Dietary enrichment with crude protein content and feed additives (Bacillus spp. and yeast strains) improves growth performance, survival and circulating hemocytes in juvenile White shrimp, Litopenaeus vannamei

Effects of dietary mannan oligosaccharide on growth performance, gut morphology and stress tolerance of juvenile Pacific white shrimp, Litopenaeus vannamei.

An 8-week feeding trial was conducted to investigate the effects of dietary mannan oligosaccharide (MOS) on growth performance, gut morphology, and NH(3) stress tolerance of Pacific white shrimp Litopenaeus vannamei. Juvenile Pacific white shrimp (1080 individuals with initial weight of 2.52 ± 0.01 g) were fed either control diet without MOS or one of five dietary MOS (1.0, 2.0, 4.0, 6.0 and 8....

Probiotics in Larvae and Juvenile Whiteleg Shrimp Litopenaeus vannamei

Lysozyme gene expression by hemocytes of Pacific white shrimp, Litopenaeus vannamei, after injection with Vibrio.

The purpose of this study was to quantify the gene expression of lysozyme, an important antibacterial protein produced by shrimp hemocytes, within tissues of Litopenaeus vannamei Boone in response to a pathogen challenge. We quantified lysozyme transcripts with a real-time PCR method and used these data, along with total hemocyte counts, to infer patterns of hemocyte trafficking during the immu...

Effects of Inactivated Spot White Virus with radiation on Immune Parameters and Survival Rate of White ‎Leg Shrimp (Litopenaeus Vannamei)‎

The present resaerch was designed to evaluate the effects of Inactivated  Spot White Virus with radiation (gamma irradiant WSSV) on survival rate and immunity factors(THC, TPP, PO, SOD, POD) of white leg shrimp. The experiment was done in Bandar Imam Khomeini hatcheries from November 2013 until February 2014.  In this study, the survival rate and immunological parameters of shrimp that exposed ...

The effect of different levels of dietary niacin and carbohydrate on growth performance, carcass composition and heamolymph biochemical parameters of juvenile whiteleg shrimp (Litopenaeus vannamei)

In this study, the effect of experimental diets containing different levels of carbohydrate and niacin on growth indices, carcass composition and heamolymph biochemical parameters of juvenile whiteleg shrimp (Litopenaeus vannamei) were investigated for 45 days. Shrimp with mean initial weight of 5±0.33 g were reared in 300 liter tanks with 8 treatments. Feeding was performed 4 times a day using...