Efficacy of Different Levels of Dried Distiller's Grainswith Solubles as a Replacement for Soybean Meal and Portion of the Corn in a Growing and Finishing Baffalo Calves Diet

Abstract

ighty growing buffalo calves, 14-16 months old, with an average weight of 202 kg, were divided, randomly, into four equal experimental groups, (20 calves each), and used to investigate the effect of replacing 0%, 10%, 20% and 30% of soybean and yellow corn by dried distiller's grains with soluble (DDGS) in total mixed rations (TMR) (1,2,3 and 4, respectively). The experimental diets were nearly similar in crude protein (CP) (iso-nitrogenous) and total digestible nutrients (TDN) (iso-caloric). All animals were fed daily 3% of live body weight and the trial lasted for 180 days. Metabolism trials were carried out on three mature rams for each TMR to estimate nutrient digestibilities, nutritive values and nitrogen balance. The economic efficiency was also calculated. Significantly lower values of live body weight and daily gain were recorded for calves fed the control diet (TMRI). Significantly best values were achieved by calves fed the 30% followed by 20% dietary DDGS instead of soybean meal and yellow corn. Results of digestibility trials indicated that rams fed the control diet (TMRI) had significantly (P<0.05) lower digestibility coefficients, nutritive values and nitrogen utilization compared with other diets. No significant differences were observed (P<0.05) among the experimental groups in ruminal pH and the obtained values were within the normal ranges (6.70-6.84). Ammonia-N concentration was greater in control diet but, there was a linear decrease in ammonia-N concentration as the level of DDGS increased in the diets. Supplemented rations with DDGS showed significant increase in the level of TVFA's. Increasing level of DDGS in diets of calves' increased TP concentrations, being the lowest in TMRI (control), while albumin and globulin recorded insignificant differences among all diets. The values of AST were higher significantly (P<0.05) in rations containing DDGS than that of control. Values of serum-creatinine and cholesterol were not affected by dietary treatments. Blood parameters studied indicated normal physiological and healthy status of all experimental calves. Total body gain and daily gain were increased quadratically (P<0.05) with increasing DDGS replacement. Calves fed diets containing 20% or 30% DDGS recorded the best feed conversion values followed by 20% DDGS. It may be concluded that inclusion of DDGS with a rate of 30% from soybean meal and yellow corn in buffalo calves diet result in better net revenue, economical efficiency and feed cost per kg daily gain.

Effect of Using Dried Distiller Grains with Soluble (Ddgs) as a New Protein Source on Meat and Milk Production and their Qualities: 1- Using Dried Distiller Grains with Soluble (DDGS) Instead of Cotton Seed Cake or Soybean Meal Cake in Rations of Lactating Friesian Cows

“…Increasing feed intake of animals fed ration containing DDGS (ration D) might be attributed not only higher digestibility coefficients of all nutrients of these ration, but also higher it's feeding values such as TDN, DCP, DE and ME (table 3). These results were agreement with those reported by Etman et al (2011& 2014 and El-Shinnawy et al (2015).…”

“…On the other hand, feed utilization as kg TDN/ kg actual or 4% FCM yield found to be most efficient for animals fed ration C (containing soybean meal) with no significant difference, while feed efficiency as Kg DCP/ Kg actual or 4% FCM yield was almost equal among different experimental groups without significant differences. Better feed efficiency with animals fed ration containing DDGS was reported by Etman et al (2014) and El-Shinnawy et al (2015).Generally, using DDGS in rations tended to increase milk yield and improve feed utilization efficiency.…”

Effect of Using Dried Distiller Grains With Soluble (Ddgs) as a New Protein Source on Meat and Milk Production and Their Qualities. 2- Comparative Studies to Use Dried Distiller Grains With Soluble (Ddgs) Instead of Cotton Seed or Soybean Meals as a Source of Protein in Ration of Fattening Friesian Calves.

“…Moreover, Leupp et. al., (2009) observed that increasing and improving of digestibility coefficients and nutritive values of ration containing DDGS might be attributed to higher availability of nutrient contents of DDGS.Generally, ration D(containing DDGS) appeared to have higher nutrient digestibility coefficients and feeding value than the other rations as reported by El-Shinnawy et. al.,(2015).…”

“…Generally, the better feed efficiency with animals fed ration D (containing DDGs) was agreement with those reported by Etman et. al., (2014aand 2018) and El-Shinnawy et. al.…”

“…al., (2014) showed higher daily gain of growing lambs with using 30% DDGS in ration of sheep. In this respect, El-Shinnawy et. al., (2015) found that the protein replacement (10, T 20 and 30%) of soya bean meal and yellow corn by DDGs increased DM intake, digestion coefficient and daily gain and improved economic efficiency with growing buffalo calves.…”