Corn Silage Quality in Vojvodina Province in Two Seasons
Keywords:
corn silage, forage quality, fiberAbstract
Corn is one of main crops in Serbia’s northern province of Vojvodina, and one of most important export products of Serbia. While majority of corn is used for grain production, lesser part is harvested for whole crop silage and used predominantly for cattle feeding. Irrigation is not widespread practice (”dry farming”) and corn silage yield and quality are under strong influence of season specific factors. Data on nutritional quality of corn silage samples from two seasons were obtained from Laboratory for quality control of feed and animal products of Department of Animal Science in Novi Sad, and used for comparison. Total of 80 samples were used. Corn silage samples from two seasons differed significantly in majority of analyzed parameters (crude fiber, crude fat, NDF, ADF and ADL) and observed differences can be attributed to different grain yield in two seasons. Corn silage samples from season with higher grain yield had significantly more fat, significantly less fiber (crude, NDF, ADF, ADL) and almost significantly (p=0,05) less crude protein. Differences in levels of dry matter and crude ash were not observed.
References
Statistical Office of the Republic of Serbia (2018) Statistical Yearbook of Serbia 2018. Statistical Office of the Republic of Serbia, Belgrade.
Tošić, I., Hrnjak, I., Gavrilov, M. B., Unkašević, M., Marković, S. B., & Lukić, T., Annual and seasonal variability of precipitation in Vojvodina, Serbia. Theoretical and applied climatology, 2014, 117(1-2), 331-341.
Mandić, V., Bijelić, Z., Krnjaja, V., Ružić-Muslić, D., Caro-Petrović, V., Ostojić-Andrić, D., & Petričević, M., Forage maize yield in function of rainfall in climatic conditions of Vojvodina (Republic of Serbia). Scientific Papers-Series A-Agronomy, 2017, 60, 491-494.
Milošević, D., Savić, S. M., Stojanović, V., & Popov-Raljić, J., Effects of precipitation and temperatures on crop yield variability in Vojvodina (Serbia). Italian Journal of Agrometeorology, 2015, 20, 35-46.
National Research Council, Nutrient requirements of dairy cattle: 2001. National Academies Press, 2001
Kendall, C., Leonardi, C., Hoffman, P. C., Combs, D. K., Intake and milk production of cows fed diets that differed in dietary neutral detergent fiber and neutral detergent fiber digestibility. Journal of dairy science, 2009, 92(1), 313-323.
Bogdanović, V., Đedović, R., Perišić, P., Stanojević, D., Petrović, M. D., Trivunović, S., Petrović, M. M., An assessment of dairy farm structure and characteristics of dairy production systems in Serbia. Biotechnology in Animal Husbandry, 2012, 28(4), 689-696.
Owens, F., Corn silage–facts, fantasies, and the future. In Florida Ruminant Nutrition Symposium , 2008, pp. 29-30.
Ferraretto, L. F., Shaver, R. D., Effects of whole-plant corn silage hybrid type on intake, digestion, ruminal fermentation, and lactation performance by dairy cows through a meta-analysis. Journal of dairy science, 2015, 98(4), 2662-2675.
Statistical Office of the Republic of Serbia (2015), Statistical Yearbook of Serbia 2015. Statistical Office of the Republic of Serbia, Belgrade