Reduction of spermatophore melanization in Litopenaeus vannamei shrimp fed Ulva clathrata during a commercial hatchery production.

Autor: Corral-Rosales DC; Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, Programa Maricultura, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, 66451, Mexico., Ricque-Marie D; Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, Programa Maricultura, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, 66451, Mexico., Cruz-Suárez LE; Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, Programa Maricultura, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, 66451, Mexico., Arjona-López O; Programa de Acuicultura, Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, 23000, Mexico., Rodríguez-Jaramillo C; Programa de Acuicultura, Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, 23000, Mexico., Navarro C; Programa de Acuicultura, Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, 23000, Mexico., Palacios E; Programa de Acuicultura, Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, 23000, Mexico. Electronic address: epalacio@cibnor.mx.
Jazyk: angličtina
Zdroj: Animal reproduction science [Anim Reprod Sci] 2020 Jun; Vol. 217, pp. 106468. Date of Electronic Publication: 2020 Apr 20.
DOI: 10.1016/j.anireprosci.2020.106468
Abstrakt: Male broodstock (Litopenaeus vannamei, 36 ± 7 g, n = 600) reproductive performance, spermatophores and reproductive tract melanization, prostaglandin concentrations and biochemical composition were evaluated after including 3.8% Ulva clathrata meal in the diet (dry base) of a commercial hatchery during 45 days. Males fed Ulva had less melanized spermatophores (120 compared with 233, P < 0.01), less bacteria in the ductus deferens (P < 0.01), more sperm cells in testicles (P < 0.05), and increased courtship activity (839 compared with 689, P < 0.01), with no effect on mortality. Ulva-fed males had more arachidonic acid (20:4n-6) in the spermatophores (P < 0.05) but this did not affect the prostaglandin concentrations in response to diet. Males fed Ulva had more carotenoids in the hepatopancreas (0.08 ± 0.02 compared with 0.01 ± 0.01 mg/g, P < 0.05), and phenolic compounds in hepatopancreas (6.1 ± 0.7 compared with 1.8 ± 0.7 mg eq. phloroglucinol/g, P < 0.05) and muscle (0.4 ± 0.3 compared with 0.2 ± 0.1 mg eq. phloroglucinol/g, P < 0.05). Males fed the Ulva also had a lesser carbohydrate content in the hepatopancreas (P < 0.01) and muscle (P < 0.01). In conclusion, supplementing fresh maturation diets with a small dose of dried Ulva allowed for improvement of reproductive performance and to decrease melanization in spermatophores and the male reproductive tract.
Competing Interests: Declaration of Competing Interest The authors declare no conflict of interest.
(Copyright © 2020 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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