Changes in Serum Metabolites and Growth Characteristics of Korean Native Steers Fed Alcohol-fermented Feeds

Abstract

This study was carried out to assess whether feeding of alcohol-fermented feeds (AFF) affects the nutritional metabolism and growth characteristics of Korean native steers. Ten steers were randomly assigned to one of two treatment groups. The dietary treatments were AFF (50% commercial beef cattle feed+30% alcohol-fermented soybean curd dregs+20% rice straw) and control (80% commercial beef cattle feed+20% rice straw). The change of serum metabolites and growth characteristics were measured every two months during the whole twelve months experimental period and the relationships between serum metabolites and growth characteristics were simultaneously analyzed. Four hours after feeding AFF, serum alcohol concentration reached its peak with a significantly higher value than that after control feeding (11.9 and 4.9 mg/dl, respectively). Serum glucose and inorganic phosphorus (IP) concentrations (63.1 and 8.4 mg/dl, respectively) of steers fed AFF were higher than those (56.6 and 7.0 mg/dl) fed the control diet. In both treatments, the serum glucose concentration rapidly increased when body weight (BW) of the steer reached about 600kg, while IP concentrations were rapidly diminished at that BW. Lower concentrations of both blood urea nitrogen (BUN) and cholesterol were observed in steers fed AFF up to 450 kg of BW. The IP concentration was correlated with concentrations of BUN, cholesterol and glucose in AFF fed cattle but not in the cattle fed control diets. Average daily gain was higher in steers fed AFF than steers fed control, particularly during the growing stage of cattle. These findings indicated a capability of AFF to improve BW gain of Korean native steers by decreased protein degradation as well as increased fat synthesis.

Rumen fermentation and performance of Hanwoo steers fed total mixed ration with Korean rice wine residue

“…Hanwoo steers fed with 10 % RWR had higher total weight gain, ADG and FE, which means replacement of RWR increased its growth performance. This result was in concordance with Lin et al [ 18 ] data observed when they fed the steers with alcohol-fermented feed diet at growing stage. The steers grew significantly ( P < 0.05) faster than those fed the control diet.…”

“…In the present study, the creatinine concentration in calves fed the basal diet alone was below the normal range. Lin et al [ 18 ] reported that providing alcohol-fermented feed to ruminants increased the propionate, triglyceride, cholesterol and glucose concentrations in the blood with increasing weight gain. The findings of this experiment did not differ with regard to LDL concentrations among the control and treatment groups.…”

Growth performance and blood profiles of Hanwoo steers at fattening stage fed Korean rice wine residue

“…Moreover, Radostits et al [53] and Smith [54] reported that the cattle blood serum creatinine concentration of up to 1.5 mg/dL is considered normal. Providing alcohol-fermented feed to ruminants increased triglyceride, glucose, and cholesterol concentrations in the blood, and this increased the weight gain [33]. Body fat is correlated with HDL and LDL concentrations; as body weight or fat increases, the HDL and LDL concentrations also increase [46].…”

“…Yan [31] reported the beneficial effects of ethanol in improving the marbling score of Korean native steers. Furthermore, Lin [32] reported that the production of total volatile acids in the rumen increased whereas that of propionate decreased with the supplementation of alcohol-supplemented feed; this may improve body weight gain in Korean native steers through decreased protein degradation and increased fat synthesis [33]. Firkins et al [34] fed animals WDG in the diet (50%) and observed a significant increase in the daily gain.…”

Effect of soy lecithin on total cholesterol content, fatty acid composition and carcass characteristics in the Longissimus dorsi of Hanwoo steers (Korean native cattle)

“…In our laboratory, we carried out a series of AFF feeding experiments with Hanwoo (Korean native cattle) steers, and previous research in our laboratory has shown AFF's capability to improve body weight gain and meat quality (Shin ; Lin ; Lin et al . ). Thus, we used commercial concentrate and AFF as the basic diet in the present study according to the daily nutrient requirements of the Korean Feeding Standard for Korean Cattle (Ministry for Food, Agriculture, Forestry and Fisheries (MAFF) ).…”