Utilization of Yolk: Transition from Endogenous to Exogenous Nutrition in Fish

Jaroszewska, Marta; Dąbrowski, Konrad

doi:10.1002/9780470959862.ch6

Cited by 33 publications

(26 citation statements)

References 142 publications

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“…Newborn seahorses showed an alimentary canal with simpler structures and lower functionality in comparison with the adults, structural and functional development continuously improved with age, as described in other marine fish larvae (Govoni et al 1986;Jaroszewska and Dabrowski 2011). The absence of teeth associated with the lack of morphological and functional stomach implies that prey digestion happens entirely in the intestine (midgut and hindgut).…”

Section: Discussionmentioning

confidence: 82%

Development of seahorse (Hippocampus reidi, Ginsburg 1933): histological and histochemical study

Novelli

Socorro

Caballero

et al. 2015

Fish Physiol Biochem

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Biological aspects and global demand for aquarium promote seahorses as new species with high potential for commercial purposes; however, the low newborn survival rate represents the main bottleneck of seahorses farming. In this study, the organogenesis of the Hippocampus reidi was analysed from release until the 30th day after birth, using histological and histochemical approaches. To study the stages of their early life, 360 individuals were killed, sectioned, and stained with haematoxylin and eosin, periodic acid-Schiff, and Sudan Black B techniques. At birth, mouth and anus were open, the swim bladder inflated, and the visual system highly developed. Among the results, it was emphasized the presence of the yolk sac until the 2nd day after birth, the loops of the intestine to accommodate its elongation, and the ability of the larvae to absorb lipids in the anterior and posterior tract of the intestine. A short time (7/8 days) between reabsorption of yolk sac and formation of gonads was registered, with primordial follicles visible from the 10th day after birth. For the first time, organogenesis in H. reidi was described in detail; seahorses underwent a marked metamorphosis, and the indirect development observed in this species lead up to reconsider the term "juvenile" used for H. reidi during this period.

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Section: Discussionmentioning

confidence: 82%

Development of seahorse (Hippocampus reidi, Ginsburg 1933): histological and histochemical study

Novelli

Socorro

Caballero

et al. 2015

Fish Physiol Biochem

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“…At this stage, most lipid moieties are sequestered in the form of vitellogenins, lipovitellins, and other lipoproteins. Until feeding begins around six days post fertilization, all of the energy and nutrients necessary for development come from the yolk 30,31 . More detailed inference on the spatial distribution of lipids was limited by the resolution of DESI-MS, usually hundreds of microns, and by the modest degree of morphological differentiation within embryos at such an early stage of development.…”

Section: Resultsmentioning

confidence: 99%

Lipid dynamics in zebrafish embryonic development observed by DESI-MS imaging and nanoelectrospray-MS

et al. 2016

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The zebrafish Danio rerio is a model vertebrate organism for understanding biological mechanisms. Recent studies have explored using zebrafish as a model for lipid-related diseases, for in vivo fish bioassays, and for embryonic toxicity experiments. Mass spectrometry (MS) and MS imaging are established tools for lipid profiling and spatial mapping of biomolecules and offer rapid, sensitive, and simple analytical protocols for zebrafish analysis. When ambient ionization techniques are used, ions are generated in native environmental conditions, requiring neither sample preparation nor separation of molecules prior to MS. We used two direct MS techniques to describe the dynamics of the lipid profile during zebrafish embryonic development from 0 to 96 hours post-fertilization and to explore these analytical approaches as molecular diagnostic assays. Desorption electrospray ionization (DESI) MS imaging followed by nanoelectrospray (nESI) MS and tandem MS (MS/MS) were used in positive and negative ion modes, allowing the detection of a large variety of phosphatidylglycerols, phosphatidylcholines, phosphatidylinositols, free fatty acids, triacylglycerols, ubiquinone, squalene, and other lipids, and revealed information on the spatial distributions of lipids within the embryo and on lipid molecular structure. Differences were observed in the relative ion abundances of free fatty acids, triacylglycerols, and ubiquinone - essentially localized to the yolk - across developmental stages, whereas no relevant differences were found in the distribution of complex membrane glycerophospholipids, indicating conserved lipid constitution. Embryos exposed to trichloroethylene for 72 hours exhibited an altered lipid profile, indicating the potential utility of this technique for testing the effects of environmental contaminants.

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“…The presence of a mixed nutrition stage might be an advantage for rearing P. punctifer larvae in ponds, as it would guarantee the successful transition to exogenous feeding of larvae or minimize the potential negative effects of a delayed time of first feeding (Gisbert and Williot, 1997). The transition to exogenous food in the presence of yolk reserves generally implies that the alimentary canal is functional, although structural and functional development still continues from the larval to the juvenile and adult forms (Jaroszewska and Dabrowski, 2011).…”

Section: Discussionmentioning

confidence: 99%

Histological development of the digestive system of the Amazonian pimelodid catfish Pseudoplatystoma punctifer

Gisbert

Moreira

Castro-Ruiz

et al. 2014

Animal

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The organogenesis of the digestive system was described in the Amazonian pimelodid catfish species Pseudoplatystoma punctifer from hatching (3.5 mm total length, TL) to 41 days post-fertilization (dpf) (58.1 mm TL) reared at 28°C. Newly hatched larvae showed a simple digestive tract, which appeared as a straight undifferentiated and unfolded tube lined by a single layer of columnar epithelial cells (future enterocytes). During the endogenous feeding period, comprised between 20 and 96 h post-fertilization (3.5 to 6.1 mm TL), the larval digestive system experienced a fast transformation with the almost complete development and differentiation of most of digestive organs (buccopahrynx, oesophagus, intestine, liver and exocrine pancreas). Yolk reserves were not completely depleted at the onset of exogenous feeding (4 dpf, 6.1 mm TL), and a period of mixed nutrition was observed up to 6 to 7 dpf (6.8 to 7.3 mm TL) when yolk was definitively exhausted. The stomach was the organ that latest achieved its complete differentiation, characterized by the development of abundant gastric glands in the fundic stomach between 10 and 15 dpf (10.9 to 15.8 mm TL) and the formation of the pyloric sphincter at the junction of the pyloric stomach and the anterior intestine at 15 dpf (15.8 mm TL). The above-mentioned morphological and histological features observed suggested the achievement of a digestive system characteristic of P. punctifer juveniles and adults. The ontogeny of the digestive system in P. punctifer followed the same general pattern as in most Siluriform species so far, although some species-specific differences in the timing of differentiation of several digestive structures were noted, which might be related to different reproductive guilds, egg and larval size or even different larval rearing practices. According to present findings on the histological development of the digestive system in P. punctifer, some recommendations regarding the rearing practices of this species are also provided in order to improve the actual larval rearing techniques of this fast-growing Neotropical catfish species.Keywords: histology, ontogeny, digestive system, catfish, larvae, Amazonia ImplicationsThe aquaculture of Amazonian native species requires the mastering of their biological cycle, especially the improvement of current larval rearing procedures. In this context, the present study provides a detailed and comprehensive description of the development of the digestive tract and accessory glands in the pimelodid catfish Pseudoplatystoma punctifer. This information will provide insight in the digestive physiology of this Amazonian fish species in order to synchronize the stage of larval development with rearing procedures and overcome actual larval rearing bottlenecks (e.g. diet formulation, weaning and cannibalistic behaviour). IntroductionAquaculture in Latin America and the Caribbean is principally known for the salmon industry in Chile and shrimp farming in Ecuador. However, the benefits of this export-oriented and large-scale...

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Utilization of Yolk: Transition from Endogenous to Exogenous Nutrition in Fish

Cited by 33 publications

References 142 publications

Development of seahorse (Hippocampus reidi, Ginsburg 1933): histological and histochemical study

Development of seahorse (Hippocampus reidi, Ginsburg 1933): histological and histochemical study

Lipid dynamics in zebrafish embryonic development observed by DESI-MS imaging and nanoelectrospray-MS

Histological development of the digestive system of the Amazonian pimelodid catfish Pseudoplatystoma punctifer

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