The Effect of Hydrolyzed Insect Meals in Sea Trout Fingerling (Salmo trutta m. trutta) Diets on Growth Performance, Microbiota and Biochemical Blood Parameters
نویسندگان
چکیده
منابع مشابه
Body size versus gonad maturation form in under-yearling precocious males of the sea trout (Salmo trutta m. trutta L.).
The study was aimed at analysing body size in relation to form of gonad maturation (amount of mature germ cells) in 329 under-yearling sea trout males. The fish, aged 7 months, were caught in late October-early November in 3 streams located in north-western Poland. Each stream supported fish belonging to a different sib group. Standard histological techniques and a computer image analysis progr...
متن کاملAnd the Last Shall Be First: Heterochrony and Compensatory Marine Growth in Sea Trout (Salmo trutta)
Early juvenile growth is a good indicator of growth later in life in many species because larger than average juveniles tend to have a competitive advantage. However, for migratory species the relationship between juvenile and adult growth remains obscure. We used scale analysis to reconstruct growth trajectories of migratory sea trout (Salmo trutta) from six neighbouring populations, and compa...
متن کاملThe growth of brown trout (Salmo trutta Linn.); the effect of temperature on the growth of two-year-old trout.
Temperature is a limiting factor in the distribution of many animals. The ova of brown trout (Salmo trutta) can develop without excessive mortality at water temperatures between 3 and 15° C. (Gray, 1928), while for adult trout, mortality is high above 20 and complete above 25 C. (Gardner & Leetham, 1914; Audige\ 1921; Gardner, 1926). It is generally assumed that temperature is the most importan...
متن کاملThe growth of brown trout (Salmo trutta Linn.); factors influencing the growth of trout fry.
It has long been known that brown trout (Salmo trutta Linn.) grow to different sizes in different waters, and there has been much speculation concerning the factors determining these differences. Dahl (1918-19) suggested that the food supply and the degree of crowding were important; also that small, slowly growing trout were derived from smaller ova than those growing more rapidly. Southern (1...
متن کاملMorphological differences in the skin of marble trout Salmo marmoratus and of brown trout Salmo trutta.
Despite being genetically very closely related, the marble trout Salmo marmoratus and the brown trout Salmo trutta exhibit marked phenotypic differences, particularly with regard to skin pigmentation. Histological analysis of skin from the head and gill cover of differently aged individuals of the two species was carried out in order to characterize differences in skin structure. The basic stru...
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ژورنال
عنوان ژورنال: Animals
سال: 2020
ISSN: 2076-2615
DOI: 10.3390/ani10061031