Ocorrência ou não de protozoários e qualidade dos cecotrófos de coelhos alimentados com diferentes dietas

Abstract

In animals that have functional cecum preservation depends on the intestinal microbiota provided diet composition. Some authors have reported the presence of protozoa in rabbits, on the other hand, others claim the absence of these microorganisms. Thus, the objective of this research is to observe the presence or absence of protozoa cecotrophes in rabbits fed different diets. The experiment was conducted at the Universidade Tecnológica Federal do Paraná, in the Campus Dois Vizinhos in the Unidade de ensino pesquisa e extenção de cunicultura. It used twelve contemporary rabbits, males and females crossed from races Nova Zelândia and Borboleta, housed in individual cages with drinkers pacifier and metal feeders. Three treatments with different diets were performed: 100% Rami (Boehmeria nivea); 50% Ration and 50% Rami and diet 100% Ration , with four animals in each treatment. The experiment lasted thirty days, two cycles of collections with seven day intervals, before this was performed period of adaptation to diets fortnight. To collect the cecotrophes, the rabbits were prevented from carrying out the caecotrophy with the use of necklaces made from plastic bottle. Sombrites were placed below the cages for the collection of cecotrophes to obtain the mass produced in each repetition. In order to determine the nutritional composition of the samples, Dry matter analyzes were performed (MS), crude protein (PB), neutral detergent fiber (FDN), mineral matter (MM), organic matter (MO) and analysis of the potential of Hydrogen (pH) of the samples. Nutrients of ramie and commercial ration were also submitted to analysis of MS, PB, FDN and MM and MO. The experimental design was completely randomized with three treatments (different diets), four repeats (animals) and repeated measures (2 cycles of collections). Was made analysis of variance to detect differences between treatments, the averages were compared by Tukey test at 5% probability using the program Genes software. Determination of the presence of protozoa was made in Sedgewick-Rafter counting chamber, which was not found in any sample protozoa, confirming the absence cecotrophes in rabbits fed with different diets. In the nutritional composition of the analyzed cecotrophes did not present a significant difference influenced by the type of diet, when measured% MM, % MO and %PB, and the amount of protein provided by cecotrophes in relation to protein intake was around 26 %, there was significant difference in FDN% was most evident in the treatment containing 50%Ração + 50% Rami feed and the amount produced was higher when cecotrophes provided ramie fodder to animals.