Leptin gene polymorphism in Boerawa and Peranakan Ettawa (PE) goats from South Sulawesi region

Boerawa and Peranakan Etawa (PE) goats are potential genetic resources to be developed and utilized as meat production. A crossbreeding between local female PE goat with male Boar goat [1] because has become the main component in many goat improvement programs [2] are a reasonable approach for targeting better performance and meat quality production [1]. A crossbreed goat between Boer and PE goats namely Boerawa which has advantages such as high growth of 0.17 kg / day and good adaptability [3]. PE goat is one of the producers of animal protein whose maintenance can be directed at increasing milk production because it can produce milk as much as 1.5 3 liters every day [4]. Utilization of the genetic potential of local goats is one of the programs carried out by the Soppeng District Agricultural Service to improve the genetic quality of goats, especially the goats from the crossing of the Boer goat and the PE called Boerawa goats. It is known that Boer goats have rapid growth and PE goats that have a high level of adaptation and high milk production. Genetic diversity information in particular of genes that control economical properties on the goat are needed to improve of the genetic quality and development of local goat [5]. The productivity of Boerawa and PE goats can be increased through efforts to improve genetic quality through growth. Growth is a trait that is controlled by many genes. One of the genes that influence the growth of goats is leptin. The leptin gene functions to produce the hormone leptin synthesized from adipose tissue (fat) which then plays an important role in controlling body weight, feed consumption and energy balance [6]. Polymorphism in exon 3 intron 2 leptin genes was reported to occur in Nilagiri sheep [7] and Malpura sheep [8]. In addition, the leptin gene polymorphism is also associated with the nature of production in sheep [9] and is significant with the nature of growth in Kermani sheep [10]. The purpose of this study was to identify the diversity of the leptin gene in Boerawa goats and PE and is expected to be an information material in the genetic quality of Boerawa and PE goats.