Yeast as a feed additive for training horses Leveduras como aditivo nutricional para cavalos em treinamento

This research analyses the yeast supplementation effect on the digestibility of nutrients and metabolic performance in training horses. Twelve horses were assigned into 2 groups: Pr (20 g of probiotics daily per horse) and control. The diet consisted of roughage (haylage) and commercial rations and all horses were trained for 6 weeks. LIPE® indicator was used during 7 days and feces collected for five days to determine nutrient digestibility. DM, CP, DE, P, NDF, ADF, HCEL and lignin were determined. All horses were subjected to incremental ergospirometry test before and at the end of training. Horses that received live yeast showed an increase (p<0.05) of 4.1% in the digestibility of HCEL. After training, both horse groups presented higher tolerance to fatigue, with an increase in AT and VO2max. The training improved animal performance, hemicellulose digestibility and DE was higher in Pr, but these increases did not improve the performance of these animals.

[1]  A. Agazzi,et al.  Evaluation of the Effects of Live Yeast Supplementation on Apparent Digestibility of High-Fiber Diet in Mature Horses Using the Acid Insoluble Ash Marker Modified Method , 2011 .

[2]  Carlos Eduardo Furtado,et al.  Uso de levedura em equinos alimentados com dietas compostas de fenos de diferentes qualidades nutricionais , 2010 .

[3]  A. S. Rezende,et al.  Feed efficiency in Mangalarga Marchador foals fed diet supplemented with probiotics or phytase , 2009 .

[4]  N. Rodriguez,et al.  Validação do Lipe® como método para determinar a digestibilidade dos nutrientes em eqüinos , 2009 .

[5]  D. Poole,et al.  Chapter 4.1 – Cardiovascular function and oxygen transport: responses to exercise and training , 2008 .

[6]  R. Geor,et al.  Equine exercise physiology : the science of exercise in the athletic horse , 2008 .

[7]  I. Yoon,et al.  Effect of Yeast Culture Supplementation on Digestibility of Varying Forage Quality in Mature Horses , 2007 .

[8]  N. C. Baião,et al.  Uso da LIPE® como indicador externo na determinação da energia metabolizável de alimentos em frangos de corte , 2007 .

[9]  R. Geor,et al.  Equine Sports Medicine and Surgery , 2004 .

[10]  David Evans.  Chapter 3 – Exercise testing in the field , 2004 .

[11]  V. Julliand,et al.  Effect of a preparation of Saccharomyces cerevisiae on microbial profiles and fermentation patterns in the large intestine of horses fed a high fiber or a high starch diet. , 2002, Journal of animal science.

[12]  N. Rodriguez,et al.  Lignina isolada da palha de milho utilizada com indicador em ensaios de digestibilidade: estudo comparativo , 2002 .

[13]  T. Olleros,et al.  Towards a healthier diet for the colon: the influence of fructooligosaccharides and lactobacilli on intestinal health , 2002 .

[14]  R. Rose,et al.  Changes in maximum oxygen uptake during prolonged training, overtraining, and detraining in horses. , 1996, Journal of applied physiology.

[15]  F. Mcintosh,et al.  Mode of action of the yeast Saccharomyces cerevisiae as a feed additive for ruminants , 1996, British Journal of Nutrition.

[16]  K McEntee,et al.  Cardio-respiratory, haematological and biochemical parameter adjustments to exercise: effect of a probiotic in horses during training. , 1994, Veterinary research.

[17]  Hilary M. Clayton,et al.  Conditioning Sport Horses , 1991 .

[18]  P. V. Soest,et al.  Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. , 1991, Journal of dairy science.

[19]  M. Glade,et al.  Effects of dietary yeast culture supplementation during the conditioning period on equine exercise physiology , 1990 .

[20]  S. Lowry,et al.  Influence of yeast culture supplementation on ration digestion by horses , 1990 .

[21]  Reuben J. Rose,et al.  Equine exercise physiology. , 1990 .

[22]  P. Huntington,et al.  Body condition scoring and weight estimation of horses. , 1988, Equine veterinary journal.

[23]  D L Evans,et al.  Cardiovascular and respiratory responses in Thoroughbred horses during treadmill exercise. , 1988, The Journal of experimental biology.

[24]  M. Glade,et al.  Enhanced Nitrogen Retention in Yearling Horses Supplemented with Yeast Culture , 1986 .

[25]  H. Rusko,et al.  Aerobic and Anaerobic Thresholds Determined from Venous Lactate or from Ventilation and Gas Exchange in Relation to Muscle Fiber Composition* , 1986, International journal of sports medicine.