Further Observations and Experiments on Goitre (so Called Thyroid Carcinoma) in Brook Trout (salvelinus Fontinalis)
نویسنده
چکیده
1. Goitre in fish is a non-infectious, non-contagious, symptomatic manifestation of a fault of nutrition, the exact biochemical nature of which has not been determined. 2. Feeding the highly artificial and incomplete diet of liver is the major etiological factor in bringing about this fault of nutrition which is at once corrected by feeding whole sea fish. 3. Water plays no essential part in the etiology, transmission, or distribution of the disease in the fish of this hatchery.
منابع مشابه
Evaluation of otolith shape variability in hatchery-reared brook trout (Salvelinus fontinalis), Black Sea trout (Salmo trutta labrax) and their hybrid
In aquaculture, the process of hybridization is used to produce animals that have better growth rates, meat quality, and higher resistance and tolerance to environmental variations than their parental species. The identification of a hybrid fish may require a DNA-based technology that is an expensive process. In this study, the sagittal otolith shape of hatchery-reared brook trout (Salvelinus f...
متن کاملAn investigation on the effects of juvenile rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) monoculture and duo-culture farming in freshwater and seawater on growth performance
The objective of this study was to compare growth performance and feed conversion ratios of rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) juveniles in monoculture and duo-culture in freshwater and seawater under aquarium conditions. The fish were about 2-months old hatchery-reared brook and rainbow trout with initial weights of 0.934±0.033 (n=360) and 1.014±0.019 (...
متن کاملAn investigation on the effects of juvenile rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) monoculture and duo-culture farming in freshwater and seawater on growth performance
The objective of this study was to compare growth performance and feed conversion ratios of rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) juveniles in monoculture and duo-culture in freshwater and seawater under aquarium conditions. The fish were about 2-months old hatchery-reared brook and rainbow trout with initial weights of 0.934±0.033 (n=360) and 1.014±0.019 (...
متن کاملObservations and Experiments on the So-called Thyroid Carcinoma of Brook Trout (salvelinus Fontinalis) and Its Relation to Ordinary Goitre
Is this thyroid hyperplasia true carcinoma? In view of the facts that young fish are more affected than old fish, that iodin stops the hyperplasia and causes it to return to the colloid state, that removal of the fish from the ponds to the open brook also affects a cure, that the clinical incidence of tumors is directly related to the water supply, and that the severity of the disease as determ...
متن کاملAcid - Base Balance and Gas Exchange in Brook Trout ( Salvelinus Fontinalis ) Exposed to Acidic Environments
Brook trout (Sahelinus fontinalis Mitchill) with a chronically implanted dorsal aortic cannula were exposed to acidic environments. During exposure, trout developed severe metabolic acidosis as shown by decreases in standard plasma bicarbonate levels as well as negative base excess values. Reduced oxygen consumption seen in acidotic trout resulted from decreased gill oxygen transfer and reduced...
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عنوان ژورنال:
- The Journal of Experimental Medicine
دوره 19 شماره
صفحات -
تاریخ انتشار 2003