Nitrogen compounds on food consumption of pink-shrimp Farfantepenaeus brasiliensis

Ciência Rural

Furtado, Plínio Schmidt¹  D'Incao, Fernando¹  Poersch, Luís Henrique da Silva¹  Campos, Bruno Ribeiro de¹  Wasielesky, Wilson¹ 

[1] Universidade Federal do Rio Grande (FURG), Rio Grande, Brasil

关键词: ammonia;    nitrite;    nitrate;    food consumption;   

DOI  :  

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The experiments were carried out to investigate the effects of ammonia, nitrite and nitrate on food consumption of juvenile F. brasiliensis. The juvenile shrimp were acclimated for 28 days with different cronic concentrations of ammonia, nitrite and nitrate. After the acclimation period, 20 shrimps per treatment were individualized in 3 L experimental units in order to analyze their feed intake through the amount of feed offered and leftover for a period of 24 hours. The food consumption presented significant alteration (P<0.05) for the nitrite and nitrate concentrations tested, meanwhile on ammonia treatment, shrimp presented no alteration on food intake (P>0.05). According to the results obtained, nitrite and nitrate affected F. brasiliensis food consumption. However, the possibility of this to happen over long periods, can damage the species in captivity, reinforced the necessity of regular water quality management.

【 授权许可】

CC BY-NC