The effect of tropic fruit byproducts such as Guava, Longan, Indian gooseberry on the dairy cattle rumen microbiota was evaluated. Batch incubation was conducted under anaerobic conditions for 24 hour
Fulvic acid was added to the feed to feed laying hens, and the 16s DNA microbial sequencing technology was used to observe the changes of the cecal content of the laying hens, so as to explore the lin
