| Full text | |
| Author(s): |
Giampietro-Ganeco, Aline
;
Fidelis, Heloisa de Almeida
;
Cavalcanti, Erika Nayara
;
Malagoli Mello, Juliana Lolli
;
Borba, Hirasilva
;
de Souza, Rodrigo Alves
;
Carvalho, Larissa Tatero
;
de Souza, Pedro Alves
;
Trindade, Marco Antonio
Total Authors: 9
|
| Document type: | Journal article |
| Source: | POULTRY SCIENCE; v. 101, n. 4, p. 5-pg., 2022-04-01. |
| Abstract | |
The increase in the consumption of poultry meat intensified production, which allowed the emergence of myopathies associated with broiler and turkey meat. The aim to examine possible quality alterations in the 240 Pectoralis major muscle (breast fillets) from carcasses of turkey breeder hens. Regarding DPM, 120 samples of breast fillets from turkey of the Nicholas strain with Pectoralis minor muscle together were selected according to the occurrence of the myopathy in the Pectoralis minor muscle (tender), as follows: DPM score 2 (n = 40), DPM score 3 (n = 40), and a control group unaffected by DPM, score 0 (n = 40). Then, different 120 samples, from the same flock of birds, were selected according to White Striping (WS) anomaly in the Pectoralis major muscle (breast fillets), considering the degree of severity of the striations apparent in the muscle, as follows: moderate (n = 40), severe (n = 40) and a control group (normal) without the presence of WS anomaly (n = 40), with set up as a completely random- ized design with 3 treatments for DPM and WS. We evaluated in meat of turkey breeder hens color, waterholding capacity (WHC), cooking loss (CL), shear force (SF), sarcomere length (SL) and total, soluble and insoluble collagen contents. The color parameters lightness (L*), redness (a*), and yellowness (b*) of turkey breeder hens breast fillets were altered by the occurrence of DPM and WS and as except CL, there were a difference for WHC and SF (P < 0.05). Significant differences were observed for sarcomere length (P < 0.05) between fillets without myopathies and with DPM Score 2 and 3 too. Higher values of total collagen (%) were observed for the most severe category of involvement for both myopathies. The DPM and WS affect the color and in a partial reduction texture of the breast fillets meat of turkey breeder hens and this may have a negative economic impact on the meat industry, because these are the main points evaluated by the consumer, in the most value commercial cut. (AU) | |
| FAPESP's process: | 18/06900-7 - QUALITY OF PECTORALIS MAJOR MUSCLE MEAT OF BROILERS AND TURKEYS BY AFFESTED DEEP PECTORAL MYOPATHY |
| Grantee: | Aline Giampietro Ganeco |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 19/09707-6 - Meat quality and muscle myopathies of broilers in multiple market segments |
| Grantee: | Aline Giampietro Ganeco |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |