The effects of probiotics on nutrient digestibility, rumen fermentation, immune parameters and performance of early lactation dairy cows

• Grant number: 19/12499-6
• Support Opportunities: Scholarships abroad - Research Internship - Scientific Initiation
• Start date: July 06, 2019
• End date: September 08, 2019
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Production
• Principal Investigator: Ricardo Andrade Reis
• Grantee: Letícia Estéfani de Oliveira
• Supervisor: Adegbola Tolulope Adesogan
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Institution abroad: University of Florida, Gainesville (UF), United States
• Associated to the scholarship: 17/20050-3 - Methane production of Nellore steers growing phase in pastures of Brachiaria brizantha cv. Marandu submitted to different levels of nitrogen, BP.IC

Abstract

The aim of this research is to evaluate the effects of probiotic supplements on nutrient digestibility, rumen fermentation, immune parameters, and milk production of lactating dairy cows. The experiment will be a completely randomized block design with 114 Holstein lactating dairy cattle (40 DIM; minimizing inclusion of primiparous cows). Animals will be stratified by milk yield and parity and randomly assigned to following treatments: Control diets (CON), Control diet supplemented with Bovamine® Dairy, 3x109 cfu/cow daily, Control diet supplemented with Bovamine® Dairy + CHMSP, 11.8x109 cfu/cow daily. Will be evaluated to following parameters: body weight, feed intake, fecal and urine samples, milk yield, rumen fermentation and blood chemistry. (AU)