Research Article

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2016 Dec 02
Animals; Avian Proteins; Body weight; Breeding; Chickens; Female; Gene expression; Gene Expression Regulation; male; Muscle development; Myostatin; Organ Specificity; Phenotype; Quantitative trait loci

Myostatin (MSTN) is expressed in the myotome and developing skeletal muscles, and acts to regulate the number of muscle fibers. Wuding chicken large body, developed muscle, high disease resistance, and tender, delicious meat, and are not selected for fast growth. Broiler chickens (Avian broiler) are selected for fast growth and have a large body size and high muscle mass. Here, 240 one-day-old ... more

L.X. Liu; T.F. Dou; Q.H. Li; H. Rong; H.Q. Tong; Z.Q. Xu; Y. Huang; D.H. Gu; X.B. Chen; C.R. Ge; J.J. Jia
2016 Dec 02
Animals; Avian Proteins; Chickens; Female; Genetic association studies; Genotype; Insulin-like growth factor I; Phenotype; Polymorphism, Single-Stranded Conformational; Quantitative trait loci; Reproduction; Selection, Genetic

The insulin-like growth factor, IGF-I, plays an important role in the development of growth and reproductive traits. Single-strand conformation polymorphism analysis was used to detect and analyze polymorphisms and expression profiles of the IGF-I gene and its association with growth and reproductive traits of Jinghai yellow chickens. A point mutation g.295T>C was detected in the IGF-I gene ... more

M.A. Abdalhag; T. Li; L. Duan; T. Zhang; G. Zhang; J. Wang; Y. Wang
2017 Jan 23
Animal Feed; Animals; Chickens; Female; Gene expression; Gene expression profiling; Meat Products; Muscles

Chicken meat quality is becoming increasingly important among breeders and consumers. To understand the effect of feeding conditions on chicken meat quality, we investigated the profiles of genes expressed in chicken breast muscle. Using RNA sequencing, we identified 336, 321, and 387 differentially expressed genes among Chengkou, Daninghe, and Qingjiaoma chickens under scatter- and captivity- ... more

G.L. Gao; C. Wang; X.Z. Zhao; H.W. Wang; Q. Li; J. Li; K.S. Zhang; H. Zhong; Q.G. Wang
2017 Feb 08
Animals; Avian Proteins; Chickens; Disease resistance; Gene expression; Immunity, Innate; Protein Interaction Domains and Motifs; Signal transduction; TNF Receptor-Associated Factor 6

Tumor necrosis factor receptor-associated factor 6 (TRAF6) is a crucial adaptor molecule of the interleukin-1 receptor/Toll-like receptor (IL-1/TLR) superfamily, which can trigger downstream signaling cascades involved in innate immunity. The function of TRAF6 has been clarified in mammals but is poorly understood in chicken. In our study, we investigated TRAF6 function in birds, particularly ... more

J. Jin; J.S. Ran; C.W. Yang; X.S. Jiang; Y.G. Zhou; Z.Q. Feng; Y. Wang; D. Lan; P. Ren; Y.P. Liu
2017 Mar 15
Amino acid sequence; Animals; Base Sequence; Chickens; Eimeria tenella; Escherichia coli; Gene expression; HSP70 Heat-Shock Proteins; Hydrophobic and Hydrophilic Interactions; Protozoan Proteins; Sequence Analysis, DNA

Members of the Eimeria genus are protozoan parasites of the subphylum Apicomplexa (Eimeriidae family), and belong to the coccidia group. Eimeria tenella is one of the most pathogenic species owing to its ability to penetrate the mucosa, and cause inflammation and damage. It is an obligate intracellular parasite that causes disease by destroying the host cells during multiplication. Heat shock ... more

A.L.G. Bogado; G.F. Martins; J.P. Sasse; daS. Guimarães; J.L. Garcia
2017 Mar 22
Animals; Biomarkers; Chickens; China; Female; Genome-wide association study; Haplotypes; Linkage disequilibrium; male; Polymorphism, Single Nucleotide; Quantitative trait loci; Quantitative Trait, Heritable; Reproduction; Selective breeding

Reproductive traits have long been studied and have an important influence on chicken breeding. To identify quantitative trait loci affecting reproductive traits, a genome-wide analysis of a Chinese chicken breed was performed to analyze age at first egg body weight at first egg, first egg weight, egg weight at the age of 300 days, egg weight at the age of 462 days, egg number at the age of ... more

Q.C. Fan; P.F. Wu; G.J. Dai; G.X. Zhang; T. Zhang; Q. Xue; H.Q. Shi; J.Y. Wang
2017 Mar 22
Abdominal fat; Animals; Body weight; Bone Density; Chickens; Core Binding Factor Alpha 1 Subunit; Femur; Genetic association studies; meat; Polymorphism, Single Nucleotide; RANK Ligand; Selection, Genetic

Intense selection for production traits has improved the genetic gain of important economic traits. However, selection for performance and carcass traits has led to the onset of locomotors problems and decreasing bone strength in broilers. Thus, genes associated with bone integrity traits have become candidates for genetic studies in order to reduce the impact of bone disorders in broilers. ... more

N.V. Grupioni; N.B. Stafuzza; A.B. Carvajal; A.M.G. Ibelli; J.O. Peixoto; M.C. Ledur; D.P. Munari
2017 Apr 20
Animals; Body weight; Chickens; Genotype; Polymorphism, Restriction Fragment Length; Quantitative Trait, Heritable; Receptors, Somatomedin

Growth traits are important economic traits in broiler chicken production. AluI and Hin1I loci are two restriction sites, which are respectively located in exons 2 and 3 of the IGF-1R gene. These two loci are significantly related to the growth traits in Jinghai Yellow chickens. In this study, a correlation analysis was performed between these two loci and the growth traits of Bian chickens. ... more

P.F. Wu; D. Wang; C.F. Jin; X.Q. Zhang; H.Q. Wu; L. Zhang; F.X. Ding; K.Z. Xie; G.X. Zhang
2017 Aug 17
alpha-Amylases; Animal Husbandry; Animals; Chickens; Diet; Dietary Supplements; Digestion; Energy metabolism; male

This study aimed to evaluate the supplementation levels of an exogenous alpha-amylase in broilers diets and compare two indicators in determining the diets energy. The experiment was divided into two parallel evaluations, being one of performance and the other of metabolism. In performance assay, 1,700 one-day-old Cobb-500 male chicks were used. The animals were distributed in 50 experimental ... more

H.B. Oliveira; M.I.A. Silva; F.R. Mesquita
2016 Dec 02
Animal Shells; Animals; Bivalvia; Breeding; Evolution, Molecular; Female; Fresh Water; Genetic variation; Genetics, Population; male; Microsatellite Repeats; Phenotype; Phylogeny; Quantitative trait loci

Four Hyriopsis cumingii populations, a breeding population (BP), a cultured population (FP), two wild populations from Poyang Lake (PY) and Dongting Lake (DT), and an H. schlegelii population were collected (JX), and the first filial generations (F1) were bred synchronously. The shell nacre polymorphisms, population genetic diversity, and genetic structures of the F1 of each population were ... more

L.M. Wu; Z.Y. Bai; X.J. Liu; C. Jin; H. Yin; J.L. Li

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