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Enogen Feed Corn (EFC; Syngenta Seeds, LLC) is genetically modified to express high concentrations of amylase. Our objective was to evaluate EFC as corn silage and as steam-flaked corn in diets fed to finishing cattle. A 2 x 2 factorial experiment was conducted with steers (n = 960; 388 ± 7.4 kg initial body weight), with factors consisting of silage source (Control or EFC) and grain source (Control or Enogen). Steers were blocked by initial body weight, assigned randomly within block to treatments, housed in 48 pens with 15 or 25 cattle per pen, and harvested after 138, 152, or 166 days on feed. Grains were steam flaked to densities of 360 or 386 g/L for Control and EFC, respectively. Diets (dry basis) consisted of 8% corn silage, 2% alfalfa hay, 74.5% flaked corn, 12% Sweet Bran, and supplement. Incidences of liver abscesses and carcass weights were recorded at harvest, and longissimus muscle area, 12th-rib subcutaneous fat thickness, marbling score, and USDA yield and quality grades were determined after 36 h of refrigeration. There were no interactions between grain source and silage source (P > 0.05) for feedlot performance. Cattle fed diets containing EFC silage consumed less dry matter (P < 0.01) and efficiency of gain was improved by approximately 5.3% (P < 0.01) compared to cattle fed Control silage. Average daily gain and dry matter intake were unaffected by grain source, but cattle fed EFC grain were less efficient (P = 0.02) compared to cattle fed control grain. Carcass weight was greater for cattle fed the combination of EFC silage and Control grain compared to other treatments (P < 0.05), but liver abscess incidence and other carcass measurements were unaffected by grain or silage source. Feeding Enogen Feed Corn as corn silage, but not as grain, improved feedlot performance of steers. Keywords: Enogen, corn silage, amylase

he hydroponic under Egyptian condition take more attention in the last decade. The experiment was conducted under net house in intensive hydroponic system and replicated three times during January and February 2017. The study was done to evaluate vegetative characteristics and quality properties of produced sprouting of six barley cultivars (Giza123,126,127,128,129 and130). The results observed that the sprouting can be produce in 8 days from planting to harvest using hydroponic technique under the net house conditions. The Highest green barley fodder was recorded with Giza 127 followed by 129 which gave 6.98, 6.83 Kg, respectively compared with other strain. The results indicated that the highest value of fresh sprout: seeds weight ratio was recorded significantly by Giza 127 followed by Giza 129 compared to the other four cultivars. The crude protein values in several green fodder barley species significant (P<0.05) increase (the range from 11.56 to 13.45%) compared with its grains (the range from 9.58 to 12.60%). The highest values CP% in green fodder barley recorded with (Giza 127) was (13.45% on DM basis). There were a significantly (P<0.05) increase for CF% between green fodder barley species (the range from 9.93 to 14.36) in 8-days sprouting compared with the several original barley grains (the range from 5.67 to 8.85%). Also, the EE were significant increased except (Giza 129 and Giza 130) were decreased. The highest significant values NDF was recorded (37.47%) with (Giza 123) compared several cultivator Green fodder barley species, but ADF was recorded (17.93) with (Giza 127). The highest significant values ADF and acid insoluble ash were recorded (5.91 and 1.78) with (Giza 130) compared several cultivator Green fodder barley species. The highest significant values hemicellulose was recorded (20.85%) with (Giza 123), celluloses was recorded (12.63%) with (Giza 126) compared several cultivator Green fodder barley species. however, significant increased NDF-cell soluble was recorded (80.88) with (Giza 130). The parameters of nutritive values are predication from chemical composition observed significant increase of DCP between seed barley and several cultivator Green fodder barleys except Giza (129) and (130). The highest result values of DCP cultivator Green fodder barley was recorded with (Giza127) the value increase from7.67% in seed to 8.44%in sprouting. The DDM and DMI were significantly decrease in all several cultivator Green fodder barleys compared with seed barley. Also, several cultivator Green fodder barley productions observed significantly decreased of TDN in all strains compared with its seeds. The parameters of energy values are predication from chemical composition of Egyptian barley for seed (

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