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Journal articles on the topic 'Frizzle feather'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Nosike, R. J., J. C. Ezike, C. N. Odukwe, O. F. Nwakpu, C. N. Okocha, and D. N. Onunkwo. "Naked-neck and frizzled feather fowls are high performance laying local chicken in Nigeria." Nigerian Journal of Animal Production 44, no. 5 (2020): 9–13. http://dx.doi.org/10.51791/njap.v44i5.1463.

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The study was conducted to investigate the effect of genotype on the laying performance of Nigerian local chicken. The experiment was carried out using 99 local chicken of the three genotypes, comprising of 90 hens and 9 cocks (33 frizzle feather, 33 naked-neck feather and 33 normal feathered). Eggs were collected from the different genotypes for 8 weeks. The laying performance traits were egg number, hen-housed (%) and hen-day (%) egg production. Data collected were subjected to ANOVA in a completely randomised design. The hen-day egg production showed significant differences (P<0.05) in a

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2

Ahemen, T., J. Ochefu, and S. Mtem. "Biometry of Male Genitalia and Internal Organ Characteristics of Indigenous Genotypes of Domestic Fowl in the Southern Guinea Savanna Region of Nigeria." Greener Journal of Agricultural Sciences 6, no. 4 (2016): 167–72. https://doi.org/10.15580/GJAS.2016.4.031716065.

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A total of Thirty Nigerian indigenous genotypes of the domestic fowl, aged between 22-25 weeks were used to evaluate the biometry of male genitalia and internalorgan characteristics.The result showed significant (p<0.05) effect of genotype, on right epididymis weight with naked neck having a higher mean value of  0.17±  0.60g and normal feather with least value of 0.14± 0.03g. The paired vas deferensweight was significantly higher for frizzle feather (0.90± 0.12g. lower in normal feather (0.67± 0.24g) and naked neck (0.64± 0.15). The left testis

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3

Wheto, Mathew, Ayodele Oguntuase, Adeyemi Adenaike, et al. "Sequence analysis of exon 1 and intron 1 of growth hormone gene in six chicken genotypes raised in tropical environment." Biotehnologija u stocarstvu 38, no. 1 (2022): 41–54. http://dx.doi.org/10.2298/bah2201041w.

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Alpha % Growth hormone gene % Nigerian indigenous chicken % SNPs KR nema Chicken growth hormone (cGH) is a polypeptide hormone secreted by the pituitary gland which is responsible for several functions such as tissue growth and reproduction in chickens. This study was conducted to characterize six chicken genotypes using exon 1 and intron 1 regions of cGH gene sequences. One hundred and thirty-four (134) chickens comprising Normal feather (19), Naked neck (21), Frizzle feather (8), Arbor Acre (24), FUNAAB Alpha-1 (dihybrid) (31), and FUNAAlpha-2 (trihybrid) (31) were used for the study. Blood

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4

Chen, B., S. Xi, H. K. El‐Senousey, et al. "Deletion in KRT75L4 linked to frizzle feather in Xiushui Yellow Chickens." Animal Genetics 53, no. 1 (2021): 101–7. http://dx.doi.org/10.1111/age.13158.

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5

Atansuyi, A. J., U. C. Ihendu, and C. A. Chineke. "Growth performance, correlation and regression estimates of seven-chicken strains in South-Western Nigeria." Nigerian Journal of Animal Production 45, no. 2 (2020): 40–48. http://dx.doi.org/10.51791/njap.v45i2.522.

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This study was conducted to determine the growth performance, correlation and regression estimates of seven-chicken strains in South-western Nigeria using a total of 300 day-old chicks. The birds were divided into seven groups based on their strain. The seven strains are Normal feather (NF), Fulani ecotype (FE), Frizzle feather (FF), naked neck (NN) and Transylvania indigenous strains while Hubbard and Marshal were meat-type exotic chickens. There were forty- five (45) unsexed day-old chicks in each strain except the Frizzle feather that were 30 in number. Completely randomized design (CRD) wa

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Ng, Chen Siang, Ping Wu, John Foley та ін. "The Chicken Frizzle Feather Is Due to an α-Keratin (KRT75) Mutation That Causes a Defective Rachis". PLoS Genetics 8, № 7 (2012): e1002748. http://dx.doi.org/10.1371/journal.pgen.1002748.

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7

ILORI, Babatunde Moses, Matthew Adekunle ADELEKE, Adebisi Adegboyega ADELEYE, et al. "Haemoparasite Prevalence, Genetic Diversity of TLR2B Gene and Relationship with Haematological Parameters in Chicken." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Animal Science and Biotechnologies 79, no. 2 (2022): 19–31. http://dx.doi.org/10.15835/buasvmcn-asb:2022.0002.

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Haemoparasite constitute a major challenge in native chicken production in Africa. This study determines the genetic diversity and the effect of TLR2B gene polymorphism on haemoparasite and haematology of the chickens based on genotype and sex. 600 chickens of 25 weeks old consisting of Naked neck (NN), Normal feather (NF), and the Frizzle feather (FF) reared in battery cage-system were sampled for blood and analyzed for haematology, parasite occurrence and load, polymerase chain reaction, and gene sequencing. Polymorphisms were detected and their effect on haematology was determined. Results

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OYELEYE, Rebecca O., Adeyemi Sunday ADENAIKE, Olajide K. BELLO, Christiana Temitope AKINRINOLA, Tolutope Rhoda ADEWUYI, and Christian Obiora N. IKEOBI. "Heritability of Body Weight, Growth Rate Indices and Their Association with Insulin-Like Growth Factor-2 Gene Polymorphism in Purebred Nigerian Indigenous Chickens and their Crosses with Marshal Chickens." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Animal Science and Biotechnologies 80, no. 2 (2023): 36–43. http://dx.doi.org/10.15835/buasvmcn-asb:2023.0007.

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This research was conducted to estimate heritability of body weight and growth rate indices and also to determine their association with insulin-like growth factor-2 genes (IGF-2) polymorphism in purebred Nigerian indigenous chickens and their crosses with Marshal chickens. A total of 300 progenies were generated from the mating of three genotypes of F5 generation of Nigerian indigenous chickens (Normal feather (N), Frizzle feather (F), Naked neck (NN)) and Marshal (M) chickens. Blood samples were collected at twenty weeks for DNA extraction and IGF-2 gene amplification. IGF-2 gene was digeste

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9

Abiola, Popoola Moshood, Lamidi Luqman O, Raji Ademola Moshood, Adebisi Gbadebo Luqman, Onuoha Chinyere Joy, and Olaoye Ridwan Oyebamiji. "Households' Choice of Genotypes and Traits of Preference in Yoruba Ecotype Chicken in Ibadan, Nigeria." Agricultural Science 2, no. 1 (2020): p23. http://dx.doi.org/10.30560/as.v2n1p23.

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This study aimed at evaluating Yoruba Ecotype chicken genotypes of choice and traits of preference in the chicken by households in Ibadan, Nigeria. Data were obtained from a total of 120 households using structured interview schedule. Data were subjected to both descriptive statistics and Principal Components Analysis (PCA). Results revealed that most of the respondents were female; they raised the chicken for income generation and consumption. Most of the respondents preferred normal feather Yoruba Ecotype chicken to other genotypes. The result also revealed that traits of preference by most

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Abe, O. S., B. M. Ilori, and M. O. Ozoje. "Comparison of nonlinear functions in male and female chickens at different seasons using restricted Maximum Likelihood Approach." ADAN Journal of Agriculture 3, no. 1 (2022): 77–90. http://dx.doi.org/10.36108/adanja/2202.30.0190.

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Weekly body weight data from 133 offspringsof Bovan Nera (NB), 93 of White Leghorn (WL), 105 of Giriraja(GR), 197 of Naked Neck (NN), 164 of Frizzle Feather (FF), 186 of Normal Feather (NF) and 115 of improved indigenous FUNAAB Alpha chicken (BA) were used for the study. The birds were individually wing tagged at day old for proper identification purpose. They were brooded in a brooding cage for the first three weeks then housed and reared on a deep litter until twenty weeks of age. Feed and water was givenad libtum. Weekly weight gain of the birds were subjected to four nonlinear growth model

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11

Ige, Azeem Oladiran, Hammed Opeyemi Oladipupo, Joy Oluwatosin Ajibulu, Hammed Olayemi Salawu, Matt-Obabu Abimbola Deborah, and Kafayat Oladayo Akinniran. "Genetic diversity of ghrelin gene SNPs in Nigerian Indigenous chickens and its influence on growth traits." Brazilian Journal of Science 4, no. 8 (2025): 57–65. https://doi.org/10.14295/bjs.v4i8.765.

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Genetic diversity in functional genes, such as the ghrelin gene, plays a significant role in understanding growth and productivity traits in chickens. This study investigates the genetic variability of the ghrelin gene in Nigerian indigenous chickens (NICs) and evaluates its potential influence on growth traits. Nigerian indigenous chickens are renowned for their adaptability to harsh environments, disease resistance, and cultural significance, but they are characterized by low productivity compared to exotic breeds. Blood was collected from samples of three major ecotypes of NICs: Naked Neck,

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12

Olufowobi, Olanrewaju Teslim, Babatunde Moses Ilori, Olajide Olowofeso, Olajide Mark Sogunle, and Adewunmi Omolade Omotoso. "Genetic variation of the major histocompatibilty complex-B haplotypes in Nigerian local chicken populations." Agricultura Tropica et Subtropica 53, no. 4 (2020): 175–81. http://dx.doi.org/10.2478/ats-2020-0017.

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AbstractTo understand the genetic basis and mechanism underlying the differences in the level of immunity among and within chicken populations in Nigeria, it is important to start from the Major Histocompability Complex (MHC) region particularly as it serves as a reservoir for genes of the immune system. The B-complex of chicken major histocompatibility complex, located on microchromosome 16, consists of gene classes responsible for immunity through antigen presentation to T cells. A highly polymorphic tandem repeat marker (LEI0258) located within the B-complex has been a marker of choice for

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13

Japhet, Yeigba, Toipre Samuel, and Kai Bolouzimo. "Physicochemical and Structural Validation of Myxovirus Resistance 1 (Mx1) Protein of Three Strains of the Nigerian Indigenous (<i>Gallus Gallus domesticus</i>) and Exotic Chickens." International Journal of Biochemistry, Biophysics & Molecular Biology 9, no. 2 (2024): 25–41. http://dx.doi.org/10.11648/j.ijbbmb.20240902.11.

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This research was conducted on three strains of Nigerian Indigenous (&lt;i&gt;gallus gallus domesticus&lt;/i&gt;) and Noiler (exotic) chickens. It examined the physicochemical and structural validation of Myxovirus resistance 1 (Mx1) protein on the three strains of Nigerian indigenous (naked neck, frizzle feather, normal feather) and noiler (exotic) chickens and also the prediction of the Physicochemical Analysis of protein. Nucleotide sequence were retrieved from National Center for Bio-Technology Information (NCBI) database and subjected to multiple sequence alignment, predic

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14

AKPAN, Ubong, Victor Oluwabukunmi OLOWOOKERE, and Christian Obiora Ndubuisi IKEOBI. "RELATIONSHIP BETWEEN PITUITARY SPECIFIC TRANSCRIPTION FACTOR-1 (PIT-1) GENOTYPIC VARIANTS AND NON-LINEAR GROWTH CURVE PARAMETERS IN FUNAAB ALPHA CHICKENS." Slovak Journal of Animal Science 58, no. 1 (2024): 3–12. https://doi.org/10.36547/sjas.930.

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This research was designed to identify genotypic variants in pituitary specific transcription factor-1 (PIT-1) gene and determine the relationship between PIT-1 genotypic variants and growth rate indices, with non-linear growth model parameters in FUNAAB Alpha chickens. Four non-linear growth models (Brody, Gompertz, Logistic and Bertalanffy) were fitted to measure the body weight of FUNAAB alpha chickens at 8 weeks of age. This analysis was conducted using the NLIN procedure of the SAS software (Version 9.2). The Akaike information criteria (AIC), Bayesian information criteria (BIC), Means Sq

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15

Botchway, Princess K., Esinam N. Amuzu-Aweh, Augustine Naazie, et al. "Genotypic and phenotypic characterisation of three local chicken ecotypes of Ghana based on principal component analysis and body measurements." PLOS ONE 19, no. 8 (2024): e0308420. http://dx.doi.org/10.1371/journal.pone.0308420.

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This study aimed to characterise three Ghanaian local chicken ecotypes, namely, Interior Savannah, Forest, and Coastal Savannah, based on morphological data and single nucleotide polymorphism (SNP) genotypes. Morphological data including body weight, shank length, body girth, back length, thigh length, beak length, comb length, and wattle length were collected from 250 local chickens. DNA isolated from blood of 1,440 local chickens was used for SNP genotyping with the Affymetrix chicken 600k SNP chip. Principal component analysis showed that Forest and Coastal Savannah birds were closely relat

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16

M., Whetto, N. G. Chima, N. G. Chima, et al. "Insulin-like growth factor-1 (Igfi) gene polymorphism and its effect on egg quality traits of three chicken genotypes reared in hot humid tropics." Nigerian Journal of Animal Production 49, no. 6 (2023): 107–20. http://dx.doi.org/10.51791/njap.v49i6.3860.

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A study was conducted on the effect of gene polymorphism of Insulin like Growth Factor-1 (IGFI) on egg quality traits in three chicken genotypes. A total of 250 chicken comprising 150 FUNAAB-Alpha (50 Normal feather, 50 Naked neck and 50 Frizzle feather), 50 Kuroiler and 50 Sasso were used for this experiment. At point of lay, 30 hens per genotype were selected and transferred into a battery cage of one unit per bird. Data was collected on the egg quality traits, 30 eggs for each genotype was collected. All collected data was subject to analysis of variance using a completely randomized design

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17

Magothe, Thomas M., William B. Muhuyi, and Alexander K. Kahi. "Influence of major genes for crested-head, frizzle-feather and naked-neck on body weights and growth patterns of indigenous chickens reared intensively in Kenya." Tropical Animal Health and Production 42, no. 2 (2009): 173–83. http://dx.doi.org/10.1007/s11250-009-9403-y.

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18

Adedeji, T.A, S.R Amao, O.M Ogundairo, and O.A Fasoyin. "HEAT TOLERANCE ATTRIBUTES OF NIGERIAN LOCALLY ADAPTED CHICKENS AS AFFECTED BY STRAIN AND SOME QUALITATIVE TRAITS." Continental J. Agricultural Science 9, no. 2 (2015): 10–18. https://doi.org/10.5281/zenodo.844396.

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This study was undertaken to determine the heat tolerance attributes of Nigerian locally adapted chicken as affected by strain and some qualitative traits. The experimental birds consisted of four matured strains. A total number of 120 healthy matured birds consist of 30 each of Naked Neck, Normal Feather, Fulani and Frizzle feather. Each bird was monitored and measured for the number of comb cups, comb length, comb height, wattle height and width at the beginning of the experiment and recorded for each strain. Data were obtained on a daily basis (afternoon) for 12 weeks. The measurement taken

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19

Ume, S. I., M.O Okorokwo, E. B. Onwujiariri, and C. I. Agu. "Evaluation of the Adoption of Improved Village Chicken Production Technologies in Ivo Local Government Area of Ebonyi State, Nigeria." International Journal of Case Studies 7, no. 5 (2018): 34–42. https://doi.org/10.5281/zenodo.3539789.

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Evaluation of the adoption of improved village chicken production technologies in Ivo Local Government Area of Ebonyi State, Nigeria was studied. The specific objectives of of the study were to; (i)describe the socioeconomic characteristics of the farmers, (ii) assess the level of village chicken production technologies adoption by the farmers, (iii)identify the breeds of local chicken reared by the farmers, (iv)determine the effect of the farmers’ socio economic characteristics on their technology adoption, and (v) identify the constraints to village chicken production in the study area

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20

Nwachukwu, E. N., and C. C. Ogbu. "Effect of feathering genes on growth performance of F2 backcrosses and comparison of F1 and F2 crosses of Abor Acre broiler breeder x native chickens in humid tropical environment." Nigerian Journal of Animal Production 41, no. 2 (2021): 19–33. http://dx.doi.org/10.51791/njap.v41i2.770.

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This study was conducted to evaluate growth performance, brooding and rearing mortalities of F2 main and reciprocal backcross progenies of Abor Acre broiler breeder x native chicken crosses and to compare their F1 and F2 backcross progenies. The base population used in the study consisted of mature (~ 48 weeks) male and female native chickens and exotic (Abor Acre) broiler breeder parent stock. The native chicken varieties were made up of normal feather, naked neck and frizzle genotypes. These birds were mated to the Abor Acre broiler parent stocks in main and reciprocal fashion generating F1

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Audu, Mercy O., O. Michael Momoh, and Henry O. Ukwu. "COMPARATIVE STUDY OF EARLY GROWTH PERFORMANCE OF NAKED NECK, NORMAL AND FRIZZLE-FEATHERED NIGERIAN NATIVE CHICKENS REARED UNDER INTENSIVE SYSTEM IN GUINEA SAVANNAH." FUDMA JOURNAL OF SCIENCES 9, no. 2 (2025): 23–27. https://doi.org/10.33003/fjs-2025-0902-3044.

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This study investigated the early growth performance of naked neck, normal and frizzle-feathered Nigerian native chickens, under intensive system. 150 chicks, comprising 50 chicks from each genotype, were used in a 3 X 2 factorial arrangement in a Completely Randomized Design (CRD), with genotype and sex as factors of interest. Data were collected on hatch weight, weekly body weights, and total weight gain. The result showed no significant genotype effect (P>0.05) on hatch weight and body weight at week one. From week 3 to week 8, naked neck and frizzle-feathered chicks had comparable body

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22

ISAAC, Ugwumba Chijioke. "Repeatability of linear body measurements and principal components of body size in crossbred Nigerian local chickens." Agriculture, Food and Natural Resources Journal 4, no. 1 (2025): 92–100. https://doi.org/10.5281/zenodo.15109690.

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<em>The study aimed at estimating the repeatability of growth traits and principal components of body size (PC1) of crossbred Nigerian local chickens using 5 biweekly records. A total of 123, 49, 116, 137, 42, and 64 chickens of Isa Brown × frizzle feathered (IB×F), Isa Brown × naked neck (IB×Na), Isa Brown × normal feathered (IB×N), frizzled feathered × Isa Brown (F×IB), naked neck × Isa Brown (Na×IB), and normal feathered × Isa Brown (N×IB) genotypes, respectively, were produced at day-old in 12 hatches. Data were taken

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Peters, S. O., C. O. N. Ikeobi, M. O. Ozoje, O. A. Famakinwa, Y. S. Oshodi, and O. A. Adebambo. "EGG QUALITY OF THE NIGERIAN LOCAL CHICKEN AS INFLUENCED BY SOME MAJOR GENES." Nigerian Journal of Animal Production 34, no. 1 (2021): 25–31. http://dx.doi.org/10.51791/njap.v34i1.2415.

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An investigations was carried out to determine the effect of the major genes of frizzling and naked neck on the external and internal egg quality traits of the Nigerian local chicken. Egg weight significantly (P < 0.01) favoured the frizzled local chicken and the naked-necked local chicken over the fully feathered (normal ) local chicken. The frizzling gene, F, caused an increase of 8.13% in weight while the naked neck gene Na, increased egg weight by 5.85%. The Na gene caused the production of better egg shape index (0.73) when compared to F and nana, ff genotypes. Eggs of frizzed and nake

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24

Chimenem-Amadi, S. N., V. U. Oleforuh-Okoleh, B. O. Agaviezor, and H. H. Gunn. "Comparative study of body weight and some performance traits of improved Nigerian indigenous chickens raised in the south-south region of Nigeria." Nigerian Journal of Animal Production 48, no. 3 (2021): 14–22. http://dx.doi.org/10.51791/njap.v48i3.2970.

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The study was carried out to assess the variation in body weight and some performance traits among improved Nigerian indigenous chickens in the South-South region of Nigeria to make recommendations needed for further improvement of the Nigerian local chickens in this region. One hundred and fifty birds of mixed sexes comprised of 50 Naked neck, 50 Normal feathered and 50 Frizzled feathered were kept for 16 weeks. During this period, daily data on feed intake and feed conversion ratio as well as weekly data on body weight, wing length, shank length, drum stick, body length, height at withers an

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25

Nwaogwugwu, U. C., and U. H. Udoh. "Growth rates of main and reciprocal crosses of Isa Brown and local chickens." Nigerian Journal of Animal Production 46, no. 2 (2020): 1–7. http://dx.doi.org/10.51791/njap.v46i2.1.

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The absolute and relative instantaneous growth rates of F1 hybrid chickens were determined at 2- 10 and 12-20 week periods of growth. The hybrids were hatched from eggs laid by 69 Isa Brown and local chicken parents. A total of 123, 49 and 116 chicks of Isa Brown x frizzle feathered (IBxF), Isa Brown x naked neck (IBxNa) and Isa Brown x normal feathered IBxN) main crosses and 137, 42 and 64 chicks of frizzle feathered x Isa Brown (FxIB), naked neck x Isa Brown (Na x IB) and normal feathered x Isa Brown (NxIB) reciprocal crosses, respectively were produced at day-old. The greatest absolute grow

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NWEKE-OKOROCHA, Obiageri Genevieve, Hollinshead.Holly GUNN, and Brilliant Ogagaoghene AGAVIEZOR. "Estimate of Parameters in Allometry Function Fitted for Body Weight and Linear Body Measurements of Frizzle Feathered, Naked Neck, Noiler and Normal Feathered Chickens." International Journal of Innovative Science and Research Technology 7, no. 3 (2022): 116–20. https://doi.org/10.5281/zenodo.6372428.

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This study was carried out with 240 indigenous day-old chickens comprising of mixed sex frizzle feathered, naked neck, normal feathered and Noiler raised to 16 weeks of age to predict the body weight of 4 stains of Nigerian local and improved chickens using multiple linear regression and allometry function/model fitted for body weight and linear body measurements of the 4 stains of chicken. Data generated was subjected to multiple linear regression, allometry analysis and prediction using SAS 9.2 (Version 2008). Result of Prediction using multiple linear regression and allometry functions fitt

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Isaac, U. C., U. H. Udoh, and R. J. Nosike. "Effect of genotype on semen quality traits of main and reciprocal crossbred chickens." Nigerian Journal of Animal Production 46, no. 2 (2020): 32–39. http://dx.doi.org/10.51791/njap.v46i2.6.

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Semen quality of cocks is of utmost importance in reproduction. Breeding method, breed, strain and genetic constitution are the major components of the genetic factors capable of affecting the semen quality of cocks. This research seeks to determine the effect of genotype on the semen quality traits of 272 F crossbred cocks produced at day-old by main and 1 reciprocal crossbreeding of 69 Isa Brown and local frizzle feathered, naked neck and normal feathered chickens. The genotypes of the cocks were Isa Brow x frizzle feathered main cross (IBxF), Isa Brown x naked neck main cross (IBxNa), Isa B

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J., I. KPEREGBEYI, and M. ORHERUATA A. "BODY WEIGHT AND MORPHOMETRICS OF FRIZZLE FEATHERED AND PLYMOUTH ROCK BREEDS AND THEIR F1 AND F2 CROSBRED." GPH-International Journal of Agriculture and Research 05, no. 08 (2022): 49–58. https://doi.org/10.5281/zenodo.7006831.

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The study was conducted at the Poultry Research Center (PRC) of the Faculty of Agriculture, DSUST, Ozoro, to evaluate body weight (BWT) and body morphometrics (BM) of Frizzle feathered (FF) chicken and Plymouth Rock (PR) breed and their F<sub>1 </sub>and F<sub>2 </sub>crossbred. One hundred and sixty-eight (165) sexually matured FF chickens were reared on deep litter system. It comprises of one 150 FF chicken and 15 PR cock and was bred (natural). The first cross was between FF and PR cock produced 50 % indigenous (I) and 50 % exotic (E) in first filial generation. The second cross was an <em>

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Fathi, Moataz, Ibrahim Al-Homidan, Gamal Rayan, Salah El-Safty, Tarek Ebeid, and Osama Abou-Emera. "Laying performance, immune response and antioxidant properties of hens segregating for naked neck and frizzle genes under low ambient temperature." Czech Journal of Animal Science 64, No. 5 (2019): 216–25. http://dx.doi.org/10.17221/221/2018-cjas.

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Major genes could be introgressed into laying hens to attenuate heat stress. However, under cold and/or moderate ambient temperature, these genes might possess different behaviour. The main objective of this study was to evaluate laying performance, immune response, and antioxidant status of native laying hens segregating for naked neck (Na) and frizzle (F) genes under low ambient temperature. Five genotypes were studied: homozygous naked neck (NaNaff), heterozygous naked neck (Nanaff), homozygous frizzle (nanaFF), heterozygous frizzle (nanaFf), and normally feathered (nanaff). The hens were r

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Isaac, Ugwumba C. "PHENOTYPIC, GENETIC AND ENVIRONMENTAL CORRELATIONS BETWEEN BODY WEIGHT AND LINEAR BODY TRAITS OF CHICKEN GENOTYPES." Agrobiological Records 4 (2021): 32–43. http://dx.doi.org/10.47278/journal.abr/2020.026.

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Data from 123, 49, 116, 137, 42 and 64 chickens belonging to Isa Brown x frizzle feathered (IBxF), Isa Brown x naked neck (IBxNa), Isa Brown x normal feathered (IBxN), frizzle feathered x Isa Brown (FxIB), naked neck x Isa Brown (NaxIB) and normal feathered x Isa Brown (NxIB) genotypes, respectively were used to establish phenotypic (rP), genetic (rG) and environmental (rE) correlations between body weight and linear body traits at 2, 10 and 20 weeks of age. Phenotypic correlations were analyzed by Pearson’s Product Moment method. Genetic and environmental correlations were estimated by covari

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C. Isaac, Ugwumba, Reginald J. Nosike, Jonas Ezea, Helen C. Ezejesi, Benedethe N. Ezenyilimba, and Sylvester N. Ibe. "HERITABILITY OF BODY WEIGHT AND LINEAR BODY MEASUREMENTS OF ISA BROWN x LOCAL CHICKEN GENOTYPES." International Journal of Agriculture, Environment and Bioresearch 08, no. 02 (2023): 90–102. http://dx.doi.org/10.35410/ijaeb.2023.5819.

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Heritability of growth traits was studied at 2, 10 and 20 weeks using 531 day-old unsexed crossbred chickens belonging to six genotypes. Heritability estimates were obtained from variance components of sire ( ), dam ( ) and sire plus dam ( ) by analysis of variance in a nested design. The heritability of body weight was high (0.43-0.66) in frizzle feathered x Isa Brown (FxIB), Isa Brown x frizzle feathered (IBxF), Isa Brown x normal feathered (IBxN) and normal feathered x Isa Brown (NxIB) at 10 and 20 weeks, but low to moderate (0.02-0.38) in Isa Brown x naked neck (IBxNa) and naked neck x Isa

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Okon, B., L. A. Ibom, A. Dauda, and M. Udayi. "Phenotypic variations in local chickens: Influence of strain and sex on morphometric traits." Journal of Animal Science and Veterinary Medicine 10, no. 2 (2025): 123–28. https://doi.org/10.31248/jasvm2025.555.

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This study evaluated the influence of strain and sex on the phenotypic traits of local chickens. A total of 150 chickens were used, comprising 50 chickens each from three strains (Frizzle, Naked Neck and Normal-feathered), with an equal distribution of 25 males and 25 females per strain. The phenotypic traits measured included body weight (BW), body length (BL), shank length (SHL), chest circumference (CC), wing span (WS) and drumstick length (DS). The data collected were analysed using the Statistical Analysis System (SAS), and significance was determined at p <0.05. The results revealed s

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Ibrahim, A. A., S. T. Mbap, T. Ibrahim, and Y. P. Mancha. "Variation in helminth susceptibility of indigenous chickens in Kano and Jigawa States of Nigeria." Nigerian Journal of Animal Production 48, no. 5 (2021): 51–68. http://dx.doi.org/10.51791/njap.v48i5.3187.

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This study was carried out to identify the helminth parasites and burden associated with five indigenous chicken strains namely normal feathered Fulani ecotypes, naked neck, dwarf and frizzle kept under free- range system in six local government areas of Kano and Jigawa States. A total of 540 fresh faecal samples were collected from the gastrointestinal tract. Faecal egg count (quantitative examination) was carried out using the modified McMaster technique with flotation solution. All the helminths (cestodes and nematodes) were examined under light microscope and identified on the basis of hel

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Udoh, U. H., B. Okon, and A. P. Udoh. "Egg Quality Characteristics, Phenotypic Correlations and Prediction of Egg Weight in Three (Naked Neck, Frizzled Feather and Normal Feathered) Nigerian Local Chickens." International Journal of Poultry Science 11, no. 11 (2012): 696–99. http://dx.doi.org/10.3923/ijps.2012.696.699.

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Wheto, M., M. A. Adeleke, A. E. Ogundero, et al. "Polymorphism and diversity studies of insulin-like growth factor I gene among indigenous and FUNAAB Alpha chicken breeds in Nigeria." Nigerian Journal of Animal Production 47, no. 1 (2020): 33–40. http://dx.doi.org/10.51791/njap.v47i1.176.

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The Insulin-like growth factor gene (IGF-1) is an important candidate gene responsible for growth, body composition, metabolism, skeletal characteristics and fat deposition in chicken. Little or no work has been done on the sequence analysis of IGF1 gene in FUNAAB Alpha chicken breed. Therefore, this study was designed to examine the polymorphisms and genetic diversities of the IGF-1 gene among Nigerian indigenous and improved indigenous (FUNAAB Alpha) chicken breeds. A total of 120 chickens comprising of 20 each from Frizzle feathered, Normal Feathered, Naked neck, FUNAAB-Alpha 1 (DHR), FUNAA

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Moono, Mayoba Barbara, Wilson N. M. Mwenya, Kolawole Odubote, and Mubanga Mwale. "Characterization of Qualitative and Quantitative Traits of Five Strains of Zambia Indigenous Chicken." University of Zambia Journal of Agricultural and Biomedical Sciences 8, no. 3 (2024): 1–17. https://doi.org/10.53974/unza.jabs.8.3.1341.

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This study assessed the phenotypic characteristics of five indigenous chicken strains from Zambia’s Luapula, Northern, Muchinga, Southern, and Lusaka provinces, providing baseline data for a selective breeding program aimed at improving performance. A total of 100 chickens (74 females and 26 males) were sampled. Qualitative traits were observed, and quantitative traits such as body weight, body length, thigh length and circumference, chest circumference, shank length and circumference, wingspan, and keel length were measured. Males had significantly higher live body weights and measurements th

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Ibe, S. N. "Growth Performance Of Normal, Frizzle And Naked-neck Chickens In A Tropical Environment." Nigerian Journal of Animal Production 20 (January 5, 2021): 25–31. http://dx.doi.org/10.51791/njap.v20i.2098.

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Growth performance of normal-feathered, frizzle and naked neck indigenous chickens of Nigeria during an 18-week growing period was studied. Differences in body weights among the three genotypes (sexes combined) were not significantly different at all ages, although those with normal feathering showed general superiority over the other two genotypes. Male normal-feathered individuals had significantly higher body weights than the females from week 6, whereas differences between male and female naked necks were significantly from the females at all ages. No significant differences were observed

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Wheto, M., O. O. Ismaila, M. A. Adeleke, et al. "Sequence analyses of insulin-like growth factor 1 gene in Nigerian indigenous and arbor acre chickens." Genetika 53, no. 1 (2021): 271–82. http://dx.doi.org/10.2298/gensr2101271w.

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Alpha % Indigenous chicken % Gene % Sequence KR nema The chicken Insulin-like growth factor 1 (IGF1) is a candidate gene for growth, body composition and metabolism, skeletal characteristics and growth of adipose tissue and fat deposition in chickens. It is mapped to 165.95 cM on chromosome 1 and composed of four exons and three introns, spanning more than 50 kb. Genomic DNA was extracted from blood samples collected from the experimental birds using Qiagen DNA extraction kits. Polymersae chain reaction (PCR) was carried out using established primers. The PCR amplicon involving 5?untranslated

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Isaac, U. C., and H. C. Ezejesi. "Genotype impact on body weight and linear body measurements of main and reciprocal crosses of Isa Brown and local chickens." Nigerian Journal of Animal Production 49, no. 3 (2022): 5–14. http://dx.doi.org/10.51791/njap.v49i3.3524.

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The indigenous chickens of Nigeria are known for low productivity due to their unimproved genetic condition. However, the chickens are well adapted to hash environmental conditions and resistant to many endemic diseases. A lot of research works have been carried out with the aim of improving the local chickens, but little or no sustainable results are yet to be achieved. The present study seeks to improve growth traits of frizzle feathered, naked neck and normal feathered chickens through main and reciprocal crossbreeding with exotic Isa Brown chicken. Genotype impact on body weight (BWT), sha

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Fajemilehin, S. O. K. "Frequencies of different phenotypes and body parameters of mature indigenous chicken in deciduous rainforest zone of Nigeria." Nigerian Journal of Animal Production 38, no. 1 (2021): 4–13. http://dx.doi.org/10.51791/njap.v38i1.686.

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The study was conducted using 800 adult local chickens comprising 355 males and 445 females, which were obtained from 2 major markets in Ado Ekiti, the capital city of Ekiti state, Nigeria. Convenience sampling technique was employed in selecting animals for observation. The birds were individually observed for phenotypic expression of shank colour, feather morphology, feather structure, polydactyly, ptylopody and comb types. The number in each group was expressed as a percentage of the total number of birds. The body size parameters measured include body weight, body girth, body length, shank

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Ishara-Nshombo, Elie-Ishnel, Gael Nzuzi-Mavungu, Jean-Christophe Kashala-Kapalwola, and Hortense Kalenga-Kalamo. "Phenotypic and morphobiometric characterization of local chicken (Gallus gallus) in family breeding on the outskirts of Lubumbashi, Democratic Republic of Congo." Letters In Animal Biology 2, no. 2 (2022): 06–16. http://dx.doi.org/10.62310/liab.v2i2.85.

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This study, with a main goal to characterise the local chicken at phenotypic and morphobiometric level, was conducted from September 2019 to January 2020 in three outlying districts of Lubumbashi city in the Democratic Republic of Congo (DRC). A total of 116 adult females and 64 adult males were photographed, described, and measured individually. The main results indicated that the phenotypic traits of the local chicken studied were very heterogeneous. Indeed, four main types of feather distribution were observed – normal feathering (80.56%), crested head (17.22%), naked-neck (1.67%), and feat

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Birteeb, Peter T., and Thomas Boakye. "Variant forms of qualitative traits of indigenous chickens reared under extensive system in Tolon District, Ghana." Animal Production Science 60, no. 5 (2020): 705. http://dx.doi.org/10.1071/an19118.

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Context Rural chicken production in most developing countries is based mainly on scavenging systems with indigenous chickens that have not been properly characterised and classified into well-defined breeds. Aims This study was conducted to identify the variant forms of qualitative phenotypic traits of local chickens in Tolon District, northern Ghana. Methods About 320 adult birds were sampled and data collected by using observation and a chicken colour chart. Traits included head shape; comb type, size and colour; feather distribution; and earlobe, eye, plumage, skin and shank colours. Chi-sq

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Yin, F. Q., C. Chen, J. W. Chen, X. P. He, C. M. Xia, and R. L. Wang. "Determination of non-phytate phosphorus requirement for slow-growing feather-frizzled broilers from 1 to 21 days of age." Animal Feed Science and Technology 291 (September 2022): 115397. http://dx.doi.org/10.1016/j.anifeedsci.2022.115397.

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Egahi, J. O., O. M. Momoh, and F. B. P. Abang. "Heterosis for hatch weight and body weight gain in outcrossed native chickens of Nigeria under savanna conditions." Nigerian Journal of Animal Production 45, no. 2 (2020): 16–20. http://dx.doi.org/10.51791/njap.v45i2.510.

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The normal feathered (NF), frizzle feathered (FF) and naked neck (Na) native chickens of Nigeria were outcrossed under the savanna ecology. Eggs were collected and artificially incubated in electric type incubator. Chicks were weighed at hatch, identified and raised on a standard compounded ration. Body weight increase was evaluated at 4-20 weeks of age. Heterosis was evaluated for hatch weight and body weight at 20 weeks of age. Results revealed that percent heterosis ranged from -12.11to 1.66 and 1.93 to 12.80 for hatch weight and body weight at 20 weeks of age, respectively. The outcrosses

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NWEKE-OKOROCHA, Genevieve Obiageri, Clifford Adinma CHINEKE, and Brilliant Ogagaoghene AGAVIEZOR. "Phenotypic and Genetic Correlations between Body Weight and Linear Body Measurements of Nigerian Local and Improved Chickens." International Journal of Innovative Science and Research Technology 7, no. 2 (2022): 423–26. https://doi.org/10.5281/zenodo.6331291.

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This experiment was carried out with 240 mixed sex of four stains (frizzle feathered, naked neck, normal feathered and Noiler) of chicken to evaluate the phenotypic and genetic correlations between body weight and linear body measurements of Nigerian local and improved chickens raised for sixteen weeks in rivers state, south south region of Nigeria. Body weights and the morphometric traits (Body Length, Drumstick length, Drumstick circumference, Breast Girth, Nose to Shoulder, Shoulder to Tail and Height at withers) were measured per bird on weekly basis. The measured parameters were subjected

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Nawaz, Ali Hassan, Zhenhai Jiao, Li Zhang, et al. "Novel insights into heat tolerance: the impact of dwarf and frizzled feather traits on crossbreed chicken performance under thermal stress." Italian Journal of Animal Science 23, no. 1 (2024): 320–30. http://dx.doi.org/10.1080/1828051x.2024.2314150.

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Liu, Chang, Cornelius Sello, Yongfeng Sun, et al. "De Novo Transcriptome Sequencing Analysis of Goose (Anser anser) Embryonic Skin and the Identification of Genes Related to Feather Follicle Morphogenesis at Three Stages of Development." International Journal of Molecular Sciences 19, no. 10 (2018): 3170. http://dx.doi.org/10.3390/ijms19103170.

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The objective of this study was to evaluate the changes in the goose embryo transcriptome during feather development. RNA-Sequencing (RNA-Seq) was used to find the transcriptome profiles of feather follicles from three stages of embryonic dorsal skin at embryonic day 13, 18, and 28 (E13, E18, E28). The results showed that 3001, 6634, and 13,780 genes were differently expressed in three stages. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that differentially expressed genes (DEGs) in E13 vs. E18 were significantly mapped into the GO term of extracellul

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Bassey, O. A., U. Akpan, C. O. N. Ikeobi, O. A. Adebambo, and O. M. O. Idowu. "Egg production and quality assessment of Nigerian indigenous chicken genotypes and their crosses with Marshall." Nigerian Journal of Animal Production 43, no. 1 (2021): 28–36. http://dx.doi.org/10.51791/njap.v43i1.2740.

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This study focused on investigating the reproductive performance of Nigerian indigenous chickens and their crosses with Marshall. The genotypes were normal-feathered (Nn), frizzle-feathered (Ff) and naked neck (Na) chickens, while the crossbreds with Marshall (M) breed were MNn, Mf and MNa respectively (Marshall being the sire while the indigenous are dams). Data were taken on; weekly egg production, weight at first egg and age at first egg. Genotype significantly (P<0.05) influenced egg production traits. Egg weight ranged from 23.71±21.06g to 26.13±0.94g for indigenous purebreds and 39.75

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Bassey, O. A., U. Akpan, C. O. N. Ikeobi, O. A. Adebambo, and O. M. O. Idowu. "Egg production and quality assessment of Nigerian indigenous chicken genotypes and their crosses with Marshall." Nigerian Journal of Animal Production 43, no. 2 (2021): 28–36. http://dx.doi.org/10.51791/njap.v43i2.1392.

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This study focused on investigating the reproductive performance of Nigerian indigenous chickens and their crosses with Marshall. The genotypes were normal-feathered (Nn), frizzle-feathered (Ff) and naked neck (Na) chickens, while the crossbreds with Marshall (M) breed were MNn, MFf and MNa respectively (Marshall being the sire while the indigenous are dams). Data were taken on; weekly egg production, weight at first egg and age at first egg. Genotype significantly (P<0.05) influenced egg production traits. Egg weight ranged from 23.71±1.06g to 26.13±0.94g for indigenous purebreds and 39.75

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Jesse, Patrick Joseph Nyandebo, Patrick Bagla Victor, Kanu Saidu, Umoh Magdalene, Muana Abigail, and Rahman Sesay Abdul. "Phenotypic Characterization of Indigenous Chickens' Ecotypes in Host Communities of Njala University, Sierra Leone." International Journal of Innovative Science and Research Technology 7, no. 3 (2022): 1197–200. https://doi.org/10.5281/zenodo.6464867.

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Phenotypic characterization of indigenous chicken ecotypes on extensive management system in five communities hosting Njala university was done using multivariate analyses of qualitative morphological/phenotypic traits from July to October 2018. Six distinct ecotypes with their respective proportions were identified (frizzle(11.1%), normal feathered(71.2%), naked neck (7.5%), rumples (4.6%), dwarf (2.9%) and straw featheredplumage (2.7%) with significant differences (P<0.05) among the five villages in terms of morphological appearance. Diverse plumage coloration among indigenous chickens wi

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