Determination of body weight age relationship by non linear models in japanese quail article pdf available in journal of animal and veterinary advances 113314 317 march 2012 with 46 reads. The parameters measured were body weight bw body length bl heart girth hg wing length wl shank length sl and shank thickness st.
Growth Curve Analysis Using Nonlinear Mixed Model In
Linear body measurement and body weight of poultry quial. Generally linear or morphometric body measurements could serve as predictors of body weight. Therefore their variability in poultry arises due to genotypic and environmental effects and the. Period of birth sex dams age and weight at lambing on linear body measurements and adult body weight was studied to standardize the data for estimation of genetic parameters. Multiple linear regression was used to estimate bw from body measurements. Asset series a 82. Estimation of body weight using multiple regression functions bw 187 0408bh 0172bl 0274cc 0178tc has an accuracy higher than the estimated body weight using the schoorl formula.
Between body weight and linear traits are presented in table 2 with respect to sex. The best single measurement was pelvis width with an r2 067. All variables of linear measurements of the body have a strong relationship with body weight the strongest relationship is body weight with chest circumference and tail circumference. The data obtained were subjected to analysis of variance and simple linear regression analysis using the restricted maximum likelihood reml procedure of spss statistical software. Inclusion of three body measurements in an equation resulted in r2 078 and the following equation. Results and disscusion effect of non genetic factors.
206 212 ojo v fayeye t. Bw g 9300 685 breast cm 485 circumference cm 628 pelvis cm. Similar result was observed in females except for body weight and fore leg length which negatively. Pair wise correlation between body weight and the linear body measurements were positive and highly significant r 0166 0697 in males and 0411 0714 in females. Between body weight and linear measurements and to predict body weight from linear measurements of body length bl body girth bg wing length wl shank length sl shank diameter sd and drum stick dsthe results showed that the mean quail birds body weights thwere 3523g and 14378g at 2nd and 8 weeks respectively. Body weight correlated positively with all the linear body measurements and significantly p 005 in male guinea pigs.
1998 was utilized to predict abw from linear body measurements. Linear body measurements of shank length breast girth body length and wing length as well as body weight of each quail chick were measured on weekly basis until maturity at six weeks. Relationship between body weight and linear body measurements in japanese quail cortunix cortunix japonicaproceedings genetics. The effect of various factors viz. Linear body measurements as predictors of body weight in nigerian local chickens.
Gallery of Linear Body Measurement And Body Weight Of Poultry Quial
