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- W2365802363 abstract "Studies on the rule of body growth of 0-20-weekold Rugao chicken as well as 12-week-old body measurements traits.The results were as follows: ①the difference of the bodyweight between male and female chicken was significant(P0.01),the coherence of the bodyweight among the male chickens was relatively low;②Gompertz model can excellently described the growth model of chicken bodyweight(R20.996),the growth point of inflection was at 6～7 weeks.The heritability of mature and fastigium bodyweight were 0.09,the heritability of estimate of the weight at birth、the average growth speed,fastigium growth age was 0.21,0.32 and 0.37,respectively;③The estimating results of the variance component and heritability of the bodyweight had significant difference when using whole-sib and half-sib genetic model.The heritability of male chicken bodyweight was significant higher than that of female chicken(both of them had high heritability) when calculated by whole-sib genetic model.Bodyweight heritability descended with the increasing of the age in general,and the maternal effects was smaller when the age increased.The maternal effects on male was larger than female;the male chicken bodyweight heritability calculated by half-sib genetic model were different from that of female chicken: smaller before 7-week-old,equal at 8-9-week-old,larger at 10-12-week-old;④The male body measurements traits were significant larger than female (P0.01) except that the chest angle was not significant.⑤The correlation between 12-week-old chest angle and other body measurements traits was not significant.Most of other measurements had significant correlation(P0.05,P0.01).⑥The heritability of live weight,body length,chest bone length, metatarsus length,metatarsus circumference,coronal length,coronal height, coronal color,metatarsus color,chest angle,chest width was 0.53,0.11,0.64, 0.92,0.42,0.16,0.15,0.52,0.25,0.16 and 0.40 respectively." @default.
- W2365802363 created "2016-06-24" @default.
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- W2365802363 date "2007-01-01" @default.
- W2365802363 modified "2023-09-23" @default.
- W2365802363 title "Research on the Rule of Development and Growth and Body Measurements Traits of Rugao Chicken" @default.
- W2365802363 hasPublicationYear "2007" @default.
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