Evaluation Of Energy Value Of Wheat And Its Processed Products On Broilers

In this study,wheat and its processed products were used as raw materials,and the metabolic energy of broiler chickens was evaluated using the nested algorithm to compare the changes in the metabolic energy of raw materials between the 2nd week and the 4th week of age.The results were compared with some of the previous results.Data difference reason.The trial used 672 AA male broiler chickens on day 1 and fed commercial diets during the non-test period.At the age of 6 days,all the broilers were re-randomly divided into seven treatments of A,B,C,D,X,Y,and Z according to their weight(8 replicates per treatment,12 chickens per replicate).In the dietary basal diet control group,group B was fed the experimental group consisting of 70% basal diet and 30% wheat,and group C was fed diet consisting of 80% basal diet and 20% wheat bran.The experimental group of diets,group D,was fed a test group consisting of 70% of the basal diet and 30% of sub-powder,and X was a diet consisting of 70% of the basal diet and 30% of wheat DDGS.For the grain test group,Y is a test group consisting of 70% of the basal diet and 20% of brewer's dregs.The pre-fed experimental diet was started at 7:00 a.m.and 21 days of age.The feeding period is three days.10-14 days of age and 27-28 days of age are the official trial period.Group Z was a hunger-swallow metabolizing group.Commercial diets were fed during the non-experimental period.After 11-and 25-day inoculation at 9:00 a.m.for 24 h,new fecal disks were collected and fecal samples were collected for 48 h to determine endogenous energy.The amount of excretion.At the age of 2 weeks,the average apparent metabolisable energy(AME)of wheat,bran,sub-powder,wheat DDGS,and brewer's grains was determined to be 14.49 MJ/kg,7.12 MJ/kg,12.09 MJ/kg,and 10.64 MJ/kg.5.69 MJ/kg;mean corrected metabolic energy(AMEn)of nitrogen was 13.19 MJ/kg,7.03 MJ/kg,11.03 MJ/kg,9.77 MJ/kg,4.65 MJ/kg;mean metabolic energy(TME)The values were 15.04 MJ/kg,7.31 MJ/kg,12.50 MJ/kg,11.18 MJ/kg,6.15 MJ/kg;the nitrogen corrected true metabolic energy(TMEn)was 13.36 MJ/kg,7.09 MJ/kg,11.38 MJ/kg,10.08 MJ/kg,5.03 MJ/kg;At the age of 4 weeks,the average AME of wheat,bran,sub-powder,wheat DDGS and brewer's grains was determined to be 14.65 MJ/kg and 7.56 MJ/kg.,12.27 MJ/kg,13.63 MJ/kg,10.84 MJ/kg;mean corrected metabolic energy(AMEn)was 13.31 MJ/kg,7.43 MJ/kg,11.34 MJ/kg,12.75 MJ/kg,9.71 MJ /kg;Mean metabolic energy(TME)averaged 15.18 MJ/kg,7.70 MJ/kg,13.19 MJ/kg,13.90 MJ/kg,11.97 MJ/kg;nitrogen corrected true metabolic energy(TMEn)13.56 MJ/kg,7.28 MJ/kg,10.56 MJ/kg,12.93 MJ/kg,10.56 MJ/kg.According to the data,the metabolizable energy of wheat,sub-powder,and wheat DDGS is higher than that of bran and brewer's grains.The metabolic energy of feed at the 4th week old AA broiler chicken is higher than that at the 2nd week...