학술논문
Effects of oral passive immunization against somatostatin-14 on growth performance, body composition and Ig Y delivery in rainbow trout ( Oncorhynchus mykiss) and common carp ( Cyprinus carpio).
Document Type
Article
Author
Source
Subject
*EGG yolk
*IMMUNOGLOBULINS
*SOMATOSTATIN
*RAINBOW trout
*IMMUNIZATION
*BODY composition
*FISH growth
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Language
ISSN
1353-5773
Abstract
Egg-yolk antibodies ( Ig Y) against somatostatin-14 (anti- SST-14) were evaluated as orally administered, growth promotants in gastric rainbow trout ( Oncorhynchus mykiss) and agastric common carp ( Cyprinus carpio) in an 8-week feeding trial. Feeding groups were compared with fish which did not receive anti- SST-14 Ig Y. Growth responses and Ig Y plasma contents of the blood were assessed. In contrast to rainbow trout, oral anti-SST-14 addition to carp significantly improved protein efficiency ratio ( PER, 1.02 ± 0.04) and protein productive value (PPV, 26.7 ± 0.91) after 56 days ( P < 0.05) compared to the negative control ( PER = 0.91 ± 0.02; PPV = 22.9 ± 0.66). Ig Y was undetectable in plasma of rainbow trout after oral administration, indicating that gastric degradation of the fed IgY makes this application route for growth promotion in gastric trout challenging. [ABSTRACT FROM AUTHOR]