scholarly journals Campylobacter spp. and Listeria spp. Contamination of Commercial Chickens

2021 ◽  
Vol 74 (5) ◽  
pp. 321-326
Author(s):  
Kiyomi KOBAYASHI ◽  
Yoshitsugu OCHIAI ◽  
Toshiro ARAI ◽  
Fukiko UEDA
Keyword(s):  
Commercial Chickens

scholarly journals Comparison of Selection Signatures between Korean Native and Commercial Chickens Using 600K SNP Array Data

Genes ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 824
Author(s):  
Sunghyun Cho ◽  
Prabuddha Manjula ◽  
Minjun Kim ◽  
Eunjin Cho ◽  
Dooho Lee ◽  
...  
Keyword(s):  
Snp Array ◽  
Initial Step ◽  
Reproductive Organs ◽  
High Linkage Disequilibrium ◽  
Primary Data ◽  
Multiple Traits ◽  
Indigenous Chicken ◽  
Primary Data Analysis ◽  
The Government ◽  
Commercial Chickens

Korean native chickens (KNCs) comprise an indigenous chicken breed of South Korea that was restored through a government project in the 1990s. The KNC population has not been developed well and has mostly been used to maintain purebred populations in the government research institution. We investigated the genetic features of the KNC population in a selection signal study for the efficient improvement of this breed. We used 600K single nucleotide polymorphism data sampled from 191 KNCs (NG, 38; NL, 29; NR, 52; NW, 39; and NY, 33) and 54 commercial chickens (Hy-line Brown, 10; Lohmann Brown, 10; Arbor Acres, 10; Cobb, 12; and Ross, 12). Haplotype phasing was performed using EAGLE software as the initial step for the primary data analysis. Pre-processed data were analyzed to detect selection signals using the ‘rehh’ package in R software. A few common signatures of selection were identified in KNCs. Most quantitative trait locus regions identified as candidate regions were associated with traits related to reproductive organs, eggshell characteristics, immunity, and organ development. Block patterns with high linkage disequilibrium values were observed for LPP, IGF11, LMNB2, ERBB4, GABRB2, NTM, APOO, PLOA1, CNTN1, NTSR1, DEF3, CELF1, and MEF2D genes, among regions with confirmed selection signals. NL and NW lines contained a considerable number of selective sweep regions related to broilers and layers, respectively. We recommend focusing on improving the egg and meat traits of KNC NL and NW lines, respectively, while improving multiple traits for the other lines.

scholarly journals ALV-J-contaminated commercial live vaccines induced pathogenicity in Three-Yellow chickens: one of the transmission routes of ALV-J to commercial chickens

2021 ◽  
Vol 100 (7) ◽  
pp. 101153
Author(s):  
Peikun Wang ◽  
Min Li ◽  
Haijuan Li ◽  
Yuyu Bi ◽  
Lulu Lin ◽  
...  
Keyword(s):  
Live Vaccines ◽  
Commercial Chickens

Prevalence of reoviruses in commercial chickens

1984 ◽  
Vol 61 (10) ◽  
pp. 319-322 ◽  
Author(s):  
M. D. ROBERTSON ◽  
G. E. WILCOX ◽  
F. S. B. KIBENGE
Keyword(s):  
Commercial Chickens
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