The introduction to the nutrition of two-years carps of fenaron in count of 10 mg for one ton during 10 days leads to the rise of the deal of haematocrit figure, of the concentration of haemo- globin, of the quantity of erytrocits and to the rise of globules.
The development of small agricultural waterbodies should be based on using of their natural biological potential. Consequence of it will be the reception of cheaper fresh fish accessible to the population. The application of the integrated technologies and the elimination of disharmonies in an evaluation of work results in an agriculture and in the industry are very important.
Тhe further development of small waterbodies should be combined with the complex develop- ment of agricultural territories and the state support.
Article is devoted to urgent problems and perspectives of development selection and brood- stock breeding in fish-farming of Ukraine in conditions of implement of the Act of Ukraine “ About livestock breeding” and other normative — legal documents.
Analysis of genetic structure at various breeds and hybrid groups of carp was carry out. Most informative for discovering of intergroup variations were malatdegidrogenaza and 6-phosphoglu- konatdegidrogenaza enzymes and locus of transferrin. The polymorphism value of these systems are may promote the objective control of imbreeding power of the fish groups and also the modi- fication of genetic structure in generations and in various breeding conditions.
The application of wheat germinate corn in feeding of carp two-years old evidence about positive influence on the physiology condition of fish, food and biological value of meat and determines enough high economic efficiency.
It was researched the influence of iodine salts KJ and KJO3 which were added to the fish-breed- ing ponds on the activity of hydrocarbon digestion of the Lyubin` scale carps. It was established that the action of 0,1 g/m3 of KJ during 92 days doesn’t cause the changes of medium value of carbohidrase activity in the digestive system of Lyubin` scale carps. The action of KJO3 under the similar condition decreases the cavity carbohidrase activity in the medial part 53% in comparison with control.
It has been established that during the summer period the content of acid’s lipids Molecular rich acids in the liver of Lubinskyi scate carp, the white carp and the silver carp rises in 2,66, 2,97 and 3,47, and of the free fatty acids in 2,50, 2,62 and 2,77 times. During this summer the Molecular rich acids of lipids and tne free fatty acids in the liver of silver carps and white carps in comparaison with the Lubinskyi scale carp is lower.
It is stated, that a nourishment makes an impact on the content of free amino acid in the organism of the examined fish. Depending on the nourishment of the given species of fish the amino acids that belong to aliphatic and cyclic groups prevailed in their muscles. Absence of free tryptophan in the muscular tissue of all examined fish during the summer period indicates that the feed base was maximum possible for both the predatory fish as well as for benthophage.
There are presented results of morphological studies of two-years-old rainbow trout. There was determined the weight of different organs and body parts of commodity fish, which had different initial weights. It was found that fish with bodyweight of 240–265 g had the highest percentage (66,3%) of fillet.
Work is devoted to analysis of fecundity dynamics of Alosa caspia tanaica of Dnieper-Bug estuary. Modern condition in comparison with the last years was analyzed. Attempt to connect fecundity with catches was made.