This study aims to estimate the response of the number of eggs produced up to 240 days of age (EN240) to the selection of Papua local chickens (PLC) with different genotypes from the 24-bp Indel cPRLp locus. A total of 68 PLCs were taken randomly from several breeders in Manokwari as the basic population for selection (G0). Genotype identification of the 24-bp Indel cPRLp locus was performed G0. Based on the distribution of these genotypes, mating pairs were randomly formed G0-II, G0-DD and G0-ID to produce G1-II, G1-DD, and G1-Control (G0-ID offspring). Heritability of EN240 in G1-II and G1-DD populations were estimated in full-sib (single pairs mating). Individual selection based on breeding value EN240 was carried out on G1-II (♀) and G1-DD (♀) to form the selection generation (GS): GS-II (♀) and GS-DD (♀). Selection was also carried out on G1-II (♂) and G1-DD (♂) based on body weight at 240 days (BW240) to become selected GS-II (♀) and GS-DD (♀) mating partners. GS-Control was also formed through 25% random sampling from G1-Control (♂ and ♀). GS mating resulted in the second generation (G2): G2-II, G2-DD, and G2-Control. Age at first laying (AFL), EN240, and mean egg weight (EWA) in hens of G1, GS, and G2 were recorded. Response to selection for EN240 was calculated by two methods predicted selection response (Rp) and actual selection response (Rr). Both methods of calculation yield positive and high values. In actual response (Rr), PLC in II genotypes group are more responsive to the selection treatment than DD genotype group. Selection increase EN240 impact accelerate of AFL and lower the EWA, because of their negative genetic correlation.
Submission of a manuscript implies that the work described has not been published before or is under consideration for publication elsewhere (except in the form of an abstract). When the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher.
Au WL and FC Leung. 2000. Genomic sequence of chicken prolactin gene. Departement of Zoology, The University of Hongkong, Pokfulam Road, Hongkong, SAR, China. www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?db-Nucleotide &dopt-GenBank (20 Februari 2014).
Bagheri SAS, A Niazi, MJ Zamiri and MD Taromsari. 2013. Polymorphisms of prolactin gene in a native chicken population and its association with egg production. Iranian Journal of Veterinary Research. 14 (2): 113-119.
Begli HE, S Zerehdaran, S Hassani, MA Abbasi and AK Ahmadi. 2010. Polymorphism in prolactin and PEPCK-C genes and its association with economic traits in native fowl of Yazd province. Iranian Journal of Biotechnology. 8:172-177.
Creswell DC dan B Gunawan. 1982. Ayam-ayam lokal di Indonesia: Sifat-sifat produksi pada lingkungan yang baik. Laporan No. 2. Balai Penelitian Ternak, Bogor, Indonesia. Pp 9-14.
Cui JX, HL Du, Y Liang, XM Deng, N Li and XQ Zhang. 2006. Association of polymorphism in the promoter region of chicken prolactin with egg production. Poultry Science. 85:26-31.
Francesch A, J Estany, L Alfonso and M Iglesias. 1997. Genetic parameters for egg number, egg weight, and egg shell color in three Catalan poultry breeds. Poultry Science. 76:1627-1631.
Hardjosubroto W. 1994. Aplikasi Pemuliabiakan Ternak di Lapangan. GramediaWidiasarana Indonesia, Jakarta.
Hidayat C, S Iskandar dan T. Sartika. 2011. Respon kinerja perteluran ayam Kampung Unggul Balitnak (KUB) terhadap perlakuan protein ransum pada masa pertumbuhan. Jurnal Ilmu Ternak dan Veteriner (JITV). 16:83-89.
Hu YH, JP Poivey, R Rouvier, SC Liu and C Tai. 2004. Heritabilities and genetic correlations of laying performance in Muscovy ducks selected in Taiwan. Journal British Poultry Science. 45(2):180-185.
Iskandar S and T Sartika. 2014. KUB chicken: The first Indonesian Kampung chicken selected for egg production. Proceedings of the 16th AAAP Animal Science Congress Vol II. , Yogyakarta (Indonesia): Gadjah Mada University:157-160.
Jiang RS, GY Xu, XQ Zhang and N Yang. 2005. Association of polymorphism for prolactin and prolactin receptor genes with broody traits in chickens. Poultry Science. 84:839-845.
Miao Y, DW Burt, IR Paton, PJ Sharp and IC Dunn. 1999. Mapping of the prolactin gene to chicken chromosome 2. Anim Genet. 30:473.
Mu’in MA and S Lumatauw. 2018. Potency of Papua local chickens as egg producers: a molecular review. 1st International Conference of Animal Science and Technology (ICAST) 2018. IOP Conf. Series: Earth and Environmental Science 247 (2019) 012032.
Rashidi H, G Rahimi-Mianji, A Farhadi and M Gholizadeh. 2012. Association of prolactin and prolactin receptor gene polymorphism with economic traits in breeder hens of indigenous chickens of Mazandaran province. Iranian Journal of Biotechnology. 10: 129-135.
Reddy IJ, CG David, PV Sarma and K Singh. 2002. The possible role of prolactin in laying performance and steroid hormone secretion in domestic hen (Gallus domesticus). Gen. Comp. Endocrinol. 127:249-255.
Romjali E, Subiharta, H Hasinah, FA Pamungkas dan R Matondang. 2019. Kinerja produksi dan reproduksi ayam KUB di peternak pembibit. Prosiding Seminar Nasional Teknologi Peternakan dan Veteriner 2019: 717-721.
Sartika T. 2005. Peningkatan Mutu Bibit Ayam Kampung Melalui Seleksi dan Pengkajian Penggunaan Penanda Genetik Promotor Prolaktin dalam MAS (Marker Assisted Selection) untuk Mempercepat Proses Seleksi. Disertasi Sekolah Pasca Sarjana Institut Pertanian Bogor, Bogor.
Sharp PJ, MC Mac Namee, RT Talbot, RJ Sterling and TR Hall. 1984. Aspects of the neuroendocrine control of ovulation and broodiness in the domestic hen. J. Exp. Zool. 232:475-483.
Smith RG and EW Brascamp. 1990. Genetic impact by advanced breeding technologies and gene transfer. In: Biotechnology for Control of Growth and Product Quality in Meat Production:
Implications and Acceptability. Proceedings of an International Symposium, Washington, D.C. (5-7 Dec. 1990).
Sockman KW, H Schwabl and PJ Sharp. 2000. The role of prolactin in the regulation of clutch size and onset of incubation behaviour in the American kestrel. Horm. Behav. 38:168-176.
Tri-Yuwanta, Nasroedin, Wihandoyo, Zuprizal and A Wibowo. 2002. The Role of Native Chicken in Indonesia Rural. Proceeding the 3rd ISTAP, Faculty of Animal Science, Gadjah Mada University, Yogyakarta.