Evaluation of the Effectiveness of a Matrix of Exogenous Proteases in the Nutrition of Shrimp <i>Penaeus vannamei</i>

Evaluation of the Effectiveness of a Matrix of Exogenous Proteases in the Nutrition of Shrimp <i>Penaeus vannamei</i>

This study evaluated the effectiveness of a matrix of acid and alkaline proteases in diets for <i>Penaeus vannamei</i> shrimp, considering zootechnical performance, meat yield, and intestinal histomorphometry. The experiment was carried out in 32 experimental units, with four treatments...

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Main Authors: Joice Teixeira Souza, Maria Érica da Silva Oliveira, Ana Elidarly da Cunha, Vanessa Maria Freitas da Silva, Ruan Arthur Nunes de Araújo, Mário Augusto Monteiro Silva, Raimundo Audei Henrique Júnior, Marcos Aurelio Victor de Assunção, Ana Cecília Araújo Lopes, Daniel Pigatto Monteiro, Thiago Pereira Ribeiro, Moacir Franco de Oliveira, Matheus Ramalho de Lima
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Animals
Subjects:
shrimp
exogenous enzymes
protease
performance
fish quality
histology
Online Access:https://www.mdpi.com/2076-2615/15/10/1410
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Summary:This study evaluated the effectiveness of a matrix of acid and alkaline proteases in diets for <i>Penaeus vannamei</i> shrimp, considering zootechnical performance, meat yield, and intestinal histomorphometry. The experiment was carried out in 32 experimental units, with four treatments and eight replications each, using a density of 80 shrimp per square meter. The treatments consisted of positive control (PC) with standard diet, negative control (NC) with nutritional reduction, PC supplemented with 250 g/t of proteases (PCE), and NC supplemented with 250 g/t of proteases (NCE). In the fattening phase, significantly greater weight gain was observed in the NCE (14.23 g) and PCE (13.6 g) groups (<i>p</i> = 0.0381). Feed efficiency increased by 56.07% in the NCE group. Weekly growth was higher in the PCE (113.4%) and NCE (118.6%) groups (<i>p</i> = 0.028), with post-slaughter yields of 53.03% (NCE) and 52.21% (PCE). Water and humidity retention capacity remained stable in the NCE group during 210 days of frozen storage after slaughter. Intestinal histology indicated a greater absorption area in the groups with the best feed conversion and growth rates. It is concluded that protease supplementation improves nutrient absorption, growth, and meat yield in <i>P. vannamei.</i>
ISSN:2076-2615

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