Comparative Study on Growth Patterns of 25 Commercial Strains of Korean Native Chicken

Manjula, Prabuddha; Park, Hee-Bok; Yoo, Jun-Hyun; Wickramasuriya, Samiru Sudharaka; Seo, Dongwon; Choi, Na Young; Kim, Chong Dae; Kang, Bo; Oh, Kangho; Sohn, Sea Hwan; Heo, Jungseok; Lee, Jun Heon

doi:10.5536/kjps.2016.43.1.1

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…In growth curve studies in native chickens, various models were introduced as the best model to describe the growth curve. The Gompertz model for Nigerian native chickens (Adenaike et al, 2017), slow-growing chickens in China (Zhao et al, 2015), Poland medium-growing chickens (Michalczuk et al, 2016), Logistic model for slow-growing chickens in the organic system (Eleroglu et al, 2014), Von Bertalanffy for Korean native chickens (Manjula et al, 2016), and Lopez for Khazak chickens (Faraji-Arough et al, 2019) was reported. Although, Faraji-Arough et al ( 2019) introduced the Lopez model for Khazak chickens that in contrast with present results.…”

Section: Discussionmentioning

confidence: 99%

WITHDRAWN: Effects of dietary energy and protein levels on growth curve parameters of Khazak native chickens

Faraji-Arough

Ghazaghi

Kasmani

et al. 2021

Preprint

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This study was conducted to evaluate the effect of dietary energy (ME) and protein (CP) on growth parameters and absolute growth rates in the different ages of the Khazak chicks. A total of 360 one-day-old Khazak chicks were obtained from a local hatchery and in a 3×3 factorial experiment with completely randomized design, chicks were randomly allocated to experimental diets including 2,600, 2,800, and 3,000 kcal of ME/kg, and each containing 17, 19, and 21% CP from 7 to 98 days of age. Four growth model (Gompertz, Logistic, Lopez, and Richards) were fitted on weekly body weight data and the best model were selected by the goodness of fit criteria. Growth curve parameters were predicted for all chicks using the best model and other parameters including age (Ti) and weight (Wi) at the inflection point and absolute growth rate (AGR) in different ages were calculated from growth curve parameters. All parameters were analyzed using the general linear model procedure of SAS. Based on goodness of fit criteria, the Richards model had the lowest Akaike’s Information Criteria (AIC), root mean square error (RMSE), and highest adjusted determination coefficient (R2Adj) than other models and was selected as the best model. The effect of ME was significant on the mature index (k), Wi, Ti, and all AGR parameters (P<0.05) while CP levels were significant on final weight (Wf), Wi, and AGR parameters (P<0.05). The chicks fed with a diet containing 2,600 kcal of ME/kg and 17 % CP had the higher k parameter, and lower Wi, Ti, and AGR than those fed with other diets (P<0.05). Considering that the level of 2,800 kcal of ME/kg and 19 % CP had no significant difference with the level of 3,000 kcal of ME/kg and 21 % CP, therefore diet with 2,800 kcal of ME/kg and 19 % CP was suggested as optimum levels for change the growth curve parameter and having best performance for Khazak chickens during 7 to 98 days of old.

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Section: Discussionmentioning

confidence: 99%

WITHDRAWN: Effects of dietary energy and protein levels on growth curve parameters of Khazak native chickens

Faraji-Arough

Ghazaghi

Kasmani

et al. 2021

Preprint

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The Study of Growth and Performance in Local Chicken Breeds and Varieties: A Review of Methods and Scientific Transference

Ariza

Arbulu

González

et al. 2021

Animals

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A review of the scientific advances in the study of the growth and performance in native chicken breeds and varieties over the past 20 years was performed. Understanding the growth patterns of native breeds can only be achieved if the constraints characterizing these populations are considered and treated accordingly. Contextually, the determination of researchers to use the same research methods and study designs applied in international commercial poultry populations conditions the accuracy of the model, variability capturing ability, and the observational or predictive performance when the data of the local population are fitted. Highly skewed sex ratios favouring females, an inappropriate census imbalance compensation and a lack of population structure render models that are regularly deemed effective as invalid to issue solid and sound conclusions. The wider the breed diversity is in a country, the higher the scientific attention paid to these populations. A detailed discussion of the most appropriate models and underlying reasons for their suitability and the reasons preventing the use of others in these populations is provided. Furthermore, the factors conditioning the scientific reception and impact of related publications used to transfer these results to the broad scientific public were evaluated to serve as guidance for the maximization of the success and dissemination of local breed information.

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Development of a New Synthetic Korean Native Chicken Breed using the Diallel Cross-Mating Test

Sohn¹,

Choi²,

Kim³

et al. 2021

Korean J. Poult. Sci.

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We conducted a 4 × 4 diallel cross-mating test using 934 chickens from four grandparent stock lines to develop a new synthetic breed of Korean native chicken. The mean values, combining ability, and reciprocal effects on survival rate, body weight, and hen-day egg production were analyzed. In phenotypes, most chickens have yellowish-brown, reddish-brown and mixed color feathers. The average survival rate was 86.8±12.3%, with the highest in YH combination. Specific combining ability (SCA) had a greater effect on survival rate than general combining ability (GCA), and the SCA of HY combination was the highest. The 16 cross-combinations were distinctly divided into three weight groups according to their genetic characteristics. At 12 weeks of age, GCA showed a greater effect on weight than SCA, and the SCA of FH combination was the highest. The age at first egg laying was 157 days, and the crosses reached sexual maturity faster than the pure lines. The egg production rate was highest in SY at 79.5±2.1%. The GCA and SCA for hen-day egg production were similar, and the SCA was highest in the HS and FY combinations. The reciprocal effect showed that the offspring's egg production rate was high when S and Y were maternal parents in almost all combinations. In conclusion, FH and HF combinations, which have excellent growth performance, are the most desirable paternal parent stock strains, and FY, FS, HY, and SY combinations, which have excellent laying performance with moderate weight, are the preferred maternal strains.

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Comparative Study on Growth Patterns of 25 Commercial Strains of Korean Native Chicken

Cited by 3 publications

References 20 publications

WITHDRAWN: Effects of dietary energy and protein levels on growth curve parameters of Khazak native chickens

WITHDRAWN: Effects of dietary energy and protein levels on growth curve parameters of Khazak native chickens

The Study of Growth and Performance in Local Chicken Breeds and Varieties: A Review of Methods and Scientific Transference

Development of a New Synthetic Korean Native Chicken Breed using the Diallel Cross-Mating Test

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