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You searched for: Subject "White Leghorn" Remove constraint Subject: "White Leghorn"
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1. White Leghorn and Red Junglefowl female chicks use distal and local cues similarly, but differ in persistency behaviors, during a spatial orientation task

Author:
Vitor Hugo Bessa Ferreira; Vanessa Guesdon; Ludovic Calandreau; Per Jensen
Source:
Behavioural processes 2022 v.200 pp. 104669
ISSN:
0376-6357
Subject:
White Leghorn,   etc   ; Gallus gallus; ancestry; domestication; females; memory;     Show all 6 Subjects
Abstract:
... Although there is evidence to suggest that animal domestication acts as a modulator of spatial orientation, little is known on how domesticated animals, compared to their wild counterparts, orientate themselves when confronted to different environmental cues. Here, using domesticated White Leghorn chicks, and their ancestor, the Red Junglefowl (Gallus gallus), our main objective was to investigate ...
DOI:
10.1016/j.beproc.2022.104669

2. Research Note: Heterosis for egg production and oviposition pattern in reciprocal crossbreeds of indigenous and elite laying chickens

Author:
Yuanmei Wang; Yanyan Sun; Aixin Ni; Yunlei Li; Jingwei Yuan; Hui Ma; Panlin Wang; Lei Shi; Yunhe Zong; Jinmeng Zhao; Shixiong Bian; Jilan Chen
Source:
Poultry science 2022 pp. 102201
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; chickens; egg production; egg weight; eggs; heterosis; oviposition; purebreds;     Show all 8 Subjects
Abstract:
... Heterosis has been widely utilized in chicken breeding to improve economically important traits. However, few studies focused on revealing the factors contributing to egg production heterosis. In this study, White Leghorn and Beijing-You chickens were used as parental breeds to generate purebreds (WW, YY) and reciprocal crossbreeds (WY, YW) to characterize heterosis for egg production traits inclu ...
DOI:
10.1016/j.psj.2022.102201

3. Nondestructive characterization gender of chicken eggs by odor using SPME/GC-MS coupled with chemometrics

Author:
Xiao-le Xiang; Gan Hu; Yong-guo Jin; Guo-feng Jin; Mei-hu Ma
Source:
Poultry science 2022 v.101 no.3 pp. 101619
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; biosynthesis; chemometrics; chickens; eggs; females; males; odors; steroid hormones;     Show all 9 Subjects
Abstract:
... It's a difficult task for researchers to identify the gender of chicken eggs by nondestructive approach in the early of incubation, which not only could reduce the cost of incubation, but also could improve the welfare of chicks. Therefore, SPME/GC-MS has been applied to investigate its potential as a nondestructive tool for characterizing the differences of odor between male and female chicken eg ...
DOI:
10.1016/j.psj.2021.101619

4. Evaluation of the precision-fed rooster assay for detecting effects of supplemental enzymes on metabolizable energy

Author:
A.G. Anderson; P.L. Utterback; C.M. Parsons
Source:
Poultry science 2022 v.101 no.2 pp. 101603
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; barley; corn; excreta; metabolizable energy; roosters; rye; soybean meal; xylanases;     Show all 9 Subjects
Abstract:
... The precision-fed rooster assay has been used extensively to determine nitrogen-corrected true metabolizable energy (TMEₙ) of feed ingredients for poultry. However, this assay has not generally been used to evaluate effects of supplemental enzymes for this purpose. Therefore, 2 precision-fed rooster assays were conducted to evaluate several different carbohydrase enzymes on TMEₙ for a corn/soybean ...
DOI:
10.1016/j.psj.2021.101603

5. A Deletion Upstream of SOX10 Causes Light Yellow Plumage Colour in Chicken

Author:
Tao Zhu; Mengchao Liu; Shan Peng; Xinye Zhang; Yu Chen; Xueze Lv; Weifang Yang; Kaiyang Li; Jianwei Zhang; Huie Wang; Haiying Li; Zhonghua Ning; Liang Wang; Lujiang Qu
Source:
Genes 2022 v.13 no.2 pp. -
ISSN:
2073-4425
Subject:
White Leghorn,   etc   ; Rhode Island Red; alleles; chickens; color; mutation; phenotype; plumage; silver;     Show all 9 Subjects
Abstract:
... Chicken plumage colour is a complex trait controlled by many genes. Herein, through Rhode Island Red (RIR) and White Leghorn (WL) F1 cross populations, the segregation of plumage color was observed in females, showing white in males, and dark red (DR) and light yellow (LY) in females. The white has been found to be caused by dominant white alleles (I) and the DR phenotype is attributed to a sex-li ...
DOI:
10.3390/genes13020327

6. Mathematical modeling for egg production and egg weight curves in a synthetic white leghorn

Author:
Mohammad Aziz Sharifi; Chandrashekhar Santosh Patil; Abhay Singh Yadav; Yogesh Chandrakant Bangar
Source:
Poultry science 2022 v.101 no.4 pp. 101766
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; Bayesian theory; animal genetics; chi-square distribution; egg production; egg weight; India;     Show all 7 Subjects
Abstract:
... This study was conducted to evaluate 8 mathematical models, namely, Logistic (LM), Morgqan Mercer Flodin (MMF), Polynomial Fit (PF), Rational Function (RF), Sinusoidal Fit (SF), Quadratic fit (QF), Gompertz function (GF), and Modification Compartmental Model (MCM) fitted to weekly egg production and egg weight of synthetic White Leghorn (SWL) population 21 to 40 wk of age of 5 generations (2015-16 ...
DOI:
10.1016/j.psj.2022.101766

7. Profiling and analysis of exosomal miRNAs derived from highly pathogenic avian influenza virus H5N1-infected White Leghorn chickens

Author:
Yeojin Hong; Anh Duc Truong; Thi Hao Vu; Sooyeon Lee; Jubi Heo; Suyeon Kang; Hyun S. Lillehoj; Yeong Ho Hong
Source:
Poultry science 2022 v.101 no.11 pp. 102123
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; Influenza A virus; algorithms; blood serum; chickens; exosomes; gene expression; gene ontology; microRNA; vaccines;     Show all 10 Subjects
Abstract:
... Exosomes are small cell membrane-derived vesicles; they play important roles as mediators of cell-to-cell communication via delivery of their contents, such as proteins and microRNAs (miRNAs). In particular, exosomal miRNAs regulate the gene expression of recipient cells by inhibiting the expression of target mRNAs. In this study, we investigated the miRNA expression profiles of highly pathogenic ...
DOI:
10.1016/j.psj.2022.102123

8. Using egg production longitudinal recording to study the genetic background of resilience in purebred and crossbred laying hens

Author:
Nicolas Bedere; Tom V. L. Berghof; Katrijn Peeters; Marie-Hélène Pinard-van der Laan; Jeroen Visscher; Ingrid David; Han A. Mulder
Source:
Genetics, selection, evolution 2022 v.54 no.1 pp. 26
ISSN:
1297-9686
Subject:
White Leghorn,   etc   ; autocorrelation; crossbreds; egg production; farms; genetic background; genetic improvement; genetic selection; purebreds; sires; variance; Rhode Island;     Show all 12 Subjects
Abstract:
... BACKGROUND: There is growing interest in using genetic selection to obtain more resilient farm animals (i.e. that are minimally affected by disturbances or rapidly recover from them). The aims of this study were to: (i) estimate the genetic parameters of resilience indicator traits based on egg production data, (ii) assess whether these traits are genetically correlated in purebreds and crossbreds ...
DOI:
10.1186/s12711-022-00716-8

9. Dietary inclusion of Moringa oleifera leaf meal with enzyme supplementation on egg production and egg quality of laying hens

Author:
P. Rajesh; N. Nalini Kumari; D. Nagalakshmi; M.H. Rao; Srinivas Gurram
Source:
Indian journal of animal nutrition 2022 v.39 no.1 pp. 88-96
ISSN:
2231-6744
Subject:
White Leghorn,   etc   ; Moringa oleifera; color; diet; egg production; egg weight; eggs; enzymes; feed conversion; feed intake; feed prices; leaves;     Show all 12 Subjects
Abstract:
... The objective of the study was to evaluate the effect of Moringa oleifera leaf meal (MOLM) on production performance of layers. Two hundred, 34-week-old BV 300 White Leghorn layer birds were randomly allotted to 50 replicates with 4 birds in each replicate and these replicates were in turn allotted to 5 dietary groups.T1 (Control: Corn-soybean meal Basal diet (BD); T2: 5% MOLM in BD diet without e ...
DOI:
10.5958/2231-6744.2022.00012.3

10. Effect of housing environment and hen strain on egg production and egg quality as well as cloacal and eggshell microbiology in laying hens

Author:
Milan K. Sharma; Christopher D. McDaniel; Aaron S. Kiess; Robert E. Loar; Pratima Adhikari
Source:
Poultry science 2022 v.101 no.2 pp. 101595
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; anaerobes; bacterial contamination; cloaca; egg production; egg shell; egg shell quality; feed conversion; feed intake; food safety;     Show all 10 Subjects
Abstract:
... This study was conducted to determine the effect of housing environment and laying hen strain on performance, egg quality, and microbiology of the cloaca and eggshell. A total of 1,152 Hy-Line Brown (HB) and Hy-Line W-36 White Leghorn (W-36) hens were used. All hens were kept in conventional cages (CC) from 18 to 32 wk of age and then moved to either enriched colony cages (EC) or free-range (FR) p ...
DOI:
10.1016/j.psj.2021.101595

11. Distribution of Infectious Bronchitis Virus Resistance in a Naïve Chicken Population

Author:
Olivia Lockyear; Cassandra Breedlove; Kellye Joiner; Haroldo Toro
Source:
Avian diseases 2022 v.66 no.1 pp. 101-105
ISSN:
0005-2086
Subject:
White Leghorn,   etc   ; Gallus gallus; Infectious bronchitis virus; RNA; chickens; infectious bronchitis; specific pathogen-free animals; viral load; virulence; viruses; Arkansas;     Show all 11 Subjects
Abstract:
... Resistance to infectious bronchitis (IB) is a polygenic trait, but little is known about how resistance distributes in the host population. In this study, a relatively large number (n = 369) of specific-pathogen-free white leghorn chickens (Gallus gallus) were challenged with an Arkansas -type virulent IB virus (IBV), and resistance was evaluated 5 days after challenge by viral load (IBV RNA) in t ...
DOI:
10.1637/21-00092

12. Fibromodulin is involved in autophagy and apoptosis of granulosa cells affecting the follicular atresia in chicken

Author:
Shunshun Han; Jianping Wang; Can Cui; Chunlin Yu; Yao Zhang; Diyan Li; Menggen Ma; Huarui Du; Xiaosong Jiang; Qing Zhu; Chaowu Yang; Huadong Yin
Source:
Poultry science 2022 v.101 no.1 pp. 101524
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; RNA; abnormal development; apoptosis; autophagy; broodiness; eggs; follicular atresia; granulosa cells; homeostasis; luteinizing hormone; oviposition; poultry production; prolactin;     Show all 14 Subjects
Abstract:
... Follicular atresia is an important cause of reproductive decline in egg-laying hens. Therefore, a better understanding of the regulation mechanism of follicle atresia in poultry is an important measure to maintain persistent high egg performance. However, how the role of the regulatory relationship between autophagy and apoptosis in the intrafollicular environment affects the follicular atresia of ...
DOI:
10.1016/j.psj.2021.101524

13. Production and use of immunoglobulin Y in the diagnosis of haemorrhagic septicemia caused by Aeromonas hydrophila in Piaractus mesopotamicus

Author:
Dayanne Carla Fernandes; Silas Fernandes Eto; Gustavo da Silva Claudiano; Paulo Fernandes Marcusso; Fernando Carlos Ramos‐Espinoza; Julieta Rodini Engracia de Moraes
Source:
Aquaculture research 2022 v.53 no.7 pp. 2930-2936
ISSN:
1355-557X
Subject:
White Leghorn,   etc   ; Aeromonas hydrophila; Piaractus mesopotamicus; antibodies; aquaculture; blood serum; immunization; immunoglobulin Y; immunohistochemistry; mortality; opportunistic pathogens; phagosomes; research; septicemia;     Show all 14 Subjects
Abstract:
... Aeromonas hydrophila is an opportunistic pathogen frequently isolated from outbreaks with higher mortality rates in tropical farms, causing disease in pacus Piaractus mesopotamicus. The objective of this study was to obtain a purified polyclonal immunoglobulin Y (IgY) by immunizing laying White Leghorn hens with A. hydrophila. Antibodies anti‐A. hydrophila derived from the yolks and serum of hens ...
DOI:
10.1111/are.15808

14. Bone and eggshell quality throughout an extended laying cycle in three strains of layers spanning 50 years of selection

Author:
Charlene Hanlon; Kayo Takeshima; Elijah G. Kiarie; Grégoy Y. Bédécarrats
Source:
Poultry science 2022 v.101 no.3 pp. 101672
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; bone density; calcium; egg shell; egg shell thickness; egg weight; eggs; femur; genetic selection; metabolism; micro-computed tomography; tibia;     Show all 12 Subjects
Abstract:
... Decades of intensive genetic selection in commercial layers has resulted in earlier maturation, while sustaining high production rates to 100 wks of age (woa). To support eggshell formation while maintaining a healthy skeletal frame, substantial adaptations of calcium metabolism in the hen are necessary. Thus, skeletal growth, bone density, and egg quality were compared in 3 strains of layers, wit ...
DOI:
10.1016/j.psj.2021.101672

15. Effects of two-species probiotic combinations on production performance at peak lay, sulfur compounds in manure, and selected serum profile

Author:
K. Saksrithai; A.J. King
Source:
Journal of applied poultry research 2022 v.31 no.2 pp. 100234
ISSN:
1056-6171
Subject:
White Leghorn,   etc   ; blood serum; cages; carbon disulfide; carbonyl sulfide; digestive system; dimethyl disulfide; egg quality; hydrogen sulfide; methanethiol; probiotics; research; sulfur;     Show all 13 Subjects
Abstract:
... This study was conducted to evaluate effects of various 2-species combinations of probiotics (Lactobaccillus paracasei, Lactobaccillus plantarum, and Lactobaccillus rhamnosus at 3.33 × 10¹¹ cfu/kg of each species) on egg quality, serum parameters, and sulfur containing compounds in manure of laying hens. A total of 240 (32-wk-old) White Leghorn W36 laying hens were randomly separated into 5 treatm ...
DOI:
10.1016/j.japr.2022.100234

16. Methylsulfonylmethane ameliorates inflammation via NF-κB and ERK/JNK-MAPK signaling pathway in chicken trachea and HD11 cells during Mycoplasma gallisepticum infection

Author:
Yusong Miao; Dong Niu; Ze Wang; Jian Wang; Zhiyong Wu; Jiaxin Bao; Xiaodi Jin; Rui Li; Muhammad Ishfaq; Jichang Li
Source:
Poultry science 2022 v.101 no.4 pp. 101706
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; Mycoplasma gallisepticum; antioxidants; chickens; death; gene expression; histopathology; inflammation; macrophages; models; oxidative stress; pathogens; transcription factor NF-kappa B;     Show all 13 Subjects
Abstract:
... Mycoplasma gallisepticum (MG) is an avian pathogen that commonly causes respiratory diseases in poultry. Methylsulfonylmethane (MSM) is a sulfur-containing natural compound that could alleviate inflammatory injury through its excellent anti-inflammatory and antioxidant properties. However, it is still unclear whether MSM prevents MG infection. The purpose of this study is to determine whether MSM ...
DOI:
10.1016/j.psj.2022.101706

17. Do the differences in egg contamination, penetration, and resistance against microorganisms among the hen genotypes exist?

Author:
Adam Kraus; Lukáš Zita; Ondřej Krunt; Darina Chodová; Monika Okrouhlá; Józefa Krawczyk
Source:
Annals of animal science 2022 v.22 no.2 pp. 561-574
ISSN:
2300-8733
Subject:
White Leghorn,   etc   ; Enterococcus; Escherichia coli; egg contamination; egg shell quality; egg weight; eggs; genotype; microbial contamination; partridges; storage time; temperature; weight loss;     Show all 13 Subjects
Abstract:
... The aim of this study was to evaluate and compare the impact of genotype and storage conditions (temperature and time) on microbiological contamination and eggshell quality. There were four genotypes of laying hens used, Czech Golden Spotted (CGS), Greenleg Partridge (GP), White Leghorn (WL) and commercial hybrid (CH) hens were included. After collection, the eggs were divided equally into five gr ...
DOI:
10.2478/aoas-2021-0056

18. Drinking with electrolyzed reduced hydrogen-rich water alters egg quality, intestinal morphology, and antioxidant activities in heat-stressed layers

Author:
B. Zhang; C. Lu; Y. Zang; S. Bing; Q. Mo; D. Shu
Source:
Journal of applied poultry research 2022 v.31 no.2 pp. 100244
ISSN:
1056-6171
Subject:
White Leghorn,   etc   ; antioxidant activity; antioxidant enzymes; egg production; egg quality; eggs; feed intake; heat stress; jejunum; malondialdehyde; poultry; research; tap water; temperature; villi;     Show all 15 Subjects
Abstract:
... Supplementary antioxidant is often used to alleviate heat stress (HS). However, its efficiency will be affected by the decreased feed intake. Therefore, supplementary antioxidants by drinking method may be better than feeding as water consumption will increase unlike feed intake decrease under HS. This study confirmed the mitigating effect of drinking electrolyzed reduced hydrogen-rich water (ERW) ...
DOI:
10.1016/j.japr.2022.100244

19. Assessing the genomic diversity and relatedness in 10 Canadian heritage chicken lines using whole‐genome sequence data

Author:
Marzieh Heidaritabar; Valerie Carney; Martien A. M. Groenen; Graham Plastow
Source:
Journal of animal breeding and genetics 2022 v.139 no.5 pp. 556-573
ISSN:
0931-2668
Subject:
White Leghorn,   etc   ; Brown Leghorn; Rhode Island Red; Sussex (chicken breed); chickens; genetic selection; genetic variation; heterozygosity; males; meat; poultry industry; sires; Alberta; New Hampshire; Saskatchewan;     Show all 15 Subjects
Abstract:
... In the past 50 years, there has been a steep increase in the demand for poultry products, met by increasing production along with genetic selection for improved growth, efficiency, health and reproduction. The selection tends to reduce the number and type of genetic resources contributing to the majority of production. The University of Alberta maintains 10 heritage chicken lines (Brown Leghorn (B ...
DOI:
10.1111/jbg.12720

20. Determining the variation in premaxillary and dentary bone morphology that may underlie beak shape between two pure layer lines

Author:
S. Struthers; B. Andersson; M. Schmutz; H.A. McCormack; P.W. Wilson; I.C. Dunn; V. Sandilands; J.J. Schoenebeck
Source:
Poultry science 2021 v.100 no.12 pp. 101500
ISSN:
0032-5791
Subject:
White Leghorn,   etc   ; beak; geometry; morphometry; phenotypic variation;     Show all 5 Subjects
Abstract:
... Beak treatment is an effective method of reducing the damage inflicted by severe feather pecking (SFP) but there is significant pressure to eliminate these treatments and rely solely on alternative strategies. Substantial variation in beak shape exists within non-beak treated layer flocks and beak shape appears to be heritable. There is the potential to use this pre-existing variation and genetica ...
DOI:
10.1016/j.psj.2021.101500