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Strategies for increasing nitrogen use efficiency in cattle growth phase pastures in Nellore

Grant number: 16/05131-4
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2016
Effective date (End): February 28, 2019
Field of knowledge:Agronomical Sciences - Animal Husbandry - Animal Production
Principal researcher:Gustavo Rezende Siqueira
Grantee:Verônica Aparecida Costa Mota
Home Institution: Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). Campinas , SP, Brazil
Associated scholarship(s):17/02704-6 - The effect of high crude protein diet during energy restriction and compensatory growth in cattle, BE.EP.DR

Abstract

Objective is to evaluate nutritional and management strategies that allowincrease nitrogen utilization efficiency and consequently raise the performance supplemented cattle in pastures. Two experiments will be conducted in APTA, Polo High Mogiana, Hill-SP. The treatments consist of two factors in factorial 2 x 2, as follows: Exp1 (dry phase): non-protein nitrogen source (urea and urea encapsulated) and supplementation time (7:00 and 13:00) and Exp 2 (Phase waters) true protein source (soybean meal and Soypass®) with and without plant extract (Cinnagar®). The grass will be used to Brachiaria cv. Palisade. performance and feeding behavior the owner? will be held in 20 paddocks3 ha, each with 6 animals. In addition, 4 pickets will be used for evaluation and ruminal metabolism parameters, three Latin square (3Latin squares 4X4). The areas and animals are the same in both experiments. The grazing method is the continuous stocking with variable stocking rate. Will be assessed: nutritional value of forage, weight gain, feeding behavior, food consumption and supplementation, ruminal fermentation, microbial protein production, the nitrogen use efficiency. Statistical analyzes will be performed using SAS software 9.2 (SAS, 2008).

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MOTA, Verônica Aparecida Costa. Strategies for increasing the efficiency of nitrogen use in the growing Nellore cattle in pasture. 2019. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.

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