The quality of farm-scale alfalfa silages

Received: 2015-11-03   |   Accepted: 2016-01-29   |   Available online: 2016-05-30dx.doi.org/10.15414/afz.2016.19.02.54-58The aim of the work was to determine the nutritive and fermentation quality of farm-scale alfalfa silages from West part of Slovakia, analyzed in 2014 on the Department of Animal Nutrition, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra. In alfalfa silages, we found the average dry mater content 372.66 g.kg-1, while 30 % of samples had lower dry mater content than 350 g.kg-1. Only 15 % of samples had higher content of crude protein than 200 g. We don't found content of ADF lower than 300 g.kg-1 of DM in any sample. In alfalfa silages was higher content of NDF than 37.5 % in 70 % of alfalfa silages. The lactic acid content was higher than 10 g of the original mater in all samples except one, ranged from 0.73 to 14.67 % on a dry matter basis. Average content of acetic acid was 29.82 g.kg-1 of DM. Undesirable butyric acid was found in 35 % of samples with average content 8.44 g.kg-1 of DM, with maximal content 108.25 g.kg-1 of DM.Keywords: alfalfa, silage, nutritive value, fermentation, qualityReferencesBaumont, R. (1996) Palatability and feeding behaviour in ruminants. A review. Annales de Zootechnie, vol. 45, no. 5, pp. 385-400. doi:http://dx.doi.org/10.1051/animres:19960501Bíro, D. et al. (2010) Influence of bacterial-enzyme additive on fermentation process of faba bean, alfalfa and oat mixture silages. In Forage Conservation. Brno 17-19.3. 2010. Brno: Mendel University, pp. 145-147.Bíro, D. et al. (2014) Conservation and Adjustment of Feed. Nitra: Slovak University of Agriculture (in Slovak).Daniel, J. L. P. et al. (2013) Performance of dairy cows fed high levels of acetic acid or ethanol. Journal of Dairy Science, vol. 96, no. 1, pp. 398-406.  doi:http://dx.doi.org/10.3168/jds.2012-5451Doležal, P. et al. (2012) Feed Conservation. Olomouc: Petr Baštan (in Czech).Gerlach, K. et al. (2014) Aerobic exposure of grass silages and its impact on dry matter intake and preference by goats. Small Ruminant Research, vol. 117, no. 2-3, pp. 131-141. doi: http://dx.doi.org/10.1016/j.smallrumres.2013.12.033Huhtanen,  P. et al. (2002) Prediction of the relative intake potential of grass silage by dairy cows. Livestock Production Science, vol. 73, no. 2-3, pp. 111-130. doi: http://dx.doi.org/10.1016/S0301-6226(01)00279-2Charmley, E. (2001) Towards improved silage quality. A review. Canadian Journal of Animal Science, vol. 81, no. 2, pp. 157-168. doi:http://dx.doi.org/10.4141/CJAS10071Jendrišáková, S. (2010) Determination of protein digestible in intestine by NIRS-method in forages for ruminants. Acta fytotechnica et zootechnica, vol. 13, no. 2, pp. 54-57. Retrieved from http://www.slpk.sk/acta/docs/2010/afz02-10/jendrisakova.pdfKung, L. and Shaver, R. (2001) Interpretation and use of silage fermentation analysis reports. Focus on Forage, vol. 3, no. 13, pp.1-5.Kung, L. (2010) Understanding the biology of silage preservation to maximize quality and protect the environment. In Proceedings, 2010 California Alfalfa & Forage Symposium and Corn/Cereal Silage Conference. Visalia, California 1-2. 12. 2010. University of California, pp. 1-14.Mitrík, T. (2010) Evaluation of quality and nutritive value of forage : Ph.D. Thesis. Košice: University of Veterinary Medicine and Pharmacy,. pp.126-130.Muck R. E., Moser, L. E. and Pitt, R. E. (2003) Postharvest factors affecting ensiling. In: Buxton, D. et al. (eds) Silage Science and Technology. No. 42 in the series Agronomy. Madison: Wisconsin, pp. 251-304.Pajtáš, M. et al. (2009) Nutrition and animal feeding. Nitra: Slovak University of Agriculture in Nitra (in Slovak).Petrikovič, P. et al. (2000) Nutritive value of feed I. part. Nitra: Research institute of animal production (in Slovak).Rajčáková, Ľ. and Mlynár, R. (2009) The principles of use of the potential of silage and preservative additives in the production of high quality and hygienically safe conserved feed. [Online]. Retrieved May 29, 2015 from http://www.cvzv.sk/pdf/Konzervacia-a-silazovanie-krmiv/Silazovanie-metodicka%20prirucka.pdf (in Slovak).Regulation of the Government of Slovak Republic no. 439/2006, appendix no.7, part G, Nutritive value of feeds (in Slovak).Regulation of the Slovak Ministry of Agriculture no. 2136/2004-100 about sampling of feeds and about laboratory testing and evaluation of feeds. (in Slovak).SAS Institute Inc. (2008) SAS/STAT® 9.2 User's Guide. Cary, NC: SAS Institute Inc.Seglar, B. (2003) Fermentation analysis and silage quality testing. In Proceedings of the Minnesota Dairy Health Conference College of Veterinary Medicine. University of Minnesota, pp.119-136. [Online].  Retrieved May 29, 2015 from http://www.cvm.umn.edu/dairy/prod/groups/cvm/@pub/@cvm/documents/asset/cvm_22260.pdfShaver, R. D. (2013) Practical application of new forage quality tests. [Online].  Retrieved May 29, 2015 from http://ext100.wsu.edu/wallawalla/wp-content/uploads/sites/45/2013/07/New-Forage-Quality-Tests.pdfSchmidt, P. et al. (2014) Effects of Lactobacillus buchneri on the nutritive value of sugarcane silage for finishing beef bulls. Revista Brasileira de Zootecnia, vol. 43, no.1, pp. 8-13. doi:http://dx.doi.org/10.1590/S1516-35982014000100002 Steinshamn, H. (2010) Effect of forage legumes on feed intake, milk production and milk quality – a review. Animal Science Papers and Reports, vol. 28, no. 3, pp. 195-206. Retrieved from http://www.ighz.edu.pl/?p0=5&p1=34&o=2998Škultéty, M. (1999) Evaluation of quality in silages. In Forage conservation. Nitra 6.-8. 9. 1999. Nitra: Research Institute of Animal Production, pp. 46-49 (in Slovak).Tabacco, E. et al. (2002) Effect of cutting frequency on dry matter yield and quality of lucerne (Medicago sativa L.) in the Po Valley. Italian Journal of Agronomy, vol. 6, no.1, pp. 27-33. Retrieved from https://www.researchgate.net/publication/228598490_Effect_of_cutting_frequency_on_dry_matter_yield_and_quality_of_lucerne_Medicago_sativa_L_in_the_Po_ValleyTabacco, E. et al. (2006) Effect of chestnut tannin on fermentation quality, proteolysis, and protein rumen degradability of alfalfa silage. Journal of  Dairy Science, vol. 89, no. 12, pp. 4736-4746. doi:http://dx.doi.org/10.3168/jds.S0022-0302(06)72523-1Van Saun, R. J. (2008) Troubleshooting silage problems: how to identify potential problems. [Online].  Retrieved May 29, 2015 from http://extension.psu.edu/animals/health/metabolic-profiling/bibliography/Bunksilo.pdfVyskočil, I. et al. (2008) Pocket catalog of feedstuffs. [Online].  Retrieved May 29, 2015 from http://web2.mendelu.cz/pcentrum/publikace/53_kapesni_katalog_krmiv.pdf (in Czech).Ward, R.T. (2008) Fermentation analysis of silage: use and interpretation. [Online].  Retrieved May 29, 2015 from http://www.foragelab.com/media/fermentation-silage-nfmp-oct-2008.pd