[Abstract]: [Objective] This experiment is to add different concentrations of provitamins (beneficial microecological preparations) to the feed for suckling piglets to study its performance, serum biochemical indexes and apparent digestion of feed nutrients for suckling piglets Rate of impact. [Method] In the experiment, 150 piglets of 1 day old Du Changda (DLY) were selected and randomly divided into 5 groups, namely control group (DZ), experiment 1 (SY1), experiment 2 (SY2), and experiment 3. Group (SY3) and Test Group 4 (SY4), each group of teaching trough materials were added with provitamin solution 5ml/kg, 10ml/kg, 15ml/kg, 20ml/kg, 3 replicates in each group, each replicate 10 head. [Results] The weaning weight of SY2 during the 28 days of the trial period was 9.57kg, the average daily gain was 283.57g, the average feed intake was 1113.63g, and the average feed-to-meat ratio was 0.18, which was the best production result in this trial (P0.05) ); The control difference between SY2, SY3 and SY4 group was not significant (P>0.05). The difference between SY2 and DZ group was extremely significant (P0.05). In the determination of microbial activity, the activity of lactic acid bacteria and yeast SY2 group was significantly higher than the control group (P
正在翻译中..