Transcription of defense related genes in Pacific white shrimp, Litopenaeus vannamei, kept in biofloc and in clear seawater and challenged with the white spot syndrome virus

Effect of the transference of animals to different culture systems on growth performance and response to infection by white spot syndrome virus in the marine shrimp Litopenaeus vannamei (Boone, 1931) in the nursery phase

“…Studies have found that the composition and microbial communities of biofloc are influenced by the levels of protein in the diet and sources of carbohydrates. Moreover, although the BFT system is safer because it is a closed system, the presence of a virulent pathogen, such as WSSV can induce significant effects on immunocompetent cell counts, making the animals vulnerable (Abbaszadeh et al, 2019;De Souza Valente et al, 2020). However, little is known regarding the effect on growth performance and resistance to WSSV when L. vannamei is transferred from one culture system to another during the nursery phase.…”