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Digestive responses in eventing horses fed a complete extruded diet
Marín Ada Morgana Soares, Marín...
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Introduction: The complete extruded diet is a concentrated food that in its composition has the minimum amount of roughage for equine consumption, therefore, it is supplied as a single food.
Objectives: The study was carried out to evaluate the intake and digestion of nutrients from the complete extruded diet, as well as body weight (BW), body fat percentage (%BF) in eventing horses.
Material And Methods: Thirteen Brazilian Sport horses were used in a completely randomized design, with three diets: First diet (control) - pelleted feed and coastcross hay (n = 5). Second diet - complete extruded diet (Foragge Horse Energy - NUTRATTA®) (n = 4). Third diet - complete extruded diet added with coastcross hay, supplied through a slow feeder hay bag (EQUILIBRE®) (n = 4). The eventing horses were performed daily training activity for nine months. Body weight and body fat percentage were evaluated throughout the three phases of training cycle, initial, intermediate and final. Voluntary intake of dry matter only from concentrates and, intake rate of diets was evaluated. Digestibility coefficients were estimated. The results were subjected to analysis of variance using SAS® using PROC MIXED with 5% significance.
Results: There was no difference between the diets for BW and BF%, which remained stable during training. The concentrate intake rate was lower in the complete extruded diet with a value of 19.8 g DM/Minute than the Control and complete extruded + hay in a slow feeder bag, with average values of 59.3 g and 48.9 g DM /Minute, respectively. Digestibility coefficients was higher for all nutrients evaluated in horses fed complete extruded feed compared to those fed Control diet.
Discussion/Conclusions: The complete extruded diet presented higher digestibility coefficients values compared to other diets, except for cellulose digestibility, and maintained good body conditions in eventing horses during training
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Affiliation of the authors at the time of publication
Federal Rural University of Rio de Janeiro, Animal Science Program, Rio de Janeiro, Brasil
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