Linear body measurement traits were assessed from 192 chickens of the four genotypes drawn from 48 households of two agroecologies. Genome wide association study of body weight and feed efficiency traits in a commercial broiler chicken population a re visitation. Multiple linear regression was used to estimate bw from body measurements. The results indicated that the average age at first egg of all exotic chickens was shorter p 005 than that of the local chickens in both agroecologies. For specific information regarding your body fat percentage or health please consult your physician. Linear association between live body weight and some body measurements in some chicken trains 597 fawbro 1608 kg followed by the local black and brown chicken groups with a body weight of 1300 and 1208.
Measurements of quantitative traits a total of 240 indigenous adult female chickens were randomly sampled from each household and was determined by recalling methods of the interviewed farmers. The coefficients of determination r. Statistical modelling of body weight and linear body measurements in nigerian indigenous chicken. ŷ 7606 0152sl 0057bg 0052wl 0026tl 0221bl where ŷ is the estimated body weight. Sampled for body weight and linear body measurement traits with a total number of 240 chickens. Inclusion of three body measurements in an.
Linear software will not be held responsible for any injury or problems resulting from the use of body tracker my workout trainer or this web site. The results indicated that the average age at first egg of all. The best single measurement was pelvis width with an r2 067. Body weight can be predicted from linear measurements breast girth and keel length for crossbred egg type chickens and adeniji and ayorinde 1990 for cobb broiler strain. Multiple linear regression model relating body weight and linear body measurements of nigerian local chickens is shown below. Linear body measurement traits have been indicated as the good predictor of body weight in different chicken genotypes including chinese indigenous dagu chicken genotype tyasi et al 2017.
Linear body measurement traits were assessed from 192 chickens of the four genotypes drawn from 48 households of two agroecologies. In the two commercial broiler strains the relationship between body weight and body girth body weight and keel length and body weight and thigh length were best described by double log. Each whole chicken was ground and a portion of ground material of each was used to measure water fat ash and energy content. Results for body weight traits using mixed linear model.