Abstract
The purpose of this research was to evaluate the body weight based on feather color and shank color in one-day-old (DOC) crossbred of Bangkok and Lohmann laying hens. The research material used was 373 Crossbred Day-Old Chick (DOC). The variables measured were body weight as quantitative traits, therefore feather and shank color as qualitative traits. The results showed that the feather color of Crossbred chicken varied, namely brown, grey, white, yellow, and black, with a percentage of 17.69%, 1.87%, 6.87%, 42.62%, and 30.83%, respectively. The shank colors were yellow and black, with a rate of 67.56% and 32.42%, respectively. The mean body weight for brown, grey, white, yellow, and black feather color was 40.12 ± 4.38 g; 42.43 ± 2.76 g; 40.65 ± 3.03 g; 39.82 ± 3.38 g; and 39.61 ± 3.67 g, respectively. The analysis showed that body weight was not different between feather colors. The highest percentage of color for feather and shank was yellow. The quantitative traits measured in crossbred DOC of Bangkok and Lohmann were above the DOC national standard. The results showed that the dominant qualitative trait in Crossbred chicken for feather color was yellow at 42.62%, shank color was yellow at 67.56%.
Highlights
Bangkok chicken is the local chicken family because it has long adapted to the environment in Indonesia and is cultivated by the Indonesian people
Feather color and shank color are used as trademarks that can be used to increase consumer preferences for crossbred chickens
The results of this study are expected to provide information regarding the optimal standard of crossed Day-Old Chick (DOC) chickens in terms of feather color, shank color, and body weight
Summary
Bangkok chicken is the local chicken family because it has long adapted to the environment in Indonesia and is cultivated by the Indonesian people. Crossed chicken is a local Indonesian chicken from a cross between a Bangkok male and a laying Lohmann hen. Feather color and shank color are used as trademarks that can be used to increase consumer preferences for crossbred chickens. Quantitative properties, including body weight, chest circumference, and DOC shank length, are measures of crossbreeding chicken productivity. One primary research to explore genetic information is a phenotypic observation by observing feather color and measuring body weight, chest circumference, and shank length. This study aims to determine the quantitative (bodyweight) and qualitative (feather color and shank color) characteristics of day-old crossbreed. The results of this study are expected to provide information regarding the optimal standard of crossed DOC chickens in terms of feather color, shank color, and body weight
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