AI Article Synopsis
- The experiment assessed the impact of JUNCAO polysaccharide peptide (JCGLPP) on the growth and gut health of Minxinan black rabbits, using four groups with varying JCGLPP supplementation over 56 days.
- Results indicated that certain groups who received JCGLPP had significantly higher live weights and specific gut health markers compared to a control group, but some fermentation parameters were not improved.
- Overall, while JCGLPP didn't enhance the rabbits' slaughter performance, it positively affected cecal fermentation and intestinal flora, suggesting potential benefits for gut health even if growth was not significantly improved.
Article Abstract
This experiment was conducted to investigate the effects of JUNCAO polysaccharide peptide (JCGLPP) on slaughter performance and intestinal health of Minxinan black rabbits, which aimed to provide the basis for the application of JCGLPP in meat rabbits. One hundred male weaned Minxinan black rabbits of (33 ± 2) d [(initial body mass (655.65 ± 25.90) g] were randomly divided into four groups with five replicates per group and five rabbits per replicate. The diets were supplemented with 0 (control group), 50 (group I), 100 (group II) and 150 mg·kg (group III) of JCGLPP, respectively. This experiment lasted for 56 days. The results are shown below: (1) The live weight before slaughter of groups I and III was significantly higher than that of control group ( < 0.05); The full net bore weight of group III was significantly higher than that of control group ( < 0.05). (2) pH value of group I was significantly higher than that of control group ( < 0.05); NH-N content in experimental groups were significantly higher than that in control group( < 0.05) while NH-N content in group I was significantly higher than that in groups III and II ( < 0.05); The content of butyric acid in group II was significantly lower than that in control group ( < 0.05); There were no significant differences in acetic acid, isovaleric acid, isobutyric acid and propionic acid in experimental groups compared with control group ( > 0.05). (3) The Occludin content in duodenum, jejunum and ileum of groups I and II was significantly higher than that of control group ( < 0.05). (4) At the phylum level, Firmicutes and Bacteroidetes were the dominant phylum in each group. At the genus level, in group II were significantly higher than those in control group ( < 0.05). In conclusion, although dietary JCGLPP supplementation could not improve slaughter performance of Minxinan black rabbits, it could improve cecal fermentation parameters and intestinal flora structure and composition of Minxinan black rabbits to a certain extent. Our results revealed that 100 mg·kg might be the optimal concentration obtained in dietary JCGLPP supplementation, which provided ideas and feasibility for drug combination.
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