Nutritional Traits of Silage Produced from Alfalfa (Medicago sativa L.) Cultivated Using Conventional Technology versus Organic Technology in Support of Higher Dairy Productions
Keywords:alfalfa, chemical composition, feed, livestock, nutritional traits
As consequence of increasing need of higher livestock productions, in conditions of assuring environmental sustainability, comparative tests of properties of forages obtained by application of conventional technologies compared with those obtained as result of organic practices, may be useful. Thus our trial covers issues concerning comparative study of nutritional traits, expresses through chemical composition indices, of silage obtained from alfalfa resulted from two types of cultivation technologies, conventional, and organic, respectively. The experiment was carried out in a familiar farm located near Huedin, County of Cluj, Romania. Higher contents of dry matter, acid detergent fibre, and ammonia are reported in silage obtained from alfalfa cultivated in organic technology, compared to silage obtained from alfalfa conventionally produced. The ammonia content of silage obtained from alfalfa cultivated using conventional technology, reported as % from dry matter, is the single chemical index where high diversity within individual values was identified. Correlations of similar intensities were identified between the indices of the chemical composition of the silage obtained from both, conventionally and organic, cultivated alfalfa. The alfalfa cultivated in organic system promotes higher amounts of crude protein, neutral detergent fibre, and total volatile fatty acids, in alfalfa silage.
AOAC International (2005). Of?cial methods of analysis. 18th Association of Of?cial Analytical Chemists, Gaithersburg, MD.
Basset-Mens C, Ledgard S, Boyes M (2009). Eco-ef?ciency of intensi?cation scenarios for milk production in New Zealand. Journal of Ecology and Economy 68:1615-1625.
Dewhurst RJ, Fisher WJ, Tweed JKS, Wilkins RJ (2003). Comparison of grass and legume silages for milk production. 1. Production responses with different levels of concentrate. Journal of Dairy Science 86:2598-2611.
Gallo A, Moschini M, Cerioli C, Masoer F (2013). Use of principal component analysis to classify forages and predict their calculated energy content. Animal 7(6):930-939.
Hole DG, Perkins AJ, Wilson JD, Alexander IH, Grice PV, Evans AD (2005). Does organic farming benefit biodiversity? Biological Conservation 122:113-120.
Hristov AN, Price WJ, Shafii B (2004). A meta-analysis examining the relationship among dietary factors, dry matter intake, and milk and milk protein yield in dairy cows. Journal of Dairy Science 87:2184-2196.
Hristov AN, Price WJ, Shafii B (2002). An overview of dietary factors influencing dry matter intake and milk and milk protein yields in dairy cows. Proceedings of Pacific Northwest Animal Nutrition Conference pp 147-165.
Jenkins TC, McGuire MA (2006). Major advances in nutrition: Impact on milk composition. Journal of Dairy Science 89:1302-1310.
Larsen MK, Nielsen JH, Butle G, Leifert C, Slots T, Kristiansen GH, Gustafsson AH (2010). Milk quality as affected by feeding regimens in a country with climatic variation. Journal of Dairy Science 93:2863-2873.
Leduc M, Gervais R, Tremblay GF, Chiquette J, Chouinard PY (2017). Milk fatty acid profile in cows fed red clover-or alfalfa-silage based diets differing in rumen-degradable protein supply. Animal Feed Science and Technology 233:59-72.
Norton LR, Johnson PJ, Joys AC, Stuart RC, Chamberlain DE, Feber RE, … Fuller RJ (2009). Consequences of organic and non-organic farming practices for field, farm and landscape complexity. Agriculture, Ecosystems and Environment 129(1-3):221-227.
Stiglbauer KE,Cicconi-Hogan KM, Richert R, Schukken YH, Ruegg PL, Gamroth M (2013). Assessment of herd management on organic and conventional dairy farms in the United States. Journal of Dairy Science 96:1290-1300.
Verbruggen E, Roling WFM, Gamper HA, Kowalchuk GA, Verhoef HA, van der Heijden MGA (2010). Positive effects of organic farming on below-ground mutualists: large-scale comparison of mycorrhizal fungal communities in agricultural soils. New Phytologist 186:968-979.
Wood R, Lenzen M, Dey C, Lundie S (2000). A comparative study of some environmental impacts of conventional and organic farming in Australia. Agricultural Systems 89:324-348.
How to Cite
Open Access Journal:
The journal allows the author(s) to retain publishing rights without restriction. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author.