COMBINED INFLUENCE OF DIFFERENT FEED ON BODY DEVELOPMENT OF LARVAE, FRY AND YOUNG OF THE SPECIES POECILIA RETICULATA (GUPPY)

A. Gruber

Abstract
The purpose of this paper is to establish the effect of the use of the recipes obtained impinge the corporal development of the species Poecilia reticulate. The scientific researches have lasted three months, the fishes passing through three stages of development: larva, fry and juvenile. For each category of age were made three recipes of combined fodder (R₁, R₂ and R₃), taking into account the nutritional requirements of the species and to the chemical composition of raw materials and the constitution of the final fodder. For carrying out the research have formed six lots of 15 fishes that have been fed differentiated as follows:
- lot R₁: R_1larvae, R_{1fry and juvenile};
- lot R₂: R_2larvae, R_{2fry and juvenile};
- lot R₃: R_3larvae, R_{3fry and juvenile};
- lot TG: Troco Grower;
- lot TP: Troco Prim;
- lot TD: Tetra Discus.
The follow parameters have been corporal length and body weight at the end of each month by experimentation. On the basis of these parameters were determined the indices of body development (the indices rise Fulton, the gain in weight and multiplication report of average weight). As a result of the researches it was found that the proposed combined fodder recipes have led to an increase in both length and weight with values close to those achieved through existing combined fodder on the market.

Key words: Poecilia reticulate, indices Fulton, larvae, fry, combined fodder