Effectiveness of natural additive on performance, enteric methane emission, ruminal fermentation of finishing Nelore cattle

• Grant number: 22/11769-2
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: October 01, 2022
• End date: September 30, 2024
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal Investigator: Renata Helena Branco Arnandes
• Grantee: Thiago Henrique da Silva
• Host Institution: Instituto de Zootecnia. Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). Nova Odessa , SP, Brazil
• Associated research grant: 17/50339-5 - Institutional research development plan of the Animal Science Institute (PDIp), AP.PDIP

Abstract

Minimizing the control of enteric methane and increasing the efficiency of food use in ruminants is one of the main premises for sustainable beef cattle. The increase in demand for beef productivity in Brazil leads to the search for nutritional strategies for faster and more efficient animal performance. In this context, the inclusion of additives aims to modify the fermentation process in the rumen, in order to improve the use of food. This is due to the improvement of the existing symbiosis between ruminal microorganisms and their host, improving the use of nutrients presented in the feed provided and, consequently, the performance of the feed. The use of ionophore antibiotics (mainly sodium monensin) in ruminant nutrition is a technique with proven efficiency in increasing feed efficiency, focused on the growth of gram-positive bacteria, responsible for the higher concentration and butyrate, which releases more substrates for methane concentration. In addition, the use of lactic acid also inhibits the risk of lactic acid, as well as the risk of lactic acid. Normally, these nutritional and metabolic properties provide greater productive results to the animal, on the other hand, antibiotics can leave residues in animal products and cause some strains of bacteria to become resistant. Therefore, the European Union suspended the use of antibiotic products and animal feed, as well as the purchase of products from animals that received such a supplement in their diet. Therefore, alternative means of manipulation of rumen manipulation aim to increase attention to the use of special nutrients. Therefore, it is necessary to carry out studies seeking to understand the effect of food supplementation as a natural alternative to reduce the environmental impact on performance, environmental impact, intake and digestion of nutrients, as well as ruminal and enteric protection parameters. of CH4 and efficiency in the use of beef cattle under tropical conditions, increasing the sustainability of the beef production chain. (AU)