Banca de DEFESA: MARILIA CELESTE TAVARES FERNANDES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MARILIA CELESTE TAVARES FERNANDES
DATE: 16/02/2024
TIME: 13:00
LOCAL: Remoto
TITLE:

LEVELS OF CONCENTRATE AND SUGAR CANE IN THE DIET OF BUFFALO CALVES

KEY WORDS:

Bubalus bubalis, feed conversion, animal performance, ruminant nutrition, economic viability

PAGES: 40
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Nutrição e Alimentação Animal
SPECIALTY: Avaliação de Alimentos para Animais
SUMMARY:

Sugarcane has stood out in the feeding of ruminants as it is a low-risk crop, with a reduced dry matter production cost per unit area, maintaining its nutritional value throughout the dry period of the year and with greater availability in periods of forage scarcity and has better economic performance compared to other grasses. An alternative to improve the use of sugar cane would be to increase the level of concentrate in the diet. And with an increase in the level of concentrate, an increase in consumption and performance is expected. The objective was to evaluate the effect of increasing concentrate levels in the diet of buffalo calves fed with sugar cane. The experiment took place in the Buffalo Sector of the Animal Husbandry Department of the Federal Rural University of Pernambuco. 20 Murrah buffalo heifers with an average body weight of 115±11 kg and an average age of 8±1 months were used. The animals received food in the form of a complete diet ad libitum, which was provided twice a day at 06:00 and 18:00. The roughage used was sugar cane corrected with urea associated with different levels of concentrate (20, 40, 60 and 80%), composed of corn, soybean bran, wheat bran, urea and mineral mixture. The animals had a period of 40 days to adapt to the stalls, the management and the diet offered. After the adaptation period, the experiment lasted 84 days, which were used to collect data and evaluate the performance of the animals. The formulated diets were evaluated for economic viability, considering the local values of ingredients and labor to evaluate food costs. The data obtained were subjected to analysis of variance and regression with significance considered at P<0.05. Statistical analyzes were performed using the GLM and REG procedure of the Statistical Analysis System program (SAS, 1989). Increasing levels of concentrate in sugarcane diets for buffalo calves provided an increase in dry matter and nutrient intake, greater weight gain and improved feed conversion of the animals. Higher levels of concentrate in the diet promoted a reduction in the number and time spent on meals. Buffalo calves consumed more time during the day. The increase in concentrate levels increased the costs of the diet linearly, but the inclusion of this type of food is necessary given the advantages obtained in the parameters of weight gain, performance and feed conversion.

COMMITTEE MEMBERS:
Presidente - RICARDO ALEXANDRE SILVA PESSOA
Externo à Instituição - DORGIVAL MORAIS DE LIMA JUNIOR - UFERSA
Externa à Instituição - MARIA LUCIANA MENEZES WANDERLEY NEVES