larva feed
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The chironomidae family is related to Order of Diptera. They are called non biting midges. Females will lay egg masses in water. The larva feed on organic material such as organic debris and algae. Due to having hemoglobin in their larval blood, they are called bloodworm. They are able to live in a complete absence of oxygen for several hours. Hemoglobin molecules in the blood bind and hold a reserve supply of oxygen. Chironomus as indicators of organic pollution in aquatic environment. Chironomids were important in the diets of all fish species as well as shrimps. Bloodworms are harvested from mud flats and sold to fisherman or as a food source for domestic pets. In the world there are several centers for artificial rearing of this insect. There are different formulations of blood form which is prepared by different companies in the world. Rearing and artificial culturing this insect is important resource for fishes and shrimps which are the mina important food of human being.


2019 ◽  
Vol 1 (2) ◽  
pp. 143
Author(s):  
Sri Cahyaningsih, Slamet Subyakto

AbstractScenedesmus sp. is a microalgae as a fish and shrimp larva feed because the high nutrition value, easy to culture and harvest. The aim of these research are to know massal culture of the high density of Scenedesmus sp. and to use for Rotifera feed (natural and concetrate type). 3The experiment used one m of massal culture of Scenedesmus sp. In 0,8,16 and 24 ppt. The result showed 6that 16 ppt treatment gave the best daily growth of Scenedesmus sp.(6.78 x 10 cell/ml). Analysis of proximate and fatty acids of Scenedesmus sp. In 16 ppt also showed the best contents of protein, fat, EPA and DHA. 


1979 ◽  
Vol 10 (2) ◽  
pp. 81-90 ◽  
Author(s):  
Libertina Solomon ◽  
Anders Edler

AbstractLaelaps agilis C. L. Koch, 1836 is an abundant ectoparasite on Apodemus spp. It has 5 stages: egg, larva, protonymph, deutonymph, and adult male and female. All preadult stages from egg to deutonymph are described and illustrated. Because of the structure of the chelicera it seems likely that L. agilis feeds at abraded areas of the skin. All active stages but the larva feed. Unfed females can produce progeny, but will die within 22 days. Egg to adult is 10 days for males and 13 days for females kept at 90 % RH and 30°C.


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