Chemical composition of corn steep liquor precipitated with tannin and its effect on trait performance and health of Holstein dairy calves

The aim of this study was to investigate the chemical composition of corn steep liquor precipitated with tannins (CSLP) and its effects on trait performance and health condition of Holstein  calves as a new protein source in milk replacer (MR). A total of 60 Holstein dairy calves (n=20 calves per treatment: 10 males and 10 females) were randomly assigned to the one of the three treatments, including: 1) control group, 2) MR+2% CSLP and 3) MR+4% CSLP. The experimental results showed significant difference on percentage of amino acid profiles in CSLP and MR (except serine, Histidine, Glycine and Tyrosine) (P<0.05). The percentage of crude protein CSLP (26.56%) was significantly higher than MR (22%). The performance traits of calves were not affected by the experimental treatments. Feeding MR+2% CSLP led to a significant reduction of Escherichia coli in fecal on day 28. The use of CSLP had no negative effect on the fecal consistency score of calves from 0 to 56 days of ages (P<0.05). In conclusion, feeding of CSLP as a protein source in MR had no negative effect on trait performance and health of dairy calves