Banca de DEFESA: JOSÉ FRANCISCO DA SILVA NETO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JOSÉ FRANCISCO DA SILVA NETO
DATE: 31/10/2022
TIME: 08:00
LOCAL: Departamento de Zootecnia
TITLE:

QUALITY OF MEAT FROM LAMBS FED WITH LIPID SOURCES ASSOCIATED WITH SPINELESS CACTUS

KEY WORDS:

sheep meat; cotton seed; extra-fat corn germ; quality; spineless cactus; coconut pie

PAGES: 38
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Nutrição e Alimentação Animal
SPECIALTY: Avaliação de Alimentos para Animais
SUMMARY:

The objective of this study was to evaluate the effects of different lipid sources associated with spineless cactus on carcass characteristics and meat quality of 39 castrated sheep, initially weighing 21.58±1.43Kg and confined for 120 days (60 days of the period experimental). The treatments consisted of Tifton-85 grass hay, Palma Orelha de Elefante Mexicana, ground corn, soybean meal, and the oilseed source: extra-fat corn germ, cottonseed, and/or coconut cake, composing each experimental diet. The experimental design was completely randomized, with three treatments and thirteen replications, slaughtered after 120 days of confinement. The carcasses were cooled at 4ºC for 24 hours; then, carcass evaluations were performed. The left leg was used for tissue composition and, after dissection, the physicochemical analysis of the Longissimus lumborum was performed, followed by sensory analysis. There was no effect of lipid addition on weight gain, slaughter weight, or initial and final carcass pH. However, an influence was observed on dry matter intake. Already between tissue deposition, there was interaction about adipose tissue in animals fed with extra-fat corn germ. Regarding the physical chemistry of the meat, no influence of the lipid addition was observed for pH, L*, a*, b*, cooking loss, and shear force (5.64, 45.71, 14.38, 6 .61, 6.35, 0.9, respectively). And in the sensory analysis, there was no interaction between the lipid sources. Thus, the inclusion of lipid sources (cottonseed, extra-fat corn germ, and coconut pie) can be recommended in the diet of lambs because it does not influence the carcass's characteristics or the meat's quality.

BANKING MEMBERS:
Presidente - EVARISTO JORGE OLIVEIRA DE SOUZA
Interna - ANTONIA SHERLANEA CHAVES VERAS
Externo à Instituição - MICHEL DO VALE MACIEL - UFAM