Document Type : Research Paper
Authors
1 Animal Sceince Reaserch Institute
2 Tehran university
Abstract
This experiment carried out to determine the nutritional value of 18 sorghum forage varieties and to introduce superior cultivars using multicriteria decision-making technology. They sow in early June and harvested in mid-November. Random samples were taken from the center of each experimental plot in a way that ten plants were cut from 10 cm above soil. These samples were cut into 3 to 5 cm pieces, each
cultivar had three samples, in total 54 samples were collected. Yield and nutrient contents such as, crude protein, crude ash, ADF, NDF, water-soluble carbohydrates, starch and lignin measured in the experimental cultivars. The metabolizable energy of sorghum cultivars estimated by gas test method using the amount of gas produced in 24 hours and the amount of crude protein contained in it. Sorghum
cultivars ranked based on 11 integrated traits. Among the domestic cultivars, Spidfeed ranked fifth among all varieties, followed by KFS-18 ranked seven and pegah ranked 10th and KFS-2 ranked 12th with moderate quantitative and qualitative performance. Overall, based on the results of the multi-criteria decision-making method, it was found that the top three sorghum cultivars are Siloking, FGCSI12 and PHFS-27, respectively, which are recommended for sorghum forage production and silage for dairy farmers.
Keywords
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