sci. Food Agric., 1998, 78, 359–366.
Vasilachi Andreea, S. Pop, C. Dragomir, M. Vlassa, M. Filip, The Influence Of Replacing Slow With Rapid Starch In Growing Rams’ Diets On The Level Of Rumen Microbial Proteosynthesis, Biotechnology in Animal Husbandry 2010, 26 (5-6), 339-346.
Buxton D. R., Fales S. L., Plant environment and quality. In: Fahey, G. C., Jr., (Ed.) Forage Quality, Evaluation and Utilization. 1994, American Society of Agronomy, Inc. Crop Science Society of America, Inc. Soil Science Society of America, Inc. Madison, WI., pp. 155-199.
Bulman P., Smith D. Y., Yield Component Response of Spring Barley to Fertilizer Nitrogen, Agronomy Journal, 1993, 85, 223-231.
Delogu G. L., Cattivelli L., Pecchioni N., De Falcis D., Maggiore T., Stanca A. M., Uptake and Agronomic Efficiency of Nitrogen in Winter Barley and Winter Wheat, European Journal of Agronomy, 1997, 9,11-20.
Alazmani Alireza, Effect of Nitrogen Fertilizer on Feed and Grain Yield of Barley Cultivar, International Research Journal of Applied and Basic Sciences, 2014, vol. 8 (11), 2013-2015.
Akdeniz H., Kasli M. A., Ulker M., Oral E., Effects of Increasing Levels of N Fertilization on Yields and Nutrient Content of Different Barley Varieties Grown under Arid Condition, Journal of Animal and Veterinary Advances, 2006, 5(2), 150-155.
Shahnaj, Y., A. Moushumi and H. Belal, Yield and Seed quality of barley (Hordeum vulgare L.) as affected by variety, nitrogen level and harvesting time, International Journal of Agriculture and Crop Sciences, 2014, 7(5), 262-268.
McKenzie Ross, Agronomic and Fertilizer Management of Barley in Alberta, Agri-Facts, 2008, Agdex 114/540-2, November 2008, 1-10.
Verbeten Bill, Malting Barley Nutrient Management, USA Cornell Cooperative Extension, 2016, NWNY Dairy Livestock & Field Crop Team, Home page address: http://www.nwnyteam.org/
Vasilescu, L., Alionte E., Bude A., Winter Barley Varieties And Lines Behavior Regarding The Yield And Quality Stability During 2008-2013 At NARDI FUNDULEA, Annals of I.N.C.D.A. FUNDULEA, 2014, LXXXII, 69-82.
Petcu E., Bude A., Vasilescu L., Alionte E., Evaluation Of Some Winter Barley Genotypes For Drougjt Tolerance At Post-Anthesis Stage By Means Of Chemical Desiccation, Annals of I.N.C.D.A. FUNDULEA, 2014, LXXXII, 313-318.
Tilley J. M. A., Terry R. A., A two-stage technique for the in vitro digestion of forage crops, J. Brit. Grassl. Soc., 1963, 18, 104-111.
INRA, Alimentation des bovins, ovins et caprins - Besoins des animaux – Valeurs des aliments - Tables INRA Edition remaniée, Ed. Quae, 2010.
Burlacu Gh., Cavache A., Burlacu R., Potentialul productiv al furajelor si utilizarea lor, 2002, Ed. Ceres, Bucuresti.
Micek P., The effect of barley cultivar on in vitro digestibility and rumen degradability of NDF, Journal of Animal and Feed Sciences, 2006, 15, Suppl. 1, 31–34.
