ALMAS A GHEYAS PhD THESIS, INSTITUTE OF AQUACULTURE ii ABSTRACT Carp aquaculture in South Asia suffers severely from a lack of genetic management, which has eroded the genetic quality of both captive and wild populations. Use of molecular markers, especially microsatellites, has revolutionized genetic management of hatchery stocks through its ability to detect kinship between individuals and he...

Three species of Indian major carp (Labeo rohita,Catla catla,Cirrhinus mrigala) were collected from local fish market and fishing sites of river Brahmaputra for determining the nutritional value,seasonal variation of proximate composition and vitamin A content of these fishes.Results obtained show that there is no much significant seasonal variations in body composition of Indian major carp tho...

Heavy metal contamination usually causes depletion in food utilization in fish and such disturbance may result in reduced fish metabolic rate and hence causing reduction in their growth. Fishesare widely used to evaluate the health of aquaticecosystems because pollutants build up in the foodchain and are responsible for adverse effects and deathin the aquatic systems.Biochemical parameters asse...

Carp farming is a popular aquaculture activity that provides affordable protein sources and job opportunities to many people worldwide. As carp intensifies, farmers face major issues such as rising feed costs excessive antibiotic usage. Thus, there an urgent need explore alternative resources ensure the sustainability of industry. One most promising phytobiotics possess various properties benef...