Results and disscusion effect of non genetic factors. Br strains also observed the same trend except against kl.
Evaluation Of Two Commercial Broiler Strains Differing In
Linear body measurement and body weight of poultry research. The phenotypic correlation for body weight and linear body measurement was high and positively significant p001 in nb. 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. 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. Use of body linear measurements to estimate liveweight of crossbred dairy cattle in smallholder farms in kenya m. Multiple linear regression was used to estimate bw from body measurements.
Inclusion of three body measurements in an equation resulted in r2 078 and the following equation. 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. 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. Body weight bw and. The effect of various factors viz. The parameters measured were body weight bw body length bl heart girth hg wing length wl shank length sl and shank thickness st.
The aim of this study was to investigat e the relationship betw een linear body measurements and age and body weight in indigenous female chickens of the boschveld breed in namibia. The strong relationship between live body weight and other body measurements could be exploited to increase the economic value of the indigenous chicken. 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. Okeyo2 background liveweight lw forms the basis for a range of research and management activities. The best single measurement was pelvis width with an r2 067. Generally linear or morphometric body measurements could serve as predictors of body weight.
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. 1998 was utilized to predict abw from linear body measurements. Bw g 9300 685 breast cm 485 circumference cm 628 pelvis cm. This study was designed to evaluate the body weight and other linear parameters of marshall broiler for repeatability estimates. Pairwise pearson correlations were estimated using bodyweight bw and morphological trait measurements namely heart girth hg shoulder height sh and.