Efficacy of Intraperitoneally and Orally Administered ProVale, a Yeast β-(1,3)/(1,6)-D-glucan Product, in Inhibiting Xenoma Formation by the MicrosporidianLoma salmonaeon Rainbow Trout Gills

Autor:	Shane Patelakis, N. J. Guselle, David J. Speare, R. J. Fred Markham
Rok vydání:	2010
Předmět:	Gill endocrine system animal structures urogenital system business.industry animal diseases Feed additive Aquatic animal Anatomy Aquatic Science Biology Beta-glucan Yeast chemistry.chemical_compound Animal science chemistry Aquaculture Rainbow trout Xenoma business
Zdroj:	North American Journal of Aquaculture. 72:65-72
ISSN:	1548-8454 1522-2055
Popis:	The objectives of the research were to compare the efficacy of ProVale yeast beta-glucan (β-glucan) with that of a previously tested research-grade yeast β-glucan preparation when administered as an intraperitoneal (IP) injection and to also pilot test the effectiveness of ProVale yeast β-glucan as a feed additive for reducing Loma salmonae xenoma formation on the gills of rainbow trout Oncorhynchus mykiss. Rainbow trout received IP injections of ProVale (4, 10, or 20 mg of ProVale/kg of fish) or Sigma β-glucan (4 mg/kg). Oral challenge with L. salmonae occurred 1 week after IP injection with the β-glucan products. For the second objective, 400 rainbow trout were separated into tanks and duplicate groups were treated with 0, 50, 100, and 200 g of ProVale/1,000 kg of feed. Starting at 3 weeks prior to challenge and continuing 2 weeks after challenge, rainbow trout were fed the various ProVale doses daily at a feeding rate of 1% of the fish biomass. Commencing at 4 weeks postchallenge, the fish in ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a9079b33ae1cd4c495b88e951c481805 https://doi.org/10.1577/a09-017.1 Zobrazit plný text záznamu Plný text