Banca de DEFESA: EDSON JOSE ALVES DE CARVALHO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : EDSON JOSE ALVES DE CARVALHO
DATE: 26/01/2026
TIME: 09:00
LOCAL: Departamento de Zootecnia
TITLE:

Nutritional evaluation and metabolizability of nutrients and energy from plant-based protein products in broiler chickens

KEY WORDS:

poultry, chemical composition, metabolizable energy, dried distillers grains, protein

PAGES: 30
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Nutrição e Alimentação Animal
SPECIALTY: Avaliação de Alimentos para Animais
SUMMARY:

Ethanol production from corn is based on starch fermentation, and the remaining grain constituents are used to produce different co-products, such as high-protein dried distillers grains (HP-DDG) and dried distillers grains with solubles (DDGS). The objective of this study was to determine the chemical and energy composition, the metabolizability coefficients of dry matter (CMMS), nitrogen (CMN), crude protein (CMPB), gross energy (CMEB), and the values of apparent metabolizable energy (AME) and nitrogen-corrected metabolizable energy (AMEn) for broiler chickens. The experiment was conducted in a completely randomized design with three treatments: a reference diet (RD) and two test diets with 30% of the RD replaced by the co-products HP-DDG and DDGS, six replicates, and six birds per experimental unit. The partial excreta collection method with Celite™ indicator at 1% was used. The following results were found for DDG and DDGS, respectively: dry matter metabolization coefficient (DMMC) of 90.7% and 89.4%, gross energy (GAE) of 82.4% and 60.7%, nitrogen (NMC) of 78.4% and 73.9%, crude protein (CPPM) of 71.00% and 42.7%, apparent metabolizable energy (AME) of 3392 kcal/kg and 3329 kcal/kg, and nitrogen-corrected metabolizable energy (AMEn) of 3241 kcal/kg and 2507 kcal/kg. These results highlight the importance of determining the nutritional evaluation based on the digestibility of nutrients and the energy of these ingredients when composing a diet, before formulating a balanced ration, ensuring better productive and economic results in poultry farming. The data analysis highlighted the relevance of these co-products in formulating broiler feed, emphasizing the need to consider the digestibility and available energy of the diets, aiming to optimize both productive performance and economic viability in poultry farming.

COMMITTEE MEMBERS:
Presidente - MARIA DO CARMO MOHAUPT MARQUES LUDKE
Interna - LILIAN FRANCISCO ARANTES DE SOUZA
Externa à Instituição - DAYANE ALBUQUERQUE DA SILVA