Abstract
The aim was to evaluate the performance, blood lipid profile, and the relative expression of growth-related genes in purebred white and brown quail lines and their crossbred lines. A total of 240 one-day-old Japanese quail chicks of white and brown line, their crossbred line (WBQ: male white × female brown), and reciprocal crossbred line (BWQ: male brown × female white) were divided into four equal groups (60 birds each). The white quail line showed significantly higher final body weight, daily gain, and feed intake compared with the other quail lines (p < 0.001). Meanwhile, both crossbred quail lines (WBQ and BWQ) showed significantly lower FCR compared with both purebred quail lines (p = 0.001). Both crossbred quail lines showed greater dressing percentages compared with both purebred quail lines (p = 0.038). The brown quail line showed significantly (p = 0.05) higher levels of serum triglycerides and VLDL compared with the white and BWQ lines. The WBQ crossbred line exhibited significantly higher mRNA expression of GHR and IGF-1 genes compared with other quail lines (p < 0.001). Both crossbred lines (WBQ and BWQ) exhibited negative heterosis percentages for body weight (−4.39 and −3.90%, respectively) and feed intake (−10.87 and −14.59%, respectively). Meanwhile, heterosis percentages for FCR (−6.46 and −9.25%, respectively) and dressing percentage (7.54 and 6.38%, respectively) were improved in both crossbred lines. The WBQ line showed high heterosis percentages for the expression of GHR and IGF-1 genes (52.28 and 88.81%, respectively). In conclusion, the WBQ line exhibited significantly greater dressing percentage and better FCR, as well as higher mRNA expression of GHR and IGF-1 genes. These results may be helpful to improve breeding programs and to develop commercial lines of meat-type Japanese quail.
Subject
General Veterinary,Animal Science and Zoology
Reference51 articles.
1. Effects of selection for four week body weight on slaughter, carcass, and abdominal fat and some organ weights and blood serum parameters in Japanese quail;Türkmut;Turk. J. Vet. Anim. Sci.,1999
2. Growth, Feed Consumption and Carcass Composition of Coturnix japonica, Coturnix ypsilophorus and their Reciprocal Crosses
3. Estimation of genetic parameters for body weight and egg weight traits in Japanese quails;Özsoy;Trends Anim. Vet. Sci.,2011
4. Sexual dimorphism on carcass characteristics of Japanese quail (Coturnix Coturnix japonica) reared in derived Savanna zone of Nigeria;Ojedapo;Int. J. Environ. Sci. Technol.,2014
5. Genetic Parameters from Univariate and Bivariate Analyses of Egg and Weight Traits in Japanese Quail
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献