Lecithin-enriched Artemia combined with inert diet and its effects on reproduction and digestive enzymes of Aequidens rivulatus
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Autor/a
Jamali, Hadi
Ahmadifard, Nasrollah
Noori, Farzaneh
Estevez, Alicia
Agh, Naser
Fecha de publicación
2019-06-27ISSN
0044-8486
Resumen
The present study investigated the effects of soybean lecithin bioencapsulated in adult Artemia franciscana and unenriched Artemia in combination with an inert diet on digestive enzymes activity and reproductive performance in Aequidens rivulatus (green terror cichlid). Eight hundred and ten fish (3.1 ± 0.2 g) were randomly allotted into glass tank (80 L) and assigned to ten dietary treatments with 5 different levels (0, 25, 50, 75, and 100%) of either lecithin-enriched Artemia (EA) or unenriched Artemia (UA) over a period of 90 days. The amount of total polar lipid increased from 39.2% in the unenriched Artemia to 43.7% in the lecithin-enriched Artemia (P < .05). The fish fed with 50% EA had higher total weight, and total length compared with other groups (P < .05). The peculiar functions of total alkaline proteases, α-amylase, and lipase in green terror increased in the groups fed with lecithin-enriched Artemia, compared to the un-enriched groups (P < .05). The highest total alkaline proteases activity was observed in the fish fed with 75% EA treatment. In comparison to the other groups, fish fed 100 and 0% levels of Artemia replacement had significantly highest and lowest α-amylase activity values, respectively. Concerning reproductive performance, the highest average fecundity, egg diameter, egg weight, fertilization, hatching, and larval survival rates, as well as the lowest time between two spawning episodes, were obtained in fish fed 50% EA. In conclusion, this feeding strategy is advisable for a proper nutritional management of broodfish of green terror cichlid.
Tipo de documento
Artículo
Versión del documento
Versión aceptada
Lengua
English
Materias (CDU)
639 - Caza. Pesca. Piscicultura
Páginas
29
Publicado por
Elsevier
Publicado en
Aquaculture
Citación
Jamali, Hadi, Nasrollah Ahmadifard, Farzaneh Noori, Enric Gisbert, Alicia Estevez, and Naser Agh. 2019. "Lecithin-Enriched Artemia Combined With Inert Diet And Its Effects On Reproduction And Digestive Enzymes Of Aequidens Rivulatus". Aquaculture 511: 734253. Elsevier BV. doi:10.1016/j.aquaculture.2019.734253.
Program
Aqüicultura
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