Tujuan penelitian ini adalah untuk mengidentifikasi potensi sapi potong di Kecamatan Bayang Kabupaten Pesisir Selatan demi mewujudkan produksi bibit sapi potong unggul. Materi dalam penelitian ini adalah 361 orang peternak sapi potong sebagai responden. Metode yang digunakan adalah sensus dan Stratified Random Sampling. Peubah yang diukur adalah komposisi dan struktur populasi, penampilan reproduksi, natural increase (NI), net replacement rate (NRR) dan Dinamika/Estimasi populasi ternak sapi potong. Analisis data dilakukan dengan pendekatan teori pemuliabiakan ternak dan analisis time series. Hasil yang didapatkan menunjukkan komposisi ternak sapi potong di Kecamatan Bayang Kabupaten Pesisir Selatan terdiri dari sapi Pesisir (50,15%), sapi SimPes (25,80%), Bali (17,06%), sapi SimPO (3,75%), dan Brahman Cross (2,18%). Persentase sapi potong yang keluar yaitu 6,12%, lebih banyak dibandingkan dengan persentase ternak sapi potong yang masuk yaitu 5,10%. Nilai natural increase (NI) ternak sapi mendapatkan presentase sebesar 17,64% yang melihatkan pertambahan populasi sapi potong termasuk kategori sedang. Nilai net replacement rate (NRR) ternak sapi jantan (1311,42 %) dan sapi betina (674,34%). Estimasi populasi sapi potong pada tahun 2017 sebanyak 2093,40 ekor dan tahun 2021 kekurangan sapi potong sebanyak 258,60 ekor dimana rataan terjadinya penurunan populasi pertahun sebanyak 783,92 ekor atau 25,83%. Kesimpulan dari penelitian ini menyatakan bahwa Kecamatan Bayang Kabupaten Pesisir Selatan Provinsi Sumatera Barat dinyatakan layak untuk menjadi daerah pembibitan sapi potong.

ABSTRAKPenelitian ini bertujuan untuk mengetahui keragaman gen hormon pertumbuhan (GH) dengan enzim MboII pada itik Sikumbang Janti dengan menggunakan penciri PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism). Penelitian ini menggunakan sebanyak 50 sampel darah itik Sikumbang Janti. Sampel darah itik Sikumbang Janti diambil melalui vena achilaris sebanyak ± 1 ml. DNA sampel darah diisolasi menggunakan protocol Genomik DNA Purification Kit (Promega). DNA total diamplifikasi menggunakan sepasang primer F : 5'-CTG GAG CAG GCA GGA AAA TT-3' dan R: 5'-TCC AGG GAC AGT GAC TCA AC-3' yang menghasilkan fragmen exon 1 gen GH dengan panjang 801 bp. ABSTRACT This study aimed at determinating the gene diversity of growth hormone (GH) by the enzyme MboII identifier at ducks of Sikumbang Janti using PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism). This study used 50 blood samples of Sikumbang Janti ducks, taken through a vein achilaris as much as ± 1 ml. DNA blood samples were isolated using the protocol Genomic DNA Purification Kit (Promega). Total DNA was amplified using primer pair F: 5'-CTG CAG GCA GGA GAG AAA TT-3 'and R: 5'-TCC AGG TCA GAC GAC AGT AC-3' which resulted in exon

This study is aimed to determine polymorphism of the Prolactin gene (PRL|PstI) in Sikumbang Jonti ducks using PCR-RFLP (Polymerase Chain Reaction–Restriction Fragment Length Polymorphism) method. This study used 56 Sikumbang Jonti ducks whose blood samples were taken. Gene amplification used a pair of primers forward 5' TGC AAA CCA TAA AAG AAA AGA 3' and reverse 5' CAA TGA AAA GTG GCA AAG CAA 3', which resulted in a 400 bp fragment in exon 5 of the Prolactin (PRL) gene. The amplification product was restricted using the PstI enzyme, which recognizes the truncation site (5' G↓ACGTC 3'). From 56 samples of Sikumbang Jonti ducks identified, just one genotype was found, homozygous (-/-) with only one allele (-). Analysis of the restriction product in Sikumbang Jonti ducks obtained a uniform genetic variation of PRL|PstI (monomorphic) with an allele frequency (-) of 100%.

The pupose of this study was to identify genetic polymorphisms of bovine growth hormone gene exon 4, and intron 4 in local cattle breeds in West Sumatera Province of Indonesia. DNA was isolated from 60 blood samples and polymerase chain reaction (PCR) product of GH5 fragment (366 bp) were directly sequenced. Multiple alignments, including 60 bGH DNA sequences obtained by direct sequencing and bGH sequences from a public database (National Center for Biotechnology Information, acces number M57764), revealed 15 polymorphisms (five SNP, eight deletion, and two insertion). Eight deletions were

This research is based on the weakness of teachers in preparing the learning tools in the school assisted byCerenti Districts researcher Kuantan Singingi. The purpose of this study is to improve the quality of learningtools created by teachers in districts Cerenti. This study used a school action research design consisting of 2cycles. Each cycle consists of 4 stages namely, planning, implementation, observation and reflection. From theresult of research, Primary School 005 Sikakak in cycle I got the percentage value of 50% after the second cycleincreased to 85%, the increase of 35 points. Primary School 006 Pesikaian, in cycle I got the percentage valueof 65% and increased to 90% in cycle II, the increase of 25 points. Primary School 008 Kompe Berangin, in thefirst cycle got a value of 75% and in the second cycle increased to 90%, an increase of 15 points. PrimarySchool 010 Tanjung Medan, in cycle I got a value of 65% and increased to 85% in cycle II, the increase of 20points. Primary School 011 Pulau Panjang, in cycle I got the percentage value of 80% and in the second cycleincreased to 95%, the increase of 15 points. From the description of the data above can be concluded that, withclinical supervision can improve the quality of learning tools made teachers in Primary School Cerenti District.