Erva-cidreira (Lippia alba) como aditivo fitogênico na alimentação de cabras leiteiras.

Abstract

The aim of this study was to study the influence of Erva-cidreira as a phytogenic additive in the feeding of dairy goats on productive parameters, milk composition, rumen fluid evaluation and hematological profile. The experiment was conducted in the sheep-farming sector of the IFPB - Sousa and the experimental trial was arranged in double latin square. The treatments were: T0 = no inclusion of Erva-cidreira in the diet; T30 = inclusion of 30 grams of Erva380 cidreira in the diet; T60 = inclusion of 60 grams of Erva-cidreira in the diet and T90 = inclusion of 90 grams of Erva-cidreira in the diet. The variables studied were: Water intake, CMS, CMO, CMM, CNT, CPB, CFN, CFDA, CEE, EA, CA, milk production and composition (pH, Fat, Protein, Density, Dornic, Cryoscopy, Total Solids and Non-fat Solids), rumen fluid parameters (pH, PRAM, sedimentation, flotation, viscosity, coloration, presence, size and motility of infusoria) and hematological profile (Total erythrocyte count, total leucocytes count, total protein and hematocrit). The variables of water consumption, nutrient consumption, AE, CA, milk production and composition were analyzed using the statistical package R Core Team (2020), subjected to analysis of variance and regression, with means compared by the Tukey test at 5% probability. As for quantitative analyses of rumen liquid (pH, PRAM, sedimentation, flotation) and the variables of the hematological profile, they were evaluated by analysis of variance and the means compared by the Tukey test at 5% and regression analysis through the REG of SAS. The rumen fluid qualitative data (Color, viscosity, motility and live infusoria) were log transformed and then subjected to analysis by Pearson's chi-square test with degree of freedom equal to 1 and an error of 0.05 using PROC FREQ of SAS (2002). There was no significant effect for water consumption. There was significant difference (P<0.05) in CMS, CNT and CPB. No significant effect (P>0.05) was observed for CMO, CMM, CFDN, CFDA and CEE. The C.A and E.A showed significant differences among treatments (P>0.05). Milk production and fat corrected milk production was significantly higher (P<0.05) for the animals that received lemongrass in the diet. There were no statistical differences (P>0.05) for pH, Acidity D°, protein, cryoscopy, Total Solids, Non-fat solids and Density values. Physicochemical analysis of rumen fluid showed similarity (P>0.05) in pH, PRAM and sedimentation/flotation values. The subjective variables of rumen liquid showed similar results (P>0.05). It was possible to verify a slightly viscous consistency, olive green coloration and characteristic odor. There was no significant difference for the size and motility of live infusoria. No significant effect (P>0.05) was found for RBCs, WBCs, globular volume and total proteins. Erva-cidreira influenced the CMS, CNT, CPB, CA, EF and PL. In view of this, up to 90 grams of Erva-cidreira s inclusion is recommended in the diet of dairy goats.