Banca de DEFESA: TATIANE AMARAL DE BARROS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : TATIANE AMARAL DE BARROS
DATE: 30/01/2026
TIME: 09:00
LOCAL: Departamento de Zootecnia
TITLE:

Nutritional and Energy Assessment of Unconventional Plant-Based Energy Ingredients for Broiler Chickens

KEY WORDS:

Metabolizable coefficient, chemical composition, metabolizable energy, nutrients.

PAGES: 28
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Nutrição e Alimentação Animal
SPECIALTY: Avaliação de Alimentos para Animais
SUMMARY:

The increasing demand for corn substitutes in broiler chicken feed has driven research into alternative ingredients, such as wheat and triticale, due to their nutritional characteristics. This study aimed to evaluate the nutritional and energy composition of barley, millet, sorghum from the Northeast and Southeast regions of Brazil, wheat, and triticale grains in broiler chickens. Three hundred and forty-two male Ross 308 AP chicks, 11 with an average weight of 492g at 14 days of age, were used in a completely randomized design with three treatments and six replicates. The birds received a reference diet and six experimental diets, with 30% of the diet replaced by ground grains. Excreta were collected twice daily for three days, after a five-day adaptation period to the diets and facilities. Laboratory analyses were performed to determine dry matter (DM), crude protein (CP), mineral matter (MM), gross energy (GE), ether extract (EE), and added carbohydrates (ICA), following standard methodology. Metabolism was evaluated using the partial excreta collection method with the indigestible indicator Celite™ to calculate the metabolization coefficients of dry matter, crude protein, gross energy, metabolizable energy, and nitrogen-adjusted metabolizable energy (AMEn). The result expressed on a dry matter basis for AMEn was 3404±58 kcal/kg for wheat and 3334±84 kcal/kg for triticale, demonstrating a higher value in wheat. The bromatological composition expressed on a dry matter basis resulted in crude protein values of 14.8% in wheat and 15.9% in triticale, and crude fiber values of 2.8% and 2.2%, respectively. The data suggest that wheat has a higher energy value compared to triticale. The evaluated ingredients have potential as ingredients in broiler chicken feed formulations.

COMMITTEE MEMBERS:
Presidente - MARIA DO CARMO MOHAUPT MARQUES LUDKE
Interna - CAMILLA MENDONCA SILVA
Externo à Instituição - CLAUDSON OLIVEIRA BRITO - UFS