Performance and microbiota of the digestive tract of Nellore calves supplemented with fungi isolated from bovine rumen.

Background And Aim: In tropical semiarid regions, supplementation with fungi could contribute to rumen modulation, promoting greater production of fibrolytic enzymes and degradation of forage. The objective of this study was to analyze the effect of supplementation with fungi, isolated from the bovine rumen, on the performance and microbiota of the digestive tract of Nellore calves.

Materials And Methods: The experiment was conducted in randomized blocks evaluating eight Nellore calves that were daily supplemented with isolates of and , along with eight calves that were not supplemented.

Anthelmintic efficacy of trichlorfon and blood parameters of young lambs infected with Haemonchus contortus.

In this study we evaluated the efficacy of trichlorfon against Haemonchus contortus, monitoring its influence on blood parameters and plasma enzymes of lambs with haemonchosis. A lamb group was orally treated with trichlorfon at 100 mg kg while the other group was untreated. Split-plot design analysis was performed with the lamb groups defined as plots while the subplots were the four periods (weeks) of collection.