摘要
This study with some agro-byproducts was carried out to provide information on the use of fermentation by-products; brewer’s dried grains (BDG), rice bran (RB), palm kernel meal (PKM) and corn bran (CB). Changes in the nutrient compositions of some selected agro industrial by-products on biodegradation with Trichoderma viride and their feeding value as an energy source for layers were investigated. The protein in BDG, RB, PKM and CB increased by 87, 68, 32 and 61%, respectively, when they were fermented with the fungi for 14 days. At the same time, the fiber in the by-products decreased by 35.00, 40.00, 36.50 and 37.50%, respectively with a corresponding increase of 49.00, 37.00, 9.00 and 5.50% in the level of soluble sugars. The energy in the biodegraded by-products increased by 6.30, 5.00, 9.00 and 18.50%, respectively. In a feeding trial with layers, 50% of the maize in a standard commercial diet was replaced with biodegraded BDG, RB and PKM. Birds on the BDG and RB diets had significantly (P<0.05) higher hen day production than those on the other diets. Diets in which the biodegraded by-products replaced maize produced lower cost of egg production than the standard commercial diet. Of the test diets, BDG gave the lowest cost of US$0.38 per tray of eggs (30 eggs) compared with US$0.53 for the commercial diet. Results of the study showed that fungal biodegradation of the agro industrial by-products can enhance their nutritional status. Using such by-products to feed layers spared half of the maize in the diet and produced better laying performance.
摘要译文
进行了一些农副产品的研究，以提供有关发酵副产物使用的信息;啤酒干谷物（BDG），米糠（RB），棕榈仁粕（PKM）和玉米糠（CB）。研究了一些选定的农业工业副产品对绿色木霉生物降解的营养成分的变化及其作为层的能源的进料值。 BDG，RB，PKM和CB中的蛋白质在真菌发酵14天后分别增加了87％，68％，32％和61％。同时，副产物纤维分别下降35.00,40.00,36.50和37.50％，可溶性糖含量相应增加49.00％，37.00％，9.00％和5.50％。生物降解副产物的能量分别增加了6.30％，5.00％，9.00％和18.50％。在具有层的饲养试验中，标准商业饮食中50％的玉米被生物降解的BDG，RB和PKM替代。 BDG和RB日粮中的鸟类与其他日粮相比，母鸡日产量显着（P <0.05）。生物降解的副产品替代玉米的饮食比标准商业饮食产生更低的产蛋成本。在测试饮食中，BDG给予每托盘鸡蛋（30个鸡蛋）0.38美元的最低成本，而商业饮食则为0.53美元。研究结果表明，农业工业副产品的真菌生物降解可以提高其营养状况。使用这些副产品来喂养层中的一半玉米，并且产生更好的铺设性能。
Eustace A. Iyayi*;Zaid A. Aderolu. Enhancement of the feeding value of some agro-industrial by-products for laying hens after their solid state fermentation with Trichoderma viride[J]. African Journal of Biotechnology, 2004,3(3): 182-185