Effect of feeding exercised horses on high‐starch or high‐fat diets for 390 days

Zeyner, Annette; Bessert, J.; Gropp, Jürgen

doi:10.1111/j.2042-3306.2002.tb05391.x

Cited by 21 publications

(16 citation statements)

References 18 publications

(23 reference statements)

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“…Unlike that observed in the present study, Zeyner et al (2002) observed that in horses fed diet with 11.5% soybean oil included for 390 days, there was an increase in total solids and cholesterol concentration, with average values of 6.9 and 7.1 g/dL and 90.5 and 106.3 mg/dL, respectively, and a meaningful reduction in the urea nitrogen blood concentration in horses fed diet with soybean oil included, with average values of 35.8 and 32.1 mg/dL, respectively, without alteration in the triglyceride concentrations, with an average value of 24.4 mg/dL.…”

Section: Resultscontrasting

confidence: 57%

“…Also Godoi et al (2009a) did not observe gastrointestinal disorders or alterations in the feces in horses fed diets with the addition of 19.5% soybean oil; and Zeyner et al (2002) did not observe any bad effects in horses fed diet with the addition of 11.5% soybean oil.…”

Section: Resultsmentioning

confidence: 92%

“…However, Zeyner et al (2002) observed meaningful increase in glucose concentration in equines fed with soybean oil included in diet, at rest, when compared to animals fed diet without oil, with average values of 95.1 and 88.8 mg/dL, respectively, after 390 days of diet intake. Mattos et al (2006) observed that glucose concentrations did not differ meaningfully before exercise among equines consuming diets with 0; 3.1 and 6.8% soybean oil included, for 3 days, but observed meaningfully difference at the end of physical effort, with higher values in equines consuming hyperlipidemic diets.…”

Section: Resultsmentioning

confidence: 99%

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Performance of eventing horses fed high fat diet

et al. 2010

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-The objective of this study was to the evaluate physiological, hematological and biochemical parameters of eventing horses fed diets containing soybean oil and submitted to physical effort tests. Twelve horses were used in a completely randomized design with two diets and six replications. The diets used were: diet without soybean oil inclusion (control) and diet with inclusion of 10% soybean oil. The experiment lasted 82 days, with three exercise tests: at the beginning, 60 th and 82 th day of the experiment. There were five data collections for each test: before the test with the horses at rest, immediately after the test, and at 10, 20 and 120 minutes after each test. Body temperature and rate heart were taken and blood samples were collected to evaluate hematological and biochemical variables. The mean values of the physiological, metalogical and biochemical parameters were submitted to non-parametric analysis. The inclusion of soybean oil only altered the γ-glutamyltransferase (GGT) and creatinine concentration in function time of intake of the diet. There was effect of trainings time on the horses conditioning that improved with reduction in the lactate concentration while the glucose concentration increased at the last exercise test.Key Words: horses, nutrition, riding, training Desempenho de equinos de concurso completo de equitação alimentados com dieta contendo óleo de soja RESUMO -Objetivou-se avaliar os parâmetros fisiológicos, hematológicos e bioquímicos de equinos de concurso completo de equitação consumindo dieta contendo óleo de soja e submetidos a testes de esforço físico. Foram utilizados 12 equinos em delineamento experimental inteiramente casualizado, com duas dietas e seis repetições. As dietas utilizadas foram: dieta sem inclusão de óleo de soja (controle); dieta com inclusão de 10% de óleo de soja. O ensaio teve duração de 82 dias e incluiu três testes de esforço físico: ao início, no 60 o e no 82 o dia. Em cada teste, foram realizadas cinco coletas de dados: antes do teste com os animais em repouso; imediatamente após o teste; e 10, 20 e 120 minutos após os testes. Foram avaliadas a temperatura corporal e a frequência cardíaca e realizadas coletas de amostras de sangue para análises hematológicas e bioquímicas. Os valores médios dos parâmetros fisiológicos, hematológicos e bioquímicos foram submetidos à análise não-paramétrica. Somente ao longo do tempo de consumo das dietas, a inclusão do óleo de soja somente alterou a concentração de γ-glutamil transferase (GGT) e creatinina. O tempo de treinamento físico tem efeito no condicionamento dos equinos, que melhora com a redução da concentração de lactato, e na concentração de glicose, que aumentou no teste de esforço físico.

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Section: Resultscontrasting

confidence: 57%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

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Performance of eventing horses fed high fat diet

et al. 2010

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“…In contrast to other studies reporting a negative digestibility, in a diet of mixed hay and concentrate, addition of fat in the form of soy oil, up to 15% of dry matter (DM), was reported by Zeyner et al [9] to increase fiber digestibility. Nevertheless, current studies have lacked a pure forage diet in research focused on fat supplementation.…”

Section: Introductionmentioning

confidence: 67%

Effects of feeding fat on nutrient digestion in cannulated ponies fed a forage diet

Williams¹,

Rude²,

Liao³

et al. 2017

Anim Husb Dairy Vet Sci

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Horse diets are often supplemented with dietary fat to increase caloric intake, and although the effects of fat on fiber digestibility have been studied, this research has not included the use of cannulated subjects. A decrease in fiber digestibility due to fat would be detrimental to equine performance, and thus, the current study utilized cannulated ponies as an equine model for any effects on fiber digestibility due to supplemental dietary fat on a forage diet. Five Shetland/hackney pony mares with an ileal and cecal cannula were fed hay, 2 kg/d alfalfa pellets and vegetable oil at 0, 5, 10 or 15% of total diet. Experimental diets were fed twice a day at 0600 and 1600 hours. Ponies were allowed a 14-d diet adjustment period, after which ileal and cecal cannula samples and fecal grab samples were collected at 1, 3 and 5 d post diet adjustment. On day 1, samples were taken at 0, 90, 180, 270 min and 7 and 10 h. Day 3 samples were taken at 30, 120, and 210 min, and 5 and 8 h. On d 5 samples were taken at 60, 150, and 240 min and 6 and 9 h post feeding. Samples were analyzed for crude protein, fat, acid-detergent fiber, acid-detergent lignin, and apparent digestibility of dry matter, crude protein, fat, and acid-detergent fiber. No effects were found on fiber digestibility due to fat supplementation up to 15% of the total diet in a pony model (P > 0.1). Results indicated that equine diets could be supplemented with up to 15% of fat in the form of vegetable oil to increase digestible energy with no negative impact on fiber digestibility.

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“…As fat was added, decreasing dietary starch, blood glucose and insulin concentrations were also decreased according to Lindberg and Palmgren Karlsson (2001). On the other hand, an unexpected increase in concentrations of glucose was observed by Zeyner, Bessert, and Gropp (2002) from increased fat diets, but the increased glucose was attributed to an increase in the incidence of insulin resistance. Harris, Pagan, Crandell, and Davidson (1999) and Duren et al (1999), however, reported no insulin effect in horses fed diets with additional fat.…”

mentioning

confidence: 98%

Effects of fat supplementation on plasma glucose, insulin and fatty acid analysis in ponies maintained on a forage‐based diet

Williams

Rude

Liao

et al. 2018

Animal Physiology Nutrition

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The objective of this study was to observe how fat incorporated into an equine forage-based diet through supplementation altered levels of plasma glucose, insulin and fatty acids. Five Shetland/Hackney cross pony mares were fed alfalfa pellet diets top dressed with commercially available vegetable oil (blend of soya bean, canola and corn oils) at 0%, 5%, 10% or 15% of diet. Ponies were randomly assigned one of four diets to start, with a 14-day adjustment period between transitioning to another one of the four diets. Ponies were gradually adapted to the new diet within the 14-day period before a five-day trial period. Each pony received all four diets by the end of the study. Each trial was a five-day period with a three-day sample collection. Blood samples for each collection week were taken 0, 30, 60, 90, 120, 150, 180, 210, 240 and 270 min and at 5, 6, 7, 8, 9 and 10 hr post-feeding. Excess fat did not impact plasma glucose (p > .1), nor did it affect blood plasma insulin concentration. While there was no time alteration found for plasma fatty acid concentration (p > .1), C14:0 increased when ponies were fed 0% fat and C18:2 decreased when ponies were fed 0% fat. Plasma fatty acids (% of total FA) were higher in C18:0, C18:1, C18:2 and C20:1 in the added fat diets (p < .1). These findings suggest the amounts reported in this study of fat supplementation on a forage-based diet did influence the fatty acid analysis within the pony, but did not negatively impact blood glucose and insulin concentrations.

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Effect of feeding exercised horses on high‐starch or high‐fat diets for 390 days

Cited by 21 publications

References 18 publications

Performance of eventing horses fed high fat diet

Performance of eventing horses fed high fat diet

Effects of feeding fat on nutrient digestion in cannulated ponies fed a forage diet

Effects of fat supplementation on plasma glucose, insulin and fatty acid analysis in ponies maintained on a forage‐based diet

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