hepatopancreas


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hepatopancreas

[¦hep·əd·ō′paŋ·krē·əs]
(invertebrate zoology)
A gland in crustaceans and certain other invertebrates that combines the digestive functions of the liver and pancreas of vertebrates.
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In this study, a tendency of increased glycogen and soluble protein in the hepatopancreas and muscle glycogen, followed by a decline with an increase of dietary CBH was observed, which is possibly related the glycogen synthesis affected by the soluble protein content, because Litopenaeus vannamei can convert protein to glycogen through gluconeogenesis, depending on the degree to which the amino acid is used for osmotic regulation at low salinities (Rosas et al.
The activity of digestive enzymes and the histological organization of the hepatopancreas were analyzed to assess the effectiveness of a pellet diet on digestive performance.
Previous studies have shown that PR is present in the ovary, hepatopancreas, and nerve tissues of some crustacean species.
Species of Vibrio isolated from the hepatopancreas, haemolymph and digestive tract of a population of healthy juvenile Penaeus vannamei.
The effect of dietary zinc supplementation on growth, hepatopancreas fatty acid composition, and gene expression in the Chinese mitten crab, Erioeheir sinensis.
Estudio morfologico e histologico del hepatopancreas del langostino Pleoticus muelleri (Bate) (Crustacea, Penaeoidea).
1980), who observed rapidly depleted glycogen stores in the hepatopancreas of the shrimp Marsupenaeus japonicus during a 28-day starvation study.
The GI stages were 0, no gonad development visible; 1, immature, gonad developing but still not prominent; 2, mature, 25% of the hepatopancreas or liver is covered by the gonad; and 3, fully mature, 50% or more of hepatopancreas is covered by the gonad.
In abalone, nutrient absorption was originally thought to only occur in the intestine, whereas the crop and stomach were regarded as areas for food collection, and in the stomach, the addition of digestive enzymes from the hepatopancreas (Crofts 1929).
A lower rate of filtration and processing of food might in these animals relative to the controls and animals exposed to a lower concentration of cadmium may have reduced the digestive activity of the hepatopancreas.
It has been demonstrated that the prophenoloxidase transcript was expressed in the hepatopancreas, heart, mid gut, and other locations, and PO activity was also found in these locations (Wang et al.