แบบจำลองการเติบโตฐานน้ำหนักสำหรับปลานิลที่เลี้ยงในบ่อบำบัดน้ำเสียโดยไม่ให้อาหาร

• Main Author: ชัยวัฒน์ เนติทวีทรัพย์
• Other Authors: รตินันท์ บุญเคลือบ
• Format: Theses and Dissertations
• Language: Thai
• Published: จุฬาลงกรณ์มหาวิทยาลัย 2012
• Subjects: ปลานิล > การเลี้ยง; Nile tilapia
• Online Access: https://digiverse.chula.ac.th/Info/item/dc:34574
• Institution: Chulalongkorn University

Nile tilapia (Oreochromis niloticus) is a popular freshwater fish which grow for consumption and aquaculture. There are many researches about Nile tilapia for developing farming and increasing product. In this research, we study the growth model for Nile tilapia to predict the weight of fish which grown in the water treatment pond without feeding by considering the amount of time and environmental factors that reasonably affect the growth. These factors are water temperature, unionized ammonia (NH3), dissolved oxygen (DO), biochemical oxygen demand (BOD), fish stocking density and natural food which is estimated from the amount of Carbon, Nitrogen and Phosphorus (which are an important nutrient required for algal growth). The pH factor and BOD factor controller are also included in order to have a new growth model that is more reasonable and less error. This model may be adapted to predict the weight of fish that grows in freshwater with feeding. Moreover, sensitivity analysis is carried out to analyze how sensitive our parameters and variables are.