scholarly journals Effect of Separate-Sex and Straight-Run Rearing on the Productivity of Korean Native Chickens

2021 ◽  
Vol 48 (3) ◽  
pp. 123-131
Author(s):  
Sea Hwan Sohn ◽  
Eun Sik Choi ◽  
Eun Jung Cho ◽  
Bo Gyeong Kim ◽  
Ka Bin Shin ◽  
...  
Keyword(s):  
Native Chickens

Genetic Variability and Relationships of Japanese Native Chickens Assessed by Means of Microsatellite Profiling Approach-Focusing on the Oh-Shamo (Japanese Large Game) and Its Related Breeds

2004 ◽  
Vol 41 (2) ◽  
pp. 94-109 ◽  
Author(s):  
Sayed Abdel-Maksoud Osman ◽  
Masashi Sekino ◽  
Masahide Nishibori ◽  
Yoshi Kawamoto ◽  
Keiji Kinoshita ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Native Chickens

scholarly journals Virulence and Antimicrobial Resistance Profiles of Salmonella enterica Serovars Isolated from Chicken at Wet Markets in Dhaka, Bangladesh

2021 ◽  
Vol 9 (5) ◽  
pp. 952
Author(s):  
Nure Alam Siddiky ◽  
Md Samun Sarker ◽  
Md. Shahidur Rahman Khan ◽  
Ruhena Begum ◽  
Md. Ehsanul Kabir ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Salmonella Enterica ◽  
Virulence Genes ◽  
Health Concern ◽  
Production Cycle ◽  
Salmonella Spp ◽  
Native Chicken ◽  
Resistance Patterns ◽  
Research Findings ◽  
Native Chickens

Virulent and multi drug resistant (MDR) Salmonellaenterica is a foremost cause of foodborne diseases and had serious public health concern globally. The present study was undertaken to identify the pathogenicity and antimicrobial resistance (AMR) profiles of Salmonellaenterica serovars recovered from chicken at wet markets in Dhaka, Bangladesh. A total of 870 cecal contents of broiler, sonali, and native chickens were collected from 29 wet markets. The overall prevalence of S. Typhimurium, S. Enteritidis, and untyped Salmonella spp., were found to be 3.67%, 0.57%, and 1.95% respectively. All isolates were screened by polymerase chain reaction (PCR) for eight virulence genes, namely invA, agfA, IpfA, hilA, sivH, sefA, sopE, and spvC. S. Enteritidis isolates carried all virulence genes whilst S. Typhimurium isolates carried six virulence genes except sefA and spvC. A diverse phenotypic and genotypic AMR pattern was found. Harmonic descending trends of resistance patterns were observed among the broiler, sonali, and native chickens. Interestingly, virulent and MDR Salmonella enterica serovars were found in native chicken, although antimicrobials were not used in their production cycle. The research findings anticipate that virulent and MDR Salmonella enterica are roaming in the wet markets which can easily anchor to the vendor, consumers, and in the food chain.

scholarly journals Identification of Target Chicken Populations by Machine Learning Models Using the Minimum Number of SNPs

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 241
Author(s):  
Dongwon Seo ◽  
Sunghyun Cho ◽  
Prabuddha Manjula ◽  
Nuri Choi ◽  
Young-Kuk Kim ◽  
...  
Keyword(s):  
Machine Learning ◽  
Learning Algorithms ◽  
Machine Learning Algorithms ◽  
Fixation Index ◽  
Machine Learning Classification ◽  
Genetic Components ◽  
Marker Combination ◽  
A Genome ◽  
Minimum Number ◽  
Native Chickens

A marker combination capable of classifying a specific chicken population could improve commercial value by increasing consumer confidence with respect to the origin of the population. This would facilitate the protection of native genetic resources in the market of each country. In this study, a total of 283 samples from 20 lines, which consisted of Korean native chickens, commercial native chickens, and commercial broilers with a layer population, were analyzed to determine the optimal marker combination comprising the minimum number of markers, using a 600 k high-density single nucleotide polymorphism (SNP) array. Machine learning algorithms, a genome-wide association study (GWAS), linkage disequilibrium (LD) analysis, and principal component analysis (PCA) were used to distinguish a target (case) group for comparison with control chicken groups. In the processing of marker selection, a total of 47,303 SNPs were used for classifying chicken populations; 96 LD-pruned SNPs (50 SNPs per LD block) served as the best marker combination for target chicken classification. Moreover, 36, 44, and 8 SNPs were selected as the minimum numbers of markers by the AdaBoost (AB), Random Forest (RF), and Decision Tree (DT) machine learning classification models, which had accuracy rates of 99.6%, 98.0%, and 97.9%, respectively. The selected marker combinations increased the genetic distance and fixation index (Fst) values between the case and control groups, and they reduced the number of genetic components required, confirming that efficient classification of the groups was possible by using a small number of marker sets. In a verification study including additional chicken breeds and samples (12 lines and 182 samples), the accuracy did not significantly change, and the target chicken group could be clearly distinguished from the other populations. The GWAS, PCA, and machine learning algorithms used in this study can be applied efficiently, to determine the optimal marker combination with the minimum number of markers that can distinguish the target population among a large number of SNP markers.

Thai native chicken meat: an option to meet the demands for specific meat quality by certain groups of consumers; a review

2017 ◽  
Vol 57 (8) ◽  
pp. 1582 ◽  
Author(s):  
S. Jaturasitha ◽  
N. Chaiwang ◽  
M. Kreuzer
Keyword(s):  
Meat Quality ◽  
Heart Diseases ◽  
Saturated Fatty Acids ◽  
High Ratio ◽  
Muscle Fibres ◽  
Type I ◽  
Indigenous Chicken ◽  
Coronary Heart Diseases ◽  
Native Chickens ◽  
Tropical Climates

Native chickens are slowly growing indigenous chicken (Gallus domesticus) breeds; many of them were developed from jungle fowl, which is found in every part of Asia. These breeds are disease resistant, easy adapting to tropical climates, and have a low mortality. In Thailand, a distinct sector of consumers prefers to eat meat from native chickens rather than that from broilers because it is more tasty and chewy. In addition, studies have shown that it has a low content of fat which may be helpful for people susceptible to coronary heart diseases. This review also compiles evidence for further indicators of a special meat quality such as more oxidative (Type I) muscle fibres, a higher collagen content (promoting the preferred chewiness), an elevated content of certain flavor-relevant compounds, as well as high ratio of polyunsaturated to saturated fatty acids.

scholarly journals The hematological profile and immune response treated by heat stress on “Gaok” native chickens

2021 ◽  
Vol 672 (1) ◽  
pp. 012041
Author(s):  
D Pantaya ◽  
R Y Pratama ◽  
T A Marjiatin ◽  
N. Ningsih ◽  
G. Syaikhullah
Keyword(s):  
Immune Response ◽  
Heat Stress ◽  
Hematological Profile ◽  
Native Chickens

​Effect of Hydrilla verticillata in Feed on Production Performance and Carcass Characteristics of Thai Native Chickens

2021 ◽  
Author(s):  
P. Boonkeaw ◽  
W. Ngampongsai ◽  
N. Preuksa
Keyword(s):  
Body Weight Gain ◽  
Agricultural Waste ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Hydrilla Verticillata ◽  
Production Performance ◽  
Feed Conversion ◽  
Randomized Design ◽  
Native Chicken ◽  
Native Chickens

Background: Producing Thai native chickens through feed commercial is costly. To reduce the cost, native chicken could be fed with local plants or agricultural waste. Hyrrilla verticillate, a dominate macrophyte in Songkhla Lagoon, contain high crude protein and nitrogen free extract. Therefore, this research studied the use of Hydrilla verticillate in Thai native chicken diet on production performance, carcass characteristics and production cost. Methods: The experiment was executed in a completely randomized design (CRD) with 180 one-day-old commercial Thai native chicks. Four dietary treatments supplemented with 0%, 5%, 10% and 15% Hydrilla verticillata were formulated for three different phases of the experimental chickens: starter (1-4 weeks), grower (5-8 weeks) and finisher (9-12 weeks). Two chickens from each replicate were chosen for the carcass characteristics study. Result: During the starter phase, there was no notable effect shown among the chickens fed with the diet containing Hydrilla verticillata in terms of feed intake (FI) and body weight gain (BWG) (P greater than 0.05). The control chickens had best feed conversion ratio (FCR) (P less than 0.05), while the grower and the finisher periods, provided with different levels of Hydrilla verticillata, revealed no apparent differences (P greater than 0.05) concerning FI, BWG and FCR. Considering carcass characteristics, there were significant differences in live weight (LW) (P less than 0.05). But, no significant differences between treatments for hot carcass percentage, pectoralis majors, pectoralis minorstrip, thighs, wings, drumsticks and total edible carcass (P greater than 0.05). There were also statistical divergences regarding gizzard weight (GW) (P less than 0.05).

scholarly journals Prevalence of Eimeria species in scavenging native chickens of Shiraz, Iran

2011 ◽  
Vol 5 (20) ◽  
pp. 3296-3299 ◽  
Author(s):  
Mehdi Hadipour Mohammad ◽  
Olyaie Ahad ◽  
Naderi Mohammad ◽  
Azad Fariborz ◽  
Nekouie Omid
Keyword(s):  
Eimeria Species ◽  
Native Chickens

Behaviour and reproductive performance of Nigerian native chickens subjected to different mating ratios for a short term

2020 ◽  
Vol 55 (5) ◽  
pp. 567-573
Author(s):  
Oluwaseun Serah Iyasere ◽  
David Oluwatowo Adeuyi ◽  
Rasheed Adebayo Alade ◽  
Samuel Olutunde Durosaro ◽  
Mathew Wheto ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Short Term ◽  
Native Chickens

scholarly journals Growth Performance of Philippine Native Chicken Fed Diet Supplemented with Varying Levels of Madre de Agua (Trichanthera gigantea Nees) Leaf Meal

2016 ◽  
pp. 174-182
Author(s):  
Clarita Morbos ◽  
Dinah Espina
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Average Daily Gain ◽  
Production Performance ◽  
Feed Conversion ◽  
Leaf Meal ◽  
Randomized Design ◽  
Commercial Chicken ◽  
Confinement System ◽  
Native Chickens

This study aimed to assess the effects of different levels of Trichanthera gigantea leaf meal (TGLM) supplementation on the growth performance of Philippine Native chickens fed commercial chicken grower ration. A total of 96 three-month old native chickens of two sexes were randomly distributed to the four treatments with 3 replicates and 4 chickens per replicate in a 2 x 4 factorial in Completely Randomized Design (CRD). Under semi-confinement system, the dietary treatments consisted of 0, 5, 10, and 15% levels of TGLM supplementation for 13 weeks. Results revealed that cumulative voluntary feed intake (VFI) increased as TGLM supplementation increased, and was significantly highest with 15% level at weeks 10, 11 and 12. Although differences were not significant except at weeks 4 and 7, there was a decreasing trend in cumulative weight gain (CWG) with increasing TGLM level. Average daily gain (ADG) was not significantly affected by varying levels of TGLM supplementation, and feed conversion efficiency (FCE) showed a decreasing trend as TGLM level increased and was only significantly low (p<0.01) with 15% level at week 7. Comparing between sexes, the males were significantly higher than females in all production performance parameters. Therefore, TGLM is palatable but not adequate enough to supply the nutrients needed for a comparable weight gain with that of 0% supplementation, and a 5 10% inclusion in the diet is recommended.

scholarly journals Differential Proteome Analysis of Breast and Thigh Muscles between Korean Native Chickens and Commercial Broilers

2012 ◽  
Vol 25 (6) ◽  
pp. 895-902 ◽  
Author(s):  
Xian De Liu ◽  
Dinesh D. Jayasena ◽  
Yeonkuk Jung ◽  
Samooel Jung ◽  
Bo Seok Kang ◽  
...  
Keyword(s):  
Proteome Analysis ◽  
Thigh Muscles ◽  
Native Chickens
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