Identification of MspI Polymorphism in the Forth Intron of Chicken Growth Hormone Gene and Their Associations with Growth Traits in Indonesia Native Chickens

. The objective of this research was to identify MspI polymorphism in the forth intron of chicken growth hormone (cGH) gene and their associations with growth traits in native Indonesian chickens. A total of 72 Indonesia native chickens were genotyped for a locus in the forth intron of cGH gene (cGH-I4/MspI locus) by PCR-RFLP with MspI restriction enzyme. The result showed two genotypes in this locus: AA and BB, with the frequency of 90.28% and 9.72%, respectively. Based on body weight average, B allele had a beneficial effect in increasing the live body weight. The result of General Linier Models analysis indicated that the polymorphism of this locus had significant association (P