Effects of supplementation with <i>Saccharomyces cerevisiae</i> and aerobic training on physical performance of Mangalarga Marchador mares

The objective of this study was to assess the effects of supplementation with Saccharomyces cerevisiae on the performance of Mangalarga Marchador equines and to verify the effectiveness of the aerobic training protocol adopted. The study used 14 Mangalarga Marchador mares in a completely randomized split-plot design. The plots were made up of two treatments (groups Probiotic and Control) and the split plots comprised two maximal-effort physical tests applied both before and after the six weeks of training. The animals’ spirometric parameters, heart rate, and plasma lactate levels were assessed. No difference was found between the Probiotic and Control groups in any of the parameters assessed. A difference was found in the physical tests for time-to-fatigue, aerobic and anaerobic thresholds, speed at which plasma lactate levels reached 2 and 4 mmol/L, speed at which the heart rate reached 200 bpm, and the lactate level at 30 min of the recovery period. Supplementation with Saccharomyces cerevisiae has no effect on physical conditioning of Mangalarga Marchador mares and the aerobic training protocol adopted increases the animals’ aerobic and anaerobic capacity.Instituto de Genética Veterinari

Effects of supplementation with Saccharomyces cerevisiae and aerobic training on physical performance of Mangalarga Marchador mares

The objective of this study was to assess the effects of supplementation with Saccharomyces cerevisiae on the performance of Mangalarga Marchador equines and to verify the effectiveness of the aerobic training protocol adopted. The study used 14 Mangalarga Marchador mares in a completely randomized split-plot design. The plots were made up of two treatments (groups Probiotic and Control) and the split plots comprised two maximal-effort physical tests applied both before and after the six weeks of training. The animals’ spirometric parameters, heart rate, and plasma lactate levels were assessed. No difference was found between the Probiotic and Control groups in any of the parameters assessed. A difference was found in the physical tests for time-to-fatigue, aerobic and anaerobic thresholds, speed at which plasma lactate levels reached 2 and 4 mmol/L, speed at which the heart rate reached 200 bpm, and the lactate level at 30 min of the recovery period. Supplementation with Saccharomyces cerevisiae has no effect on physical conditioning of Mangalarga Marchador mares and the aerobic training protocol adopted increases the animals’ aerobic and anaerobic capacity.Fil: Garcia, Tiago Resende. Universidade Federal do Minas Gerais; BrasilFil: Rezende, Adalgiza Souza Carneiro de. Universidade Federal do Minas Gerais; BrasilFil: Trigo, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Córdoba; EspañaFil: Santiago, Juliano Martins. Universidade Federal Rural Pernambuco; BrasilFil: Almeida, Fernando Queiroz de. Universidade Federal Rural do Rio de Janeiro; BrasilFil: Terra, Rosângela Antunes. Universidade Federal do Minas Gerais; BrasilFil: Fonseca, Mayara Gonçalves. Universidade Federal do Minas Gerais; BrasilFil: Castejón, Francisco. Universidad de Córdoba; Españ

Digestibility and nutrient intake in Mangalarga Marchador mares supplemented with Saccharomyces cerevisiae during aerobic training

O trabalho avaliou o efeito da suplementação com leveduras sobre a digestibilidade e consumo dos nutrientes de equinos Mangalarga Marchador submetidas a treinamento. Quatorze éguas Mangalarga Marchador foram distribuídos em dois grupos: Probiótico (equinos suplementados com 20 g de Saccharomyces cerevisiae diariamente) e Controle. A dieta foi composta por volumoso e concentrado comercial, na proporção de 50:50. As éguas foram treinadas durante seis semanas, de segunda a sábado, sendo o exercício realizado diariamente alternando o trabalho em esteira ergométrica e caminhador automático. A digestibilidade dos nutrientes foi avaliada utilizando o indicador LIPE® (6 dias) e a coleta de fezes foi realizada durante cinco dias. Foi analisado MS, FDN, FDA, PB, EB, hemicelulose e consumo de matéria seca. Não houve diferença (P>0,05) em nenhuma das variáveis analisadas. A suplementação com 20 g de Saccharomyces cerevisiae não interfere na digestibilidade e consumo dos nutrientes em éguas Mangalarga Marchador submetidas a seis semanas de treinamento aeróbico.The study evaluated the effect of yeast supplementation on the digestibility and intake of nutrients of Mangalarga Marchador horses in training. Fourteen Mangalarga Marchador mares were divided into two groups: Probiotic (horses supplemented with 20 g of Saccharomyces cerevisiae daily) and Control. The diet consisted of commercial concentrate and roughage in the ratio of 50:50. The mares were trained for six weeks, Monday to Saturday, and the exercise performed daily alternating work on a treadmill and automatic walker. Nutrient digestibility was assessed using the indicator LIPE® (6 days) end fecal collection was performed for five days. Was analyzed DM, NDF, ADF, CP, GE, hemicelluloses and dry matter intake. There was not difference (P>0,05) in any of the variables analyzed. Supplementation with 20 g of Saccharomyces cerevisiae does not affect the digestibility and nutrient intake in mares Mangalarga Marchador submitted six weeks of aerobic training