Body weight bw and. Determination of live body weights of chickens using the heart girth could earn farmers between 06 and 065 more while buyers will save between 01 and 02per kilogram body weight of chicken thus should be encouraged.
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Linear body measurement and body weight of poultry reserch. The parameters measured were body weight bw body length bl heart girth hg wing length wl shank length sl and shank thickness st. 1998 was utilized to predict abw from linear body measurements. 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. The strong relationship between live body weight and other body measurements could be exploited to increase the economic value of the indigenous chicken. 2000 and dairy cows heinrichs et al. Therefore their variability in poultry arises due to genotypic and environmental effects and the.
The objective of this study was to determine the practicality of using linear body measurement traits to predict live weight of goats and sheep under communal grazing in three districts of botswana namely central kweneng and kgalagadi. This study was designed to evaluate the body weight and other linear parameters of marshall broiler for repeatability estimates. The best single measurement was pelvis width with an r2 067. Body linear meas urements were also found to be useful in predicting weight of exotic beef cattle ozkaya and bozkurt 2009. Inclusion of three body measurements in an equation resulted in r2 078 and the following equation. Br strains also observed the same trend except against kl.
2006 used body linear measurements to. The effect of various factors viz. The phenotypic correlation estimates for body weight and linear body measurement at 12 16 and 20 weeks of age for the strains are shown in table 7. Pairwise pearson correlations were estimated using bodyweight bw and morphological trait measurements namely heart girth hg shoulder height sh and. Relationship of age and live weight to linear body traits in female intensively reared boschveld chicken in namibia article pdf available in international journal of poultry science 18101 9. Bw g 9300 685 breast cm 485 circumference cm 628 pelvis cm.
In kenya mwacharo et al. Results and disscusion effect of non genetic factors. Generally linear or morphometric body measurements could serve as predictors of body weight. Multiple linear regression was used to estimate bw from body measurements. 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. A total of one hundred 100 broiler chickens marshall was used in estimating the repeatability of body weight and linear parameters of day old from 2 to 8 weeks of age.
Van marle köster et al. The phenotypic correlation for body weight and linear body measurement was high and positively significant p001 in nb.
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