Effects of residual feed intake divergence on growth performance, carcass traits, meat quality, and blood biochemical parameters in small-sized meat ducks

被引：23

作者：

Bai, H. ^{[1
]}

Guo, Q. ^{[2
]}

Yang, B. ^{[2
]}

Dong, Z. ^{[2
]}

Li, X. ^{[2
]}

Song, Q. ^{[2
]}

Jiang, Y. ^{[2
]}

Wang, Z. ^{[2
]}

Chang, G. ^{[2
]}

Chen, G. ^{[1
,2
]}

机构：

[1] Yangzhou Univ, Inst Agr Sci & Technol Dev, Int Res Lab Agr & Agriprod Safety, Minist Educ China, Yangzhou 225009, Jiangsu, Peoples R China

[2] Yangzhou Univ, Key Lab Anim Genet & Breeding & Mol Design Jiangsu, Yangzhou 225009, Peoples R China

来源：

POULTRY SCIENCE | 2022年 / 101卷 / 09期

基金：

中国国家自然科学基金;

关键词：

small-sized meat duck; residual feed intake; production performance; correlation analysis; BODY-COMPOSITION; GENETIC-PARAMETERS; CORRELATED RESPONSES; EFFICIENCY TRAITS; FOOD-INTAKE; SELECTION; BEHAVIOR; PROGENY; PIGS;

D O I：

10.1016/j.psj.2022.101990

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Feed efficiency (FE) is a major economic trait of meat duck. This study aimed to evaluate the effects of residual feed intake (RFI) divergence on growth performance, carcass traits, meat quality, and blood biochemical parameters in small-sized meat ducks. A total of 500 healthy 21-day-old male ducks were housed in individual cages until slaughter at 63 d of age. The growth performance was determined for all the ducks. The carcass yield, meat quality, and blood bio-chemical parameters were determined for the selected 30 high-RFI (HRFI) and 30 low-RFI (LRFI) ducks. In terms of growth performance, the RFI, feed conversion ratio (FCR), and average daily feed intake (ADFI) were found to be significantly lower in the LRFI group (P < 0.01), whereas no differences were observed in the BW and body weight gain (P > 0.05). For slaughter per-formance, no differences were observed in the carcass traits between the LRFI and HRFI groups (P > 0.05). For meat quality, the shear force of breast muscle was significantly lower in the LRFI group (P < 0.05), while the other meat quality traits of breast and thigh muscles demonstrated no differences (P > 0.05). For blood bio-chemical parameters, the serum concentrations of trigly-cerides (TG) and glucose (GLU) were significantly lower in the LRFI group (P < 0.05), while the other parameters showed no differences (P > 0.05). The corre-lation analysis demonstrated a high positive correlation between RFI, FCR, and ADFI (P < 0.01). The RFI dem-onstrated a negative effect on the breast muscle and lean meat yields, but a positive effect on the shear force of breast muscle (P < 0.05). Further, the RFI demon-strated a positive effect on the TG and GLU levels (P < 0.05). These results indicate that the selection for low RFI could improve the FE of small-sized meat ducks without affecting the production performance. This study provides valuable insight into the biological pro-cesses underlying the variations in FE in small-sized meat ducks

引用

页数：9

共 56 条

[1] Genetic properties of feed efficiency parameters in meat-type chickens [J].