Quality, chemical composition and nutritional value at joint corn and sorghum crops

DOI: 10.32900/2312-8402-2019-121-95-103

Drozdov Sergey,
Drozdova Oksana,
Institute of Animal Science NAAS of Ukraine

Keywords: silage, corn, sorghum, joint crops, nutrients, chemical composition


The article highlights the investigation results of studies of the chemical composition and nutritional value of silage prepared from joint sowing of corn with various FAO and sorghum. On average, silage from green mass of corn and sorghum contained less than 1.03 % absolute protein, 0.31 % fat and more than 7.42 % fiber, calculated on the absolutely dry substance. Differences in chemical composition caused the nutritional value reduction of the silage from green mass of corn and sorghumjoint crops an average of 12 variants from 10.38 to 9.23 MJ per 1 kg of dry matter.
The content and ratio of acids in silos, specifically, the predominance of lactic acid and the absence of butyric acid, were determined. A higher content of acetic acid was established in silos from the green mass of landed crops, but this difference was not significant.
Using the content of butyric and acetic acids, as well as the pH, they the coefficient of fermentation was calculated and the absence of a reliable difference by this indicator between corn and corn-sorghum silage was established.
Corn hybrids with optimal FAO had been identified; its use in joint crops with sorghum will provide silage obtaining which quality is not inferior to corn crops, it will contribute to ensuring a stable forage base for highly productive animal husbandry. At the proper selection of corn hybrid, a reduction in the protein conten, compared to corn silage, almost does not occur. On the best options, the difference in the content of crude protein is only 0.1-0.2 % in terms of absolutely dry substance. Correct selection of corn hybrids allows to reduce the DOE content in experimental silage compared with corn silage from 1.1-1.6 to 0.5-0.7 MJ kg of dry substance.


  1. Forage Sorghum Variety Trials. Results from Texas and New Mexico. Published 2013 by the Sorghum Checkoff. Retrieved from : www/sorghumcheckoff.com
  2. Rudenko N. (2019). Pro perspektivi [About prospects]. Agro perspektiva [Agro perspective], 1–2 (219–220), 56–58 [in Ukrainian]
  3. Corriher V. A., Hill G. M., Bernard J. K., Mullinix B. G. (2010). Performance of Finishing Steers on Corn Silage or Forage Sorghum Silage with Corn Oil Supplementation. The Professional Animal Scientist, 26, 387–392.
  4. Dhiman T. R., Bal M. A., Wu Z, Moreira V. R., Shaver R. D., Salter L. D., Shinners К. J., Walgenbach R. P. (2000). Influence of mechanical processing on utilization of corn silage by lactating dairy cows. J. Dairy Sc., 83, № 11, 2521–2528.
  5. John K. Bernard Forage Sorghum for Dairy Cattle. Retrieved from : https://articles.extension.org/pages/71948/forage-sorghum-for-dairy-cattle
  6. Podkówka Z., Podkówka L. (2011). Chemical composition and quality of sweet sorghum and maize silages. J. of Central European Agriculture, 12 (2), 294–303.
  7. Guyer, Paul Q. (1978). “G78-395 Feeding Corn and Sorghum Silages to Beef Cattle”. Historical Materials from University of Nebraska- Lincoln Extension, 1978. Retrieved from : http://digitalcommons.unl.edu/extensionhist
  8. Bogdarev V. A., Kosolapov V. M., Pobednov Ju. A., Panov A. A., Ahlamov Ju. D., Otroshko S. A. et al. (2008). Provedenie opytov po konservirovaniju i hraneniju ob#emistyh kormov [Conducting experiments on the conservation and storage of forage]. Moscow : FGU RCSK [in Russian]
  9. Cjupko, V. V., & Pronina V. V., Berus M. V., Bublik V. I., Vasilevskij N. V., Zlobina G. S. et al (1989). Metodicheskie rekomendacii po normirovaniju jenergii v kormlenii krupnogo rogatogo skota – Guidelines for the regulation of energy in feeding cattle]. Har’kov [in Russian]
  10. Praxishandbuch. Futterkonservierung: Silagebereitung, Siliermittel, Dosiergeräte, Silofolien. (2006). Frankfurt am Main : DLG-Verl.