Data/hora: 01/06/2024 05:51:27

Provedor de dados: 	50	
País: 	Colombia	
Título: 	Effect of Bacillus firmus C101 on the growth of Litopenaeus vannamei Boone (White Shrimp) post-larvae, and Brachionus plicatilis s.s. Müller (Rotifer)	
Autores: 	Ruiz-Toquica,Jordan Steven; Becerra-Real,Laura Milena; Villamil-Díaz,Luisa Marcela.	
Data: 	2020-06-01	
Ano: 	2020	
Palavras-chave: 	Probiotic; Growth promoter; Bacillusfirmus; White shrimp; Rotifers.	
Resumo: 	ABSTRACT The growing demand for aquaculture protein suggests seeking biotechnological alternatives that improve the cultivation of species of commercial interest. In this study, Bacillusfirmus C101 was evaluated as a growth promoter and probiotic potential, which was characterized and subsequently administered (106 CFU mL-1 * day) in post-larvae of white shrimp (Litopenaeus vannamei) and rotifers (Brachionusplicatilis sensu stricto). B. firmus C101 was observed to have the tolerance to bile salts, strong phosphatase activity, and antimicrobial activity against pathogens such as Vibrio alginolyticus and Aeromonas hydrophila, among others. On the other hand, after its administration for three weeks to postlarvae of shrimp, it caused a significant increase (p &lt; 0.05) in the specific growth rate (TEC = 3.8 ± 0.7 % day-1), the increase in daily weight (ADG = 1.5 ± 0.1 mg day-1) and in the feed conversion rate (TCA = 1.5 ± 0.1 %) compared to controls without the addition of this bacterium (sterile PBS). Likewise, the administration of B. firmus C101 (106 CFU mL1 * day) to rotifers caused an increase in the population growth rate (TC = 20.2 ± 1.5 % day1), fertility (F = 0.4 ± 0.03 eggs individuals-1) and productivity (R = 16.0 ± 0.7 individuals mL-1 * day) after 48 h of culture. Based on the above and in comparison with other studies, B. firmus C101 is suggested as a potential probiotic and growth promoter in shrimp postlarvae, and as the first report of the effect of its administration in rotifers. However, studies on the possible mechanisms of action are required, as well as tests on a pilot and commercial scale to validate these results and their possible transfer to the productive sector.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100063	
Editor: 	INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS "JOSE BENITO VIVES DE ANDRÉIS" (INVEMAR)

INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS -JOSE BENITO VIVES DE ANDRÉIS- (INVEMAR)	
Relação: 	10.25268/bimc.invemar.2020.49.1.774	
Formato: 	text/html	
Fonte: 	Boletín de Investigaciones Marinas y Costeras - INVEMAR  v.49 n.1 2020	
Fonte: 	info:eu-repo/semantics/openAccess