This experiment was conducted to study the effects of fermented feed without antibiotic on growth performance, intestinal flora, blood biochemical parameters and immune function of weaner piglets. A total of 120 weaner piglets with an average body weight of 9.5 kg were randomly divided into 4 treatments with 3 replicates per treatment and 10 pigs per replicate. Pigs in control group were fed a basal diet (with antibiotic), and pigs in experimental groups were fed the experimental diet with the fermented feed without antibiotic replacing the basal diet of 10%, 20% and 30%, respectively. The experiment lasted for 34 days. The results showed that compared with control group, the average daily gain in 20% fermented feed without antibiotic group was increased by 6.37% (P>0.05), and the ratio of feed to gain was decreased by 5.54% (P>0.05), and diarrhea rate was decreased by 63.63% (P<0.05). The fecal Lactobacillus number in 20% fermented feed without antibiotic group was significantly higher than that in control group at early and middle stage (P<0.05), and the fecal Escherichia coli number of fecal was significantly lower than that in control group at early and middle stage (P<0.05). The activity of alkaline phosphatase and the contents of glucose, total protein, and immunoglobulin G in serum in 20% fermented feed without antibiotic group were significantly higher than those in control group (P<0.05), while the serum urea nitrogen content was significantly lower than that in control group (P<0.05). The apparent digestibility of crude protein and crude fiber in 20% fermented feed without antibiotic group was significantly higher than that in control group (P<0.05). In conclusion, the fermented feed without antibiotic can improve the growth performance, regulate the balance of intestinal flora and enhance immune function and digestibility of weaner piglets.
HU Xinxu
,
ZHOU Yinghua
,
LIU Huizhi
,
WANG Shengping
,
GAO Shufeng
,
ZHOU Xiaoling
,
SHU Yan
,
MIU Dong
,
GUO Zhaohui
. Effects of Fermented Feed without Antibiotic on Growth Performance, Intestinal Flora, Blood Biochemical Parameters and Immune Function of Weaner Piglets[J]. Chinese Journal of Animal Nutrition, 2013
, 25(12)
: 2989
-2997
.
DOI: 10.3969/j.issn.1006-267x.2013.12.028
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