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Phenotypic Performance of Kambro Crossbreeds of Female Broiler Cobb 500 and Male Pelung Blirik Hitam

This research was conducted to measure the phenotypic performance of Kambro crossbreeds of Pelung Blirik Hitam and Broiler Cobb 500. Based on Body Weight (BT) measurement, Kambro population (n = 17) has an average BT of 1,244.14(..)453.82 grams significant (p <0.01) to F1 Pelung (n = 7) with an average BT of 602.88(..)79.93 grams in 8 weeks period with ad libitum diet of standard feed. Phenotypic performance of Kambro significant to F1 Pelung based on the measurement of linear bodyweight parameter, vitality parameter, PPa-PBe parameter, and phenotype parameter. Kambro has the phenotype combination of parental generation based on the phenotype parameter. PPa parameter was suitable BT estimation model based on non-linear quadratic regression (r = 0.956) with formula 1.84E3(..)3.54E2*x+31.73*x2. Difference between chicken group (p<0.014) was significant to BT and interaction between the group and linear bodyweight parameter was not significant based on Analysis of Covariance. The mortality rate of Kambro was lower than F1 Pelung with the absent of vaccination in a semi-intensive rearing system. As the size of the hybrids population was limited, research findings must be validated with a larger population size of hybrids.

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