关键词: 家蝇, 幼虫, 集约化生产, 内禀增长率

Abstract: This paper studied the intensive production of housefly larva under artificial conditions. In an area of 240m² (daily production unit 60m²), the maximum yield of fresh maggot was more than 200kg·d^-1, with an average of 150kg·d^-1. The second day after hatching was the key stage for maggot growth and development, and thus, the environmental conditions and food quality should be controlled strictly. Three days after same aged housefly cohort oviposition, the oviposition climax emerged and maintained 3～4 days. Female individuals oviposited 10～14 times in their life span, 100～200 ovums in average, and 900 ovums in maximum per time. It took one day and 4～5 days respectively to make the ovum become larva and adult. The increasing process of maggot weight could be simulated by Logistic curve. The ratio of maggot/feeding was 0.4～0.5, and that of economic output/input 2.1～3.3. In our experiment, the practical multiplication of housefly population size after one generation was 25.5% of theoretical one. Making use of agricultural by-products and waste materials to rear maggot was an available approach to gain high-quality animal protein and forage.

Key words: Housefly, Larva, Intensive production, Intrinsic rate of increase