Chicken

Mixture of polysaccharide and nucleic acid extracted from Bacillus Calmette-Guerin (BCG) enhances immune response of infectious bursal disease virus vaccine in chickens

X. B. Wang, Liu, Z. J., Lv, Y. J., Long, Y., Bao, E. D., Wang, X. B., Liu, Z. J., Lv, Y. J., Long, Y., and Bao, E. D., Mixture of polysaccharide and nucleic acid extracted from Bacillus Calmette-Guerin (BCG) enhances immune response of infectious bursal disease virus vaccine in chickens, vol. 15, p. -, 2016.

In this study, the immune response induced by a mixture of polysaccharide and nucleic acid extracted from Bacillus Calmette-Guerin (BCG) was evaluated in chickens inoculated with infectious bursal disease virus (IBDV) vaccine. After the mixture was injected intramuscularly at a dose of 0.075, 0.15 or 0.3 mg·kg-1·day-1 for 3 days, the 14-day-old chickens were inoculated with the attenuated IBDV vaccine via intranasal and ocular routes.

Assessment of correlation between pre-miRNA-1757 polymorphism and chicken performance traits

H. Li, Jiang, K. R., Wang, S. H., Liu, X. J., Kang, X. T., Jiang, R. R., Li, Z. J., and Sun, G. R., Assessment of correlation between pre-miRNA-1757 polymorphism and chicken performance traits, vol. 14, pp. 12184-12195, 2015.

Single nucleotide polymorphism in microRNAs (miRNA) may influence their target gene selection and regulation efficiency, leading to animal phenotypic variation. The aim of this study was to evaluate the possible effect of single nucleotide polymorphisms in the miRNA-1757 gene precursor region (pre-mir-1757) on economic-related traits in chicken. Genotyping was performed using Sequenom MassArray® iPLEX GOLD System. Association analysis was performed using SPSS19.0.

Single nucleotide polymorphism screening, molecular characterization, and evolutionary aspects of chicken Piwi genes

H. Z. Wang, Ma, T., Chang, G. B., Wan, F., Liu, X. P., Lu, L., Xu, L., Chen, J., and Chen, G. H., Single nucleotide polymorphism screening, molecular characterization, and evolutionary aspects of chicken Piwi genes, vol. 14, pp. 14802-14810, 2015.

The P-element-induced wimpy testis (Piwi) gene is involved in germline stem cell self-renewal, meiosis, RNA silencing, and transcriptional regulation. Piwi genes are relatively well conserved in many species, but their function in poultry species is unclear. In this study, Piwi genes were sequenced using a target-sequence capture assay in quail and 28 breeds of chicken. Single nucleotide polymorphisms (SNPs) and evolutionary aspects of these chicken breeds were then analyzed.

Akirin2 expression in response to vaccine-induced immunity in chicken

C. L. Man, Mu, W. T., Chang, Y., and Zhao, D. X., Akirin2 expression in response to vaccine-induced immunity in chicken, vol. 14, pp. 17489-17495, 2015.

Akirin2 is a nuclear factor that plays an important role in the development and regulation of innate immune response. In this study, akirin2 gene expression in several primary immune organs (liver, thymus, and bursa) of Hi-Line Brown chicken administered with the LoSota vaccine was analyzed during the various stages of increase in Newcastle disease virus antibody titer. The results revealed that akirin2 expression was significantly higher in the liver (P < 0.01) and bursa (P < 0.05) of vaccinated chicken 7 and 14 days post-immunization, respectively.

Polymorphisms in GJA1 and their association with growth traits in chicken

M. Shahjahan, Liu, R. R., Zhao, G. P., Zhang, J. J., Zheng, M. Q., Li, Q. H., and Wen, J., Polymorphisms in GJA1 and their association with growth traits in chicken, vol. 14, pp. 18839-18850, 2015.

This study aimed to screen single nucleotide polymorphisms (SNPs) in the chicken gap junction protein alpha 1 (GJA1) gene, and to investigate their association with five growth traits measured in 269 chickens encompassing Chinese indigenous Beijing-You (BJY) and commercial Cobb broiler (CB) populations. Four variants were detected in the chicken GJA1 gene, in which one synonymous mutation was located in an exon (C61223231T or c.-1110 C>T), two in an intron (A61229799C or c.5460 A>C, T61229928A or c.5589 T>A) and one in the promoter (A61230599C or c.

Effects of sex and age on chicken TBC1D1 gene mRNA expression

Y. D. Peng, Xu, H. Y., Ye, F., Lan, X., Peng, X., Rustempašić, A., Yin, H. D., Zhao, X. L., Liu, Y. P., Zhu, Q., and Wang, Y., Effects of sex and age on chicken TBC1D1 gene mRNA expression, vol. 14, pp. 7704-7714, 2015.

The objective of this study was to investigate the effects of sex and slaughter age of chickens on fatty acid composition and TBC1D1 gene expression in 4 different tissues: breast muscle, thigh muscle, abdominal fat, and subcutaneous fat. Sixty Erlang mountainous chickens (hybrid SD02 x SD03) were raised under the same conditions and slaughtered at 8, 10, and 13 weeks of age.

Genome-wide association study of meat quality traits in chicken

T. Zhang, Fan, Q. C., Wang, J. Y., Zhang, G. X., Gu, Y. P., and Tang, Y., Genome-wide association study of meat quality traits in chicken, vol. 14, pp. 10452-10460, 2015.

Meat quality traits are very important in the poultry industry. To identify single nucleotide polymorphisms (SNPs) and candidate genes affecting meat quality traits, a genome-wide association study was performed using the Illumina chicken 60K SNP beadchip in Jinghai yellow chicken. Four meat quality traits were measured. Two SNPs reached 5% Bonferroni genome-wide significance (P < 1.8E-6) and 7 SNPs reached “suggestive” genome-wide significance (P < 3.59E-6) with meat quality.

Identification of single nucleotide polymorphisms in the ASB15 gene and their associations with chicken growth and carcass traits

Y. C. Wang, Jiang, R. R., Kang, X. T., Li, Z. J., Han, R. L., Geng, J., Fu, J. X., Wang, J. F., and Wu, J. P., Identification of single nucleotide polymorphisms in the ASB15 gene and their associations with chicken growth and carcass traits, vol. 14, pp. 11377-11388, 2015.

ASB15 is a member of the ankyrin repeat and suppressor of cytokine signaling box family, and is predominantly expressed in skeletal muscle. In the present study, an F2 resource population of Gushi chickens crossed with Anka broilers was used to investigate the genetic effects of the chicken ASB15 gene. Two single nucleotide polymorphisms (SNPs) (rs315759231 A>G and rs312619270 T>C) were identified in exon 7 of the ASB15 gene using forced chain reaction-restriction fragment length polymorphism and DNA sequencing.

Subscribe to Chicken