Banca de DEFESA: RAYTANE CHAVES OLIVEIRA DIAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAYTANE CHAVES OLIVEIRA DIAS
DATE: 19/07/2024
TIME: 08:00
LOCAL: Vídeo Conferência
TITLE:

PERFORMANCE,  CHARACTERISTICS OF THE CARCASS AND MEAT AND FINANCIAL ANALYSIS OF THE “CHINA BEEF” AND “PREMIUM BEEF” PRODUCTION SYSTEMS

KEY WORDS:

Angus; tenderness; Nellore; quality; ruminant

PAGES: 64
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Produção Animal
SPECIALTY: Manejo de Animais
SUMMARY:

The progressive production of beef in Brazil is accompanied by increased market competitiveness. Therefore, there is a need to differentiate the meat product to be sold. Thus, the objective was to evaluate two models of production of cattle finished in confinement: “China Ox” and “Premium Meat”. Animal performance, carcass characteristics, meat characteristics and financial analysis were studied in each bovine production model. 669 cattle were used confined in 10 stalls, with the stall being the experimental unit. Two different models of bovine production were evaluated: (1) “China Ox”: entire male Nelore cattle slaughtered at 24 months of age. (2) “Premium Meat”: F1 females 50% Angus x 50% Nelore and slaughtered at 18 months of age. The two finishing systems presented the same (p>0.05) average daily gain, feed efficiency and dry matter consumption in kg/day. Dry matter intake as a percentage of body weight, confinement period and total weight gain were higher (P<0.05) for “Premium Meat”. “China Ox” had higher (P<0.05) final carcass weight, average daily gain and carcass yield, larger rib eye area and lower subcutaneous fat. Regarding meat quality, “Premium Meat” presented better marbling and meat color (p<0.05), and lower shear force. Regarding the financial aspect, “China Ox” presented lower (p<0.05) total operating costs and costs per kilo of carcass produced. However, the two production models were equal (p>0.05) for the cost of the arroba produced, total cost and net revenue, when considering the bonus for each production model. “Premium Meat” presented better meat quality (marbling, subcutaneous fat and tenderness). The production models presented the same net revenue when the bonus offered is 5% for “China Ox” and 12% for “Premium Meat”. Without bonuses, the production of “China Ox” is more economically viable.

onus offered by the industry.

COMMITTEE MEMBERS:
Externo à Instituição - LUÍS GABRIEL ALVES CIRNE - UFOPA
Externo à Instituição - PEDRO VEIGA RODRIGUES PAULINO - UFV
Interno - 1894011 - RAFAEL MEZZOMO
Interno - 1143911 - RAYLON PEREIRA MACIEL