Correlations between Breast Yield and Morphometric Traits in Broiler Pure Lines
BRAZILIAN JOURNAL OF POULTRY SCIENCE, vol.22, no.1, pp.1-8, 2020 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 22 Issue: 1
- Publication Date: 2020
- Doi Number: 10.1590/1806-9061-2019-1148
- Journal Name: BRAZILIAN JOURNAL OF POULTRY SCIENCE
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, Veterinary Science Database, Directory of Open Access Journals
- Page Numbers: pp.1-8
- Keywords: Breast index, breast length, breast width, broiler, pure-lines, FED REPRESENTATIVE 1957, ABDOMINAL FAT, COMPUTERIZED-TOMOGRAPHY, BODY-COMPOSITION, FREE-RANGE, MUSCLE, SELECTION, CHICKENS, TOOL, AGE
- Open Archive Collection: AVESIS Open Access Collection
- Ondokuz Mayıs University Affiliated: Yes
Abstract
Broiler pure lines are valuable breeding species and morphometric traits are advantageous for the selection of breast yield since they could be applied practically and without any negative impact on welfare. In this study, live weight (LW), carcass weight and ratio (CW and CR), breast weight and ratio (BW and BR), abdominal fat weight and ratio (AFW and AFR), morphometric traits such as breast width, length and index (BWD, BL and BI) were investigated in broiler pure lines. The research material consisted of 3 dam (A1, A2 and A3) and 2 sire (B1, B2) pure lines of 42 days of age. LW, CW, BW, AFW, AFR, BR, BL, BWD and BI values were different between the two lines (p<0.05). LW, CW, BW and BI were higher in sire lines. The relationship between breast weight and index were also higher in sire and dam lines than the relationships between breast width and length separately (in sire lines: BWD: 0.73; BL: 0.79; BI: 0.79, in dam lines: BWD: 0.79; BL: 0.74; BI: 0.84). In addition, high r(2) values were determined in regression equations for BW estimation in dam and sire lines (0.836 and 0.857, respectively). Because of the significant correlations between breast yield and its morphometric traits, it is seen that more feasible, ease of measurement, protection of breeding resources and welfare. It is thought that the use of breast index which shows a higher correlation compared to these traits will increase selection efficiency instead of using breast width and length separately.