scholarly journals Breeding for the improvement of indigenous chickens of Bangladesh: evaluation of performance of first generation of indigenous chicken

2017 ◽  
Vol 3 (1) ◽  
pp. 72-79
Author(s):  
Shakila Faruque ◽  
AKFH Bhuiyan ◽  
Md Yousuf Ali ◽  
Ziaul Faruque Joy
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
First Generation ◽  
Growth Traits ◽  
Live Weight ◽  
Breeding Value ◽  
Daily Weight Gain ◽  
Indigenous Chicken ◽  
Evaluation Of Performance ◽  
Foundation Stock

Pure breeding is necessary for the conservation and improvement of indigenous chicken genetic resources. Present research is a part of the long-term selection program being undertaken to evaluate the performance and expected response to selection of first generation (G1) of three indigenous chicken genotypes under intensive management in Bangladesh. A total of 1439-day-old chicks comprising of 3 genotypes namely Naked Neck (NN), Hilly (H) and Non-descript Desi (ND) were hatched for this study. In first generation (G1), selection was practiced on body weight at 8 and 16 weeks of age, on the basis of their breeding value. At 40-week of age, selection will be practiced on the basis of an index comprising the parameters of age at first egg (ASM), body weight (BW), egg production (EP) and egg weight (EW). At 8, 10 and 12 weeks of age, six birds from each genotype were slaughtered to analyze the meat yield traits. Data were analyzed in CRD by General Linear Model Univariate Procedure. Significantly (P<0.001) highest body weight of day-old chicks (28.65±0.12 g) and daily weight gain in all stages were found in H genotype than other two genotypes. Although there was significant (P<0.001) difference in live weight between ages at slaughter, dressing percent (65.87 - 66.89 %) of different ages was similar (P>0.05) but was affected (P<0.001) by genotype. Body weight at 8 weeks of age was expected to improve by 58.98 vs. 11.50; 81.56 vs. 40.91 and 53.81 vs. 15.82 g; respectively for ND, H and NN males and females. In terms of body weight and growth traits H genotype was superior and NN genotype was for dressing percentage. As a result of selection; chick weight, body weight at all stages increased and ASM reduced in first generation than foundation stock. These findings give an impetus for continuing the pure breeding research for more generations.Asian J. Med. Biol. Res. March 2017, 3(1): 72-79

scholarly journals Breeding for the improvement of indigenous chickens of Bangladesh: performance of foundation stock

2017 ◽  
Vol 3 (1) ◽  
pp. 80-87
Author(s):  
Shakila Faruque ◽  
AKFH Bhuiyan ◽  
Md Yousuf Ali ◽  
Ziaul Faruque Joy
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Reproductive Traits ◽  
Shape Index ◽  
Daily Weight Gain ◽  
Stock Selection ◽  
Indigenous Chicken ◽  
Egg Weight ◽  
Dressing Percentage ◽  
Foundation Stock

Selection is one of the vital tools for improving the indigenous chicken genetic resources. A total of 1585-day-old chicks comprising of 3 types of chicken namely Naked Neck (NN), Hilly (H) and Non-descript Deshi (ND) were hatched for this study to form foundation stock. Improvement target of egg weight was to increase by 1g and improvement target of egg production rate was to increase by 2 % per generation. In foundation stock, selection was practiced at 40-week of age, on the basis of an index comprising the parameters of age at first egg (ASM), body weight(BW), egg production(EP) and egg weight(EW). Data were analyzed in CRD by General Linear Model (GLM) Univariate Procedure. Significantly highest fertility (82.71%) and hatchability (82.20%) were found in ND genotype. Significantly (P<0.001) highest body weight of day-old chicks and daily weight gain was found in H genotype than other two genotypes. There was a non-significant (P>0.05) variation in FCR among the native chicken genotypes. NN genotype (3.46%) had non-significantly (?2 = 3.62; P > 0.05) higher chick mortality than ND (1.63%) and H (2.11%) at brooding period (0-4 weeks). Significantly (P<0.01) higher dressing percentage was found in NN (64.58) genotype than ND (60.26) and H (61.70) genotypes. Non-significantly higher egg production in selected group was found in H (70) genotype than ND (68) and NN (67) genotypes. Significantly (P<0.001) highest shape index and Haugh unit were found in H and ND genotypes, respectively. As a result of selection, egg production is expected to improve by 0.562, 0.932 and 0.755%, respectively for ND, H and NN genotypes. In terms of reproductive traits ND was superior, in terms of productive traits H genotype was superior and in terms of dressing percentage and breaking strength NN genotype was superior. These findings of the study also give an impetus for continuing the research for more generations to fulfill the objectives of the long-term programme.Asian J. Med. Biol. Res. March 2017, 3(1): 80-87

scholarly journals Breeding for the improvement of indigenous chickens in Bangladesh: performance of second generation

2017 ◽  
Vol 3 (1) ◽  
pp. 66-71
Author(s):  
Shakila Faruque ◽  
AKFH Bhuiyan ◽  
Md Yousuf Ali ◽  
MSK Sarker ◽  
Ziaul Faruque Joy
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Second Generation ◽  
Breeding Value ◽  
Genotype 3 ◽  
Indigenous Chicken ◽  
Egg Weight ◽  
Slaughter Age ◽  
Dressing Percentage ◽  
Egg Production Rate

The improvement of productivity of indigenous chicken is a long desire in the country. Present research is a part of the long-term selection program being undertaken to evaluate the carcass characteristics and expected response to selection of second generation (G2) of indigenous chicken under intensive management in Bangladesh. A total of 1643-day-old chicks comprising of 3 types of chicken namely Naked Neck (NN), Hilly (H) and Non-descript Desi (ND) were hatched in a two batches for this study. In second generation (G2), selection was practiced at 3 (three) stages of birds life, firstly and secondly at 8 and at 16 weeks of age, selection was performed on the basis of breeding value for 8 and 16 week body weight. Thirdly, at 40-week of age, on the basis of an index comprising the parameters of age at sexual maturity (ASM), body weight (BW), egg production (EP) and egg weight (EW). Improvement target of egg weight was to increase by 1g and improvement target of egg production rate was to increase by 2 % per generation. The main target was the mean body weight in H, ND and NN chicken has to be gone up from the initial eight-week body weight of 375, 342 and 331g to 500 g at eight weeks of age. At 8, 10 and 12 weeks of age, six birds from each genotype were slaughtered to analyze the meat yield traits. Slaughter data were analyzed in a 3(genotype)×3(slaughter age) factorial arrangement in CRD by General Linear Model (GLM) Univariate Procedure in SPSS Computer Program. Genotype and slaughter age had significant effect (p<0.001) on dressing percentage. Body weight at 8 weeks of age was expected to improve by 51.21 vs. 24.03; 37.74 vs. 15.47 and 26.26 vs. 9.65g; respectively for ND, H and NN males and females. In terms of body weight H genotype was superior and NN genotype was for dressing percentage. As a result of selection; EP, BW increased and ASM reduced in second generation than that of the foundation stock.Asian J. Med. Biol. Res. March 2017, 3(1): 66-71

scholarly journals Photoperiod on growth and egg characteristics of the white leghorn chicken

2021 ◽  
Vol 15 (1) ◽  
pp. 151-155
Author(s):  
Abdul Muumin Sadick ◽  
Iddrisu Mubarik ◽  
Dennis Kodzo Awalime ◽  
Rebecca Akumbilim ◽  
Philip Larweh ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Growth Traits ◽  
Growth Parameters ◽  
Skills Training ◽  
Daily Weight Gain ◽  
White Leghorn ◽  
Initial Body Weight ◽  
Final Body Weight

One hundred and twenty (120) 16 weeks old White Leghorn layer breeds were used for the study. The objective of the study was to determine effect of photoperiod on layer chicken. The research was carried out at the Poultry Section of the Animal farm of the Department of Animal Science Education, Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development, Mampong. Four treatments made up of 12 hours of light, 14 hours of light, 16 hours of light and 18 hours of light were used for the study. Each treatment was replicated three times with 10 birds per replicate in a Completely Randomized Design. Birds were exposed equally to common daylight and in the evenings, lights were turned on at specified periods. Growth parameters measured were initial body weight, daily feed intake, daily weight gain and final body weight. Egg traits measured were egg weight, albumen height, yolk color and yolk weight. The data collected were analyzed using General Linear Model procedure of Statistical Analysis System. Results from the study indicated that, varied photoperiod regimes had no significant (P>0.05) effect on initial body weight, daily feed intake but had significant (P<0.05) effect on daily weight gain and final body weight of growth traits. Photoperiod had no significant (P>0.05) effect on the egg characteristics of the white Leghorn layer bird. It was concluded from the study that, increasing photoperiod had no positive effect on growth and egg characteristics of the white Leghorn layer.

scholarly journals Genetic-Quantitative Uni- and Bi-Trait Analysis for Growth Traits in the Colombian Creole Breed Blanco Orejinegro (BON)

2021 ◽  
Author(s):  
Marisol Londoño-Gil ◽  
Juan Carlos Rincón Flórez ◽  
Albeiro López-Herrera ◽  
Luis Gabriel Gonzalez-Herrera
Keyword(s):  
Growth Traits ◽  
Genetic Correlations ◽  
Genetic Effect ◽  
Cattle Breed ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Additive Genetic Effect ◽  
Selection Processes ◽  
Heritability Estimates ◽  
Maternal Heritability

Abstract The Blanco Orejinegro (BON) is a Colombian creole cattle breed that is not genetically well characterized for growth traits. The aim of this work was to estimate genetic parameters for birth weight (BW), weaning weight (WW), yearling weight (YW), daily weight gain between birth and weaning (DWG), time to reach 120 kg of live weight (T120), and time to reach 60% of adult weight (T60%), and establish the selection criteria for growth traits in the BON population of Colombia. Genealogical and phenotypic information for BW, WW, YW, DWG, T120, and T60% traits of BON animals from 14 Colombian herds were used. These traits were analyzed with the AIREML method in a uni- and bi-trait animal model including the maternal effect for BW, WW, DWG, and T120. The direct heritability estimates values were 0.22 ± 0.059 (BW), 0.20 ± 0.057 (WW), 0.20 ± 0.153 (YW), 0.17 ± 0.07 (DWG), 0.26 (T120), and 0.44 ± 0.03 (T60%). The maternal heritability estimates values were 0.14 ± 0.040 (BW), 0.15 ± 0.039 (WW), 0.25 ± 0.06 (DWG), and 0.16 (T120). The direct genetic correlations were high (>|0.60|) among all the traits, except between T60% with BW, WW, YW, and DWG (ranged from -0.02 to -0.51), all in a favorable direction. The results showed that there is genetic variation in the growth traits associated with the additive genetic effect and they might respond to selection processes. Furthermore, genetic gains would improve through selection, especially for YW and T60% when WW is used as criterion.

scholarly journals Growth performance of local and genetically improved chicken of Bangladesh

2018 ◽  
Vol 47 (2) ◽  
pp. 76-84
Author(s):  
A Akhter ◽  
SC Das ◽  
MS Hasan ◽  
T Akter ◽  
M Sultana ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Growth Parameters ◽  
Live Weight ◽  
Feed Consumption ◽  
Breast Meat ◽  
Indigenous Chicken ◽  
Free Range ◽  
Growing Period ◽  
Genetically Improved

The experiment was conducted to compare the growth performance among four genotypes of indigenous chicken namely Non-descriptive Native (ND), genetically Improved Native (IN), Hilly (HC) and Naked Neck (NN) of Bangladesh under free-range rearing system.  A total of 288 day old chicks (DOC) from four genotypes were divided into four treatments having eight replications of each for a period of 12 weeks under free-range system with supplementation of commercial broiler diet. During first 4 weeks, all chicks were kept together, whereas chicks of ND was brooded in the same room but separated by a partition. At 5 weeks of age chicks were randomly distributed to the selected farmers. Growth parameters were recorded to determine the comparative growth performance among four genotypes of chicken. The highest body weight (1110.76 g/bird) was achieved by HC, followed by IN (900.63 g/bird) and NN (831.13 g/bird) at 12 weeks of age. The lowest body weight (734.13 g/bird) however was found in ND chicken. During the growing period under free range rearing (5-12 weeks), HC group consumed the highest amount of feed (2697.02 g/bird) with an average FCR of 3.06 while the lowest feed consumption (2666.13 g/bird) with the highest FCR of 4.90 was observed in ND. IN consumed (2674.63 g/bird) feed with an average FCR of 3.92 and BLRI improved NN consumed (2668.13 g/bird) feed with an average FCR of 4.19. Live weight gains in all the four genotypes of indigenous chicken were changed almost in a similar pattern. Significant differences were observed in live weight, dressing percentage, breast meat, drumstick, thigh meat among the four genotypes of chicken. The HC was superior to other genotypes of indigenous chicken including ND in terms of growth performance, meat yield characteristics and net returns. Bang. J. Anim. Sci. 2018. 47 (2):76-84

scholarly journals Estimation of genetic parameters for growth related traits at different stages of development in Paralichthys olivaceus (Temminck & Schlegel, 1846)

2016 ◽  
Vol 63 (3) ◽  
Author(s):  
F. Liu ◽  
S. L. Chen ◽  
L. Wang ◽  
Y. P. Zhang ◽  
Y. S. Tian ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Stage ◽  
Genetic Parameters ◽  
Developmental Stages ◽  
Growth Traits ◽  
Paralichthys Olivaceus ◽  
Correlation Coefficients ◽  
Breeding Value ◽  
Estimated Breeding Value ◽  
Estimation Of Genetic Parameters

Genetic parameters of growth traits at different growing stages of Paralichthys olivaceus (Temminck and Schlegel, 1846) were estimated using 30 families. The estimates of heritability for body weight at four developmental stages viz., 210, 450, 720 and 830 days of age, varied from 0.12 to 0.37. The heritability at 720 days of age was the lowest and that of 450 days was the highest. The maternal effect was 0.08 at 210 days, 0.03 at 450 days and almost zero (8.89 E-8 and 2.40 E-7) at 720 and 830 days. Correlation coefficients of the estimated breeding value (EBV) and phenotypic value (PV) of body weight at different developmental stages were 0.470-0.803, which were highly significant (p<0.01). Correlation of estimated breeding value (EBV) and phenotypic value (PV) was the highest at 210 days of age and the lowest at 720 days. Genetic correlation among the four stages showed large variation (0.339-0.811), which were highly significant except that of 210 and 830 days. The value and accuracy of estimating genetic parameters for growth traits at different stages was different. Therefore, the growth stage should be taken into account when designing a breeding program for growth traits in P. olivaceus.

scholarly journals SELECTION RESPONSE FOR HIGHER BODY WEIGHT IN NIGERIA'S INDIGENOUS CROSSBRED PIGS

2021 ◽  
Vol 22 (1) ◽  
pp. 21-27
Author(s):  
O. A. ADEBAMBO
Keyword(s):  
Body Weight ◽  
First Generation ◽  
Selection Response ◽  
Average Weight ◽  
White Line ◽  
Black And White ◽  
The Third ◽  
High Heritability ◽  
Foundation Stock ◽  
Crossbred Pigs

Six generations of population selection from 2 lines of improved indigenous pigs *NIGER HUBS" comprising pigs born from the year 1984 - 1990 were evaluated. Continued selection for higher body size resulted in observed increases in 150 day body weight of 26% in the white line A and 41% in the black and white line B from the average weight of the foundation stock and 76 to 84 per cent at 12 month of age for these lines of pius respectively. Moderately high heritability estimates of 0.36 to 0.69 were reported for both lines for the 150 day weight and 0.58 to 0.76 for the yearling weight. Response to selection was highest in the first generation of the Bline and the third generation of the A line. Overall response value of 5.79±1.28kg during the first generation declined to 5.01kg±1.08 during the second generation although this subsequently increased from the third to fifth generations. With the plateau not reached within this 6 generation of selection, further response may still be expected in these lines of pigs

scholarly journals On-farm evaluation of growth and reproductive performances of Washera and Gumuz sheep in northwestern Ethiopia: Basics for setting up breeding objectives/goals

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254924
Author(s):  
Sisay Asmare ◽  
Kefyalew Alemayehu ◽  
Solomon Abegaz ◽  
Aynalem Haile
Keyword(s):  
Weight Gain ◽  
Reproductive Performance ◽  
Interaction Effect ◽  
Growth Traits ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Breed Type ◽  
Breeding Objectives ◽  
Performance Traits

Growth and reproductive performance traits are traits of economic importance for sheep selection and productivity improvement interventions. This study aimed at comparative evaluation of growth and reproductive performance traits of sheep in the highland and lowland agro-ecologies of northwestern Ethiopia. Data on growth performance traits were collected from 144 Washera (78 males and 66 females) lambs and 72 Gumuz (37 males and 35 females) lambs. Data on reproductive performance traits were collected from 260 Washera (130 rams and 130 ewes) sheep and 150 Gumuz (75 rams and 75 ewes) sheep. General linear model univariate procedure was employed to analyze the collected data. Breed, the interaction effect between breed and season of birth as well as the interaction effect between breed and type of birth all exerted very high significant effect (P<0.001) on live weight at all age groups. Breed type affected pre-weaning average daily weight gain significantly (P<0.01). Pre-weaning average daily weight gain of Washera (70 g/day) was found much better performance than 60 g/day of Gumuz. Breed type exerts significant (P<0.05) effect on age at first lambing, lambing interval, annual reproductive rate and number of lambs born per ewe life time. Average age at first lambing and lambing interval of Washera sheep were 11.69 months and 9.27 months, respectively. The corresponding values for Gumuz sheep were 12.51 months and 10.43 months, respectively. Production and reproduction performance values of traits varied across the two breeds and sexes as well. These values can be used to set up breeding objectives or goals for selective breeding of sheep giving special emphasis to growth traits believed to have medium heritability values.

scholarly journals Body weight and morphometric traits of fulani ecotype chickens in South Western Nigeria are closely related

2020 ◽  
Vol 44 (5) ◽  
pp. 19-23
Author(s):  
O. J. Ogunshola ◽  
S. A. Daramola ◽  
O. B. Omotoso ◽  
O. I. Baki ◽  
C. A. Chineke
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Goodness Of Fit ◽  
Live Weight ◽  
The Body ◽  
Quadratic Model ◽  
Body Parts ◽  
Morphometric Traits ◽  
Body Weights ◽  
Accuracy Of Prediction

The native chickens constitute about 80 percent of the 120 million poultry birds found in Nigeriabut have not been adequately characterized. Thus, the study was undertaken to establish the relationship among body weight and morphometric traits of thirty six Fulani Ecotype chickens raised for 25 weeks. Body weights were collected per bird and the morphometric traits (body length, drumstick length, drumstick circumference, breast girth, nose to shoulder, shoulder to tail and height at withers) were measured with tape rule on weekly basis. The measured parameters were subjected to correlation and regression analyses. Analysis showed that positive and high significant correlation existed between body weight and morphometric traits (p< 0.01). The result showed that accuracy of prediction was attained with linear and quadratic models but quadratic model had theoretical advantage over the linearmodelwith respect to its goodness of fit to the data. This means that an increase in growth rate of the body parts would correspondingly cause an increase in live weight gain of the bird. In conclusion, body weight and morphometric traits could be used to separate males and females Fulani Ecotype chicken at 17 weeks old. At this age, males appeared bigger than the females and their combs were well pronounced, this would help both sexes to grow uniformly, prevent indiscriminate mating before attaining the age of sexual maturity and help in selection of Fulani Ecotype chicken for improvement in meat and egg production.

Effect of pre and post-natal nutrition on the performances of ewes and lambs under semi intensive rearing system

2020 ◽  
Vol 26 (1-2) ◽  
pp. 43-50
Author(s):  
S Ahmed ◽  
MRH Rakib ◽  
M Yesmin ◽  
M Ershaduzamman
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Milk Yield ◽  
Post Partum ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Weaning Weight ◽  
Concentrate Mixture ◽  
Daily Milk Yield ◽  
Daily Milk

The study was conducted to know the effect of different levels of pre and post-natal nutrition on the performances of ewes and their lambs until 1 year of age and the profitable slaughter age of lambs under semi intensive system. Twenty eight (28) native Bengal ewes at 7 weeks of gestation were randomly assigned to four groups (T0, T1, T2, T3) and supplemented with a concentrate mixture at 0.0, 1.0, 1.5, 2.0% of their body weight respectively. Ewes were allowed to graze 8 hours daily. Creep mixture (20 g/lamb/day) was provided to lambs from 2 weeks age with an increment of 10 g/lamb/week. After weaning, 20 growing male lambs were selected and reared 01 year of age with concentrate mixture at 1.5% of their body weight and 8 hours grazing irrespective of treatment groups. Parameters like, ewe’s litter size, daily milk yield, post-partum heat and lamb’s birth weight, weaning weight, live weight at 06, 09 and 12 months were recorded. The data were analyzed in an ANOVA with CRD by using SPSS v. 20. The mean differences were tested by DMRT at a probability level of P<0.05. After weaning, the lamb growths were analyzed considering age as fixed factor. Regression correlations among different parameters with different ages were also performed. Significantly higher daily milk yield (P<0.01), weaning weight (P<0.05) and daily weight gain of lamb until weaning (P<0.05) were observed in T2 group. Besides, lambs weight at 06, 09, and 12 months differ significantly (P<0.01) along with corresponding daily weight gain (P<0.05). Lambs daily weight gain did not differ significantly from weaning to 09 months of age but significantly reduced (P<0.05) from 09 to 12months age. Finally, it may be concluded that a concentrate diet containing 20% CP during late pregnancy to lactation should be supplied to obtain maximum performances of ewes and their lambs. Besides, native Bengal lamb would be slaughtered between 06 to 09 months of age to get maximum return. Bang. J. Livs. Res. Vol. 26 (1&2), 2019: P. 43-50

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