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Association of Liver X Receptor Alpha (LXRα) gene related to characteristic of carcass, meat quality and fatty acid composition in ducks Gunawan, A.; Azmi, N.; Anggraeni, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 46, No 2 (2021): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.46.2.114-123

Abstract

Liver X Receptor Alpha (LXRα) is a nuclear receptor that play a crucial role in regulating of gene involvedin lipid metabolism. The aim of this research was to identify polymorphisms and association of LXRα gene with charateristic of carcass, meat quality and fatty acid composition in ducks using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP). A total sample of 98 Cihateup ducks consisted of 57 females and 41 males with age 12 weeks were used in this study. Product size is 661 bp amplicons. The genotype genes frequencies in CC, GC and GG were 0.21, 0.55 and 0.23 respectively. The chi-square test revealed that LXRα gene (g.3575 C>G) in exon 2 was in Hardy-Weinberg equilibrium. A SNP of LXRα gene in region g.3575 C>G was significantly associated (P<0.05) with duck meat quality and fatty acid content. Several parameters have significant affect (P <0. 05) on meat quality in the breast meat weight, carcass percentage and head percentage, while associated fatty acids were saturated fatty acids (SFA) such as palimitic acid (C16:0); γ-and unsaturated fatty acids (UFA) such as linolenic acid (C18:3n3); cis 11 eicosenoic acid (C20:1) and 11.14 cis-eicosedenoic acid (C20:2). In could be concluded that LXRα gene might be useful as genetic markers to select and produce meat with desirable unsaturated fatty acids.
Struktur komunitas biologi di Danau Pondok Lapan, Kabupaten Langkat Provinsi Sumatera Utara Muhtadi, Ahmad; Yunasfi, Yunasfi; Rais, F. F.; Azmi, N.; Ariska, D.
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 2: No. 2 (October, 2015)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v2i2.339

Abstract

Danau Pondok Lapan (DPL) adalah sebuah danau buatan yang terdapat di Kabupaten Langkat. Danau ini berfungsi sebagai sumber air, irigasi, resapan air tanah bagi masyarakat sekitar, pengendali banjir, dan kegiatan pemancingan ikan. Sampai saat ini data-data tentang danau tersebut sangatlah terbatas. Data-data terkait sumberdaya yang terdapat di danau sangat diperlukan untuk pengelolaan yang lebih tepat. Diantara beberapa data yang dimaksud adalah organisme penyusun danau. Penelitian ini bertujuan untuk mempelajari kondisi biologis DPL dengan melihat keragaman jenis dan struktur komunitas nekton, benthos dan plankton di perairan. Pengambilan sampel dilakukan pada bulan Februari - April 2015. Hasil pencacahan plankton di DPL ditemukan 52 jenis dari 10 kelas. Ada 6 kelas dari kelompok pitoplankton dan 4 kelas dari kelompok zooplankton. Jumlah genus paling banyak ditemukan jenis fitoplankton dan zooplankton masing-masing dari kelas Chlorophyceae berjumlah 18 genus dan dari kelas Cladocera sebesar 5 genus. Nekton yang ditemukan terdapat 2 kelas yaitu Actinopterygii dan Malacostrata.Terdapat 5 Ordo nekton yang ditemukan, yaitu 4 ordo dari jenis ikan dan 1 ordo dari jenis udang. Benthos yang ditemukan hanya 3 jenis dari kelas gastropoda, yaitu Bithynia tentaculata, Pomacea canaliculata dan Campeloma decisum. Struktur komunitas plankton, nekton dan benthos relatif tidak stabil serta ada kecenderungan didominansi oleh jenis tertentu.Pondok Lapan Lake (PLL) is an artificial lake located in Langkat regency. The lake its function as source of water, irrigation, catchment area, flood control, and fishing activities. Until recently data about this lake, are limited. The data related to the resource contained in the lake is very necessary for a more appropriate management. Among some of these data are organisms that inhabit the lake. This research aims to study the biological conditions of PLL to see the diversity and community structure of nekton, benthos and plankton. Sampling was conducted in February - April 2015. PLL enumeration results in the plankton found 52 species of 10 classes. There are 6 classes of groups pitoplankton and 4 classes of zooplankton groups. Nekton found there are 7 types of two classes, namely Actinopterygii and Malacostrata. Benthos found only 3 species of gastropod class, namely Bithynia tentaculata, Pomacea canaliculata and Campeloma decisum. Community structure benthos, nekton and plankton are relatively unstable and there is a trend happening dominance by a particular type