Latihan SAS Genap XI APAT

📘 Latihan SAS Genap

🌿 Bahasa Inggris – Kelas XI APAT | Target CEFR B1

⏱️ 30 PG + 10 B/S + 5 Esai 📝 Skor otomatis (PG+B/S) ✅ Ketuntasan ≥70 📱 Mobile friendly

📖 Teks 1: Intensive vs Semi-Intensive Fish Farming

In intensive farming, fish are stocked at high density (up to 50 fish/m²), using artificial feed and aeration. Production per area is high, but requires high investment and careful disease control. Semi-intensive farming uses lower density (5–10 fish/m²), natural food plus supplementary feed, and relies on natural water exchange. It is more sustainable but yields lower profit per area.

Data: Intensive: stocking density 50 fish/m², FCR 1.5, survival rate 90%, production cost Rp25,000/kg, selling price Rp35,000/kg. Semi-intensive: stocking density 8 fish/m², FCR 2.0, survival rate 85%, production cost Rp18,000/kg, selling price Rp30,000/kg.

📖 Teks 2: Pak Andi's Tilapia Farm (Case Study)

Pak Andi started a tilapia farm with one pond of 200 m². He stocked 2,000 fingerlings. After three months, survival rate was 85% (1,700 fish). Average weight reached 250 grams. Total cost: feed Rp6,000,000, other variable costs Rp2,000,000, fixed costs Rp2,000,000. Revenue: sold 1,700 fish at Rp12,000 each = Rp20,400,000. Net profit = Rp10,400,000. FCR was 2.0, which is not optimal.

📖 Teks 3: Monthly Report Structure

A monthly report should include: Overview (general pond condition and summary), Data (key numbers: fish count, average weight, feed consumption, costs, revenue), Plan (next actions to improve production). Example: Overview: The pond is in good condition, fish are healthy. Data: Survival rate 88%, average weight 220 g. Plan: Next month we will add probiotics.

📖 Teks 4: Vannamei Shrimp & Sustainable Farming

Article 1: Vannamei shrimp is Indonesia's top aquaculture commodity. Production increased 40% in five years. The "Shrimp Revolution" program aims to make Indonesia the world's largest shrimp exporter by 2028. Global demand is high, price stable at $6–8 per kg. Article 2: Sustainable practices include probiotics instead of chemicals, partial harvesting (taking 30–50% of shrimp at a time), and mangrove-friendly ponds. These methods increase profits by 20–30% and protect nature. Challenges: white spot syndrome disease, climate change affecting water salinity.

📖 Teks 5: Water Quality Management (untuk soal Esai 41-45)

Good water quality is essential for tilapia growth. Ideal temperature 27–30°C, pH 6.5–8.5, dissolved oxygen (DO) above 4 ppm. Last month, a farmer noticed his fish eating less and swimming near the surface. He measured the water and found that DO was only 2.5 ppm and pH was 9.0. He immediately added an aerator and changed 20% of the pond water. After three days, the fish returned to normal feeding.

☆ Soal PG (30) + B/S (10) dinilai otomatis. Essay sebagai latihan mandiri, tidak masuk skor. Teks wacana tersedia di atas.