diff --git a/src/main/java/com/josdem/vetlog/controller/AdoptionController.java b/src/main/java/com/josdem/vetlog/controller/AdoptionController.java
index 87c936f7..c6e12d17 100644
--- a/src/main/java/com/josdem/vetlog/controller/AdoptionController.java
+++ b/src/main/java/com/josdem/vetlog/controller/AdoptionController.java
@@ -59,14 +59,14 @@ private void initBinder(WebDataBinder binder) {
 
     @GetMapping(value = "/descriptionForAdoption")
     public ModelAndView descriptionForAdoption(AdoptionCommand adoptionCommand) {
-        log.info("Adding description to pet with uuid: " + adoptionCommand.getUuid());
+        log.info("Adding description to pet with uuid: {}", adoptionCommand.getUuid());
         ModelAndView modelAndView = new ModelAndView();
         return fillPetAndAdoptionCommand(modelAndView, adoptionCommand);
     }
 
     @PostMapping(value = "/save")
     public ModelAndView save(@Valid AdoptionCommand adoptionCommand, BindingResult bindingResult) {
-        log.info("Creating adoption description for pet: " + adoptionCommand.getUuid());
+        log.info("Creating adoption description for pet: {}", adoptionCommand.getUuid());
         if (bindingResult.hasErrors()) {
             ModelAndView modelAndView = new ModelAndView("adoption/descriptionForAdoption");
             fillPetAndAdoptionCommand(modelAndView, adoptionCommand);
diff --git a/src/main/java/com/josdem/vetlog/controller/BreedController.java b/src/main/java/com/josdem/vetlog/controller/BreedController.java
index 4335386e..d67e4b52 100644
--- a/src/main/java/com/josdem/vetlog/controller/BreedController.java
+++ b/src/main/java/com/josdem/vetlog/controller/BreedController.java
@@ -40,7 +40,7 @@ public class BreedController {
     @GetMapping(value = "/list")
     @ResponseBody
     public List<Breed> listByType(@RequestParam String type, HttpServletResponse response) {
-        log.info("Listing Pets by type: " + type);
+        log.info("Listing Pets by type: {}", type);
 
         response.addHeader("Allow-Control-Allow-Methods", "GET");
         response.addHeader("Access-Control-Allow-Origin", "*");
diff --git a/src/main/java/com/josdem/vetlog/controller/PetLogController.java b/src/main/java/com/josdem/vetlog/controller/PetLogController.java
index c92df426..6b9294fe 100644
--- a/src/main/java/com/josdem/vetlog/controller/PetLogController.java
+++ b/src/main/java/com/josdem/vetlog/controller/PetLogController.java
@@ -61,7 +61,7 @@ public class PetLogController {
 
     @GetMapping(value = "/create")
     public ModelAndView create(@RequestParam("uuid") String uuid, HttpServletRequest request) {
-        log.info("Pet uuid: " + uuid);
+        log.info("Pet uuid: {}", uuid);
         ModelAndView modelAndView = new ModelAndView("petlog/create");
         Command petLogCommand = new PetLogCommand();
         modelAndView.addObject(PET_LOG_COMMAND, petLogCommand);
@@ -75,7 +75,7 @@ public ModelAndView create(@RequestParam("uuid") String uuid, HttpServletRequest
     public ModelAndView save(
             @Valid PetLogCommand petLogCommand, BindingResult bindingResult, HttpServletRequest request)
             throws IOException {
-        log.info("Creating petLog: " + petLogCommand.getPet());
+        log.info("Creating petLog: {}", petLogCommand.getPet());
         ModelAndView modelAndView = new ModelAndView("petlog/create");
         Pet pet = petService.getPetById(petLogCommand.getPet());
         User currentUser = userService.getCurrentUser();
diff --git a/src/main/java/com/josdem/vetlog/controller/TelephoneController.java b/src/main/java/com/josdem/vetlog/controller/TelephoneController.java
index 25575c9c..518f1734 100644
--- a/src/main/java/com/josdem/vetlog/controller/TelephoneController.java
+++ b/src/main/java/com/josdem/vetlog/controller/TelephoneController.java
@@ -55,7 +55,7 @@ public class TelephoneController {
     @PostMapping(value = "/save")
     public ModelAndView save(
             @Valid TelephoneCommand telephoneCommand, BindingResult bindingResult, HttpServletRequest request) {
-        log.info("Saving adoption for pet: " + telephoneCommand.getUuid());
+        log.info("Saving adoption for pet: {}", telephoneCommand.getUuid());
         if (bindingResult.hasErrors()) {
             ModelAndView modelAndView = new ModelAndView("telephone/adopt");
             return fillPetAndTelephoneCommand(modelAndView, telephoneCommand);
@@ -69,7 +69,7 @@ public ModelAndView save(
 
     @GetMapping(value = "/adopt")
     public ModelAndView adopt(TelephoneCommand telephoneCommand) {
-        log.info("Adoption to pet with uuid: " + telephoneCommand.getUuid());
+        log.info("Adoption to pet with uuid: {}", telephoneCommand.getUuid());
         ModelAndView modelAndView = new ModelAndView("telephone/adopt");
         return fillPetAndTelephoneCommand(modelAndView, telephoneCommand);
     }