LEVELS OF METABOLIZABLE ENERGY FOR RATIONS OF BULLFROG

The objective of the present study was to evaluate the effects of the interaction among the level of gross protein (GP)/metabolizable energy (ME), in the ration of the frogs through the acting of the animals (I win of weight, alimentary consumption, alimentary conversion). Five rations were formulated with 40% of PB and five levels of EM (2300, 2400, 2500, 2600, 2700 Kcal Kg(-1) of ration), supplemented with oil. The experimental design was completely randomized blocks with five treatments and four repetitions and twenty-five animals for experimental unit. The initial weight was of 13.0 g-17.0 g; 17.1 g-21.0 g; 21.1 g-25.0 g; 25.1 g-30.0 g in the blocks 1,2,3,4 respectively. The feeding was supplied "ad libtum" with 10% of fly larvae up to the thirtieth day and 5% of the thirtieth day in before. The ration consumption was not affected by the level of the ration. The consumption of energy of the ration had the same behavior ration consumption, there was a tendency of larger consumption of energy for the level of 2500 Kcal/Kg. The difference between the largest consumption of energy and the smallest was of 15.21% and this difference for the ration consumption it was of 12.07%. The alimentary conversion didn't vary among the levels. The carcass revenue was not influenced by the level of IN in the ration. The frogs that received ration with a level of 2400 Kcal/Kg they presented a value of the relationship Hepato-somatic superior at the level of 2600 Kcal/Kg. There was an increase of the relationship Lipo-somatic when he/she increased the level.