Dried Brewers Grains Research Articles

An Improvement in Interior Egg Quality by the Feeding of Brewers Dried Grains

Two experiments were conducted to determine the influence of feeding brewers dried grains (BDG) upon interior quality of eggs. Four basal diets containing 11.84, 13.07, 14.30, or 16.00% protein were fed for a ten-month experimental period. In addition, in Experiment 1 diets containing 13.07 and 14.30% protein were fed with the inclusion of either 5 or 10% BDG or a BDG-yeast mixture (95%-5%). In Experiment 2, all four levels of protein were fed with and without the addition of BDG.Increasing the level of dietary protein did not influence interior quality of eggs. However, the addition of BDG or the BDG-yeast mixture resulted in a significant improvement of interior egg quality (Experiment 1) and the inclusion of BDG resulted in numerically increased interior quality in Experiment 2. In all cases, egg production was equal or numerically better with BDG in the diet.

Evaluation of Dried Brewers Grains and Yeast In Laying Hen Diets Containing Various Sulfur Amino Acid Levels

In each of two experiments, 480 individually caged White Leghorn hens received dietary treatments of 0.412, 0.470, 0.528 and 0.592% total sulfur amino acids with a concomitant increase in protein levels for a ten-month experimental period. In addition, diets containing 0.470 and 0.528% sulfur amino acids were formulated with the inclusion of one of the following—5% brewers grains, 10% brewers grains, 5% of a brewers grain-yeast mixture (95%–5%) or 10% of the mixture.Cumulative egg production was significantly improved by the addition of 5% dried brewers grains (DBG) to the diet. The inclusion of yeast in diets containing either 5 or 10% DBG resulted in significantly improved egg weights.Feed efficiency and feed consumed per hen per day were not significantly improved by the addition of DBG to any of the diets. The addition of 5% DBG plus yeast did not significantly influence final body weights, however, all other DBG treatments significantly reduced body weight when compared to the unsupplemented diets. These data indicate that the inclusion of up to 10% dried brewers grains in the diet is acceptable to the laying hen if the diet formulation is based on the nutrient composition of DBG.

Economic Use of Brewer’s Dried Grain (BDG) in the Diet of Swine

An experiment was conducted from 18th October, 2006 to 18th January, 2007 at IAAS Livestock Farm, Rampur, Chitwan to determine the substitution effects of soybean meal with brewer's dried grain (BDG) on the performance, economics and meat traits of swine production. Starter, grower and finisher diets were formulated containing 18, 16, and 14% CP respectively with 3000 Kcal/kg ME and adequately supplemented with required vitamins, minerals and amino acids. The treatments were: diet without brewer's dried grain -T1 (control diet), diet substituted with 10% brewer's dried grain-T2, diet substituted with 20% brewer's dried grain-T3, diet substituted with 30% brewer's dried grain-T4 and diet substituted with 35% brewer's dried grain-T5. Twenty weaned piglets having 7.37 to 7.94 kg live weight were housed in individual pens. Five piglets were randomly assigned to the five treatments following a randomized complete block design (RCBD) considering each individual as a replication. Fortnightly live weight, daily feed consumption, income over feed and pig cost, and different meat traits of pigs were recorded. The effect of replacing formulated diets with various level of brewer's dried grains on body weight gain was significant (p<0.01) with higher level of substitution resulting lower live-weight at the end of each of starter, grower and finisher diet period. The average body weight of piglets substituted with 35%BDG (27.00kg) and 30%BDG (39.75kg) were significantly lower (p<0.01) compared to the weight of piglets receiving 0% (65.75kg), 10% (64.25kg) and 20% (60.25kg) BDG replaced diets at the end of 3 months experimental period. A significant reduction (P<0.01) in average daily feed consumption were also recorded with increasing level of BDG in the diet. Better feed conversion ratio (FCR) was observed in T2 at early period which at finisher stage T3 diet resulted significantly better FCR which was at par with T1 and T2 diet fed group. However, T5 diet resulted the poorest feed conversion ratio of 5.26, 4.92 and 5.87 for starter, grower and finisher respectively. There was reduction in feed cost with different levels of BDG substitution in diet of pig. Highest income (in per cent) over expenditure (109.01%) was found in T2 followed by T1, T3, and T4. Lowest income over expenditure (-8.2%) was found in T5. Highest dressing percent (71.87%) was recorded in T1 and lowest (70%) in T5 diet fed group. Inclusion of 10-20% BDG seems most acceptable level of substitution of SBM. However, this result needs to be verified under farmer's management condition before recommendation.Key words: Brewer's dried grains; Swine performanceDOI: 10.3126/njst.v10i0.2820 Nepal Journal of Science and Technology Volume 10, 2009 December Page: 29-35