The study was conducted to investigate the effects of galactooligosaccharide (GOS) on fecal flora, blood indices and growth performance of Yanbian yellow calves. Twelve healthy newborn calves with similar birth weight were selected and randomly assigned into three groups by body weight and sex, with four heads in each group. Calves were drenched GOS at 0 (control group), 10 (low dose group, L group) and 15 g/d (high dose group, H group) from 2 to 29 days of age, respectively. Fecal samples were collected for the analysis of Escherichia coli and Bifidobacteria at 8, 15, 22 and 29 days of age; blood samples were collected for the analysis of physiological and biochemical indices at 15 and 29 days of age; birth weight and final weight were recorded. The results showed as follows: 1) Escherichia coli was the dominate flora in fecal in calves, the quantification of which steadily decreased with the calves’ growth, meanwhile, the quantification of Bifidobacteria increased and gradually became the dominate flora after 22-day-old; supplemental of GOS significantly increased the quantification of Bifidobacteria in fecal (P<0.05); 2) supplemental of GOS significantly increased the mean corpuscular hemoglobin concentration (MCHC) of calves at 29 days of age (P<0.05), but significantly decreased the number of red blood cell (RBC) (L group at 15 and 29 days of age, H group at 29 days of age, P<0.05) and the concentration of hemoglobin (HGB) in blood of calves (P<0.05); 3) the final weight and average daily gain in L group were significantly higher than those in control group (P<0.05). The results indicate that supplemental of GOS improves the balance of intestinal flora, and Bifidobacteria becomes the dominate flora in calves, increases the growth speed of calves, and the deficiency of hemopoiesis metrial becomes more serious, but the MCHC type anemia is relieved; the better level is 10 g/d under conditions in this study.［Chinese Journal of Animal Nutrition, 2011, 23（7）：1247 -1252］
WANG Zhihang,JIANG Chengzhe,CUI Mingxun,AN Shangze,WANG Yan,JIANG He,LIU Huan,LI Honglong
. Effect of Galactooligosaccharide on Fecal Flora, Blood Indices and Growth Performance of Yanbian Yellow Calves[J]. Chinese Journal of Animal Nutrition, 2011
, 23(07)
: 1247
-1252
.
DOI: 10.3969/j.issn.1006-267x.2011.07.025
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