Banca de DEFESA: ANA CARLA RODRIGUES RIBEIRO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ANA CARLA RODRIGUES RIBEIRO
DATE: 16/09/2022
TIME: 13:30
LOCAL: IFC - Campus Concórdia
TITLE:

Sanitary and zootechnical indicators in the production of heavy broilers and their association with the occurrence of femoral head necrosis in broilers.

KEY WORDS:

broiler chicken; good production practices; sanitary challenge.

PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

Femoral head necrosis is present in most poultry farms, impacting both the field and the industry, considering some potential risk factors for the appearance of this lesion in broilers, such as sanitary challenge and low zootechnical performance. In order to quantify the appearance of femoral necrosis in heavy broilers and analyze which variables associated with the sanitary and zootechnical quality of the flocks have the greatest impact on the occurrence of this pathology, 229 broiler flocks were evaluated within a 12 month interval. The collected data were examined and submitted to a score classification from 0 to 3, according to the degree of injury presented, as follows score 0: no injury; score 1: mild unilateral or bilateral injury; score 2: severe unilateral injury; and score 3: severe bilateral injury. Next, an evaluation was performed using multivariate analysis techniques, and the group means were compared using the DSCF test, with a significance level of 5%. The variation between classes was investigated using a canonical analysis (Candisc). Total condemnation and partial condemnation due to arthritis were the categorical variables that showed interference in the femoral head necrosis lesion score with significance level (p≤0.05). The other sanitary and zootechnical indicators, when compared to different scores had no significant difference, which suggests that this interference may be related to genetic or nutritional factors, not mentioned in this study, but worthy of note and which may play an important role in the occurrence of this osteoarticular pathology.

BANKING MEMBERS:
Externo ao Programa - 2177384 - ANTONIO CARLOS PEDROSO - nullExterno à Instituição - ARLEI COLDEBELLA - EMBRAPA
Presidente - 1081425 - TEANE MILAGRES AUGUSTO GOMES