Alexandre Augusto de Oliveira Gobesso

• Bachelor of Applied Science
• Professor (Associate) at University of São Paulo

Due to the difficulty in acessing certain sites of fermentation and possible starch digestion, studies show the need for equine gastric digestive fisiology evaluation. The aim of this experiment was to assess horses supplemented with live yeast and protected live yeast (Saccharomyces cerevisae NCYC Sc 47) to validate a new procedure of gastric cont...

High amounts of grains in the equine diet led to high starch intake, causing gut alterations. Aimed at reducing harmful effects, Macleaya cordata extract (MCE) is a phytogenic additive that stands out for its antibiotic and anti-inflammatory effects proven in different species. However, there is no useful information for horses. The objective of th...

This study aimed to compare the use of enzymatic colorimetry and Friedewald´s formula for the determination of LDL in horses. A total of 260 samples were used. Direct analysis was performed to determine low-density lipoprotein (LDL), high-density lipoprotein (HDL) cholesterol, triglycerides (TG), and total cholesterol (TC). The LDL level was calcul...

This study evaluated the incidence of gastritis in foals subjected to different weaning management methods. Sixteen crossbreed foals [230±35 kg], were enrolled in an experiment with a randomized block design. After weaning, foals were housed in either individual pens or a group pen. Gastritis in the foals was evaluated through gastroscopy. Data wer...

Alternatives horse's feed are ways to improve nutrient utilization as well as reduce production costs. The objective of this research was to describe behavioral and metabolic changes in ponies fed with complete diets composed of different grasses as fiber sources and industrial processing (thermal). Eight ponies were randomized into two Latin squar...

Different approaches have been used to improve conception rates at foal heat. Omega-3 fatty acids family and derivatives have improved reproductive efficiency in ruminants, but literature lacks studies evaluating these components on equines. The objective of this study was to evaluate effects of mare dietary supplementation with microalgae rich in...

Inflammation of the gastric mucosa, also known as gastritis, are diseases that can commonly affect foals. The hypothesis is that gastritis is present before weaning. Furthermore, foals weaned in paddocks collectively have a lower incidence of clinical gastritis compared with foals weaned individually in stalls. This study aimed to assess the occurr...

High amounts of grains in equine diet lead to an excessive starch intake modifying microbial populations and fermentative products. These changes could compromise the gastrointestinal barrier which has serious consequences for equine health. Therefore, feed additives are receiving great attention to minimize negative effects related to high starch...

Essential oils (EO) such as carvacrol represent a wide range of mainly volatile aromatic plant compounds which hold antioxidant, antibacterial and antifungal potential, in addition to other properties of interest to animal health, such as the ability to modulate the microbiome. Current horse care commonly involves an intensive management system wit...

Minerals perform several functions in the body, such as coagulation actions, muscle contraction, enzymatic and hormonal production, among others. This study aims to evaluate the effect of a 150 days chelated and not chelated mineral supplementation with and without potassium oxalate on serological parameters and bone mineral density of horses. Twen...

Crude glycerin ha a potential for use as a nutritional additive and/or substitute for some feed components. Although proven in some animal species, there are no reports of its use in horses. The aim of this study was to determine the effect of adding different levels of crude glycerin on the digestibility and palatability of nutrients in the equine...

In recent years, several researchers have been studying obesity in national horse breeds; however, no studies demonstrating the dynamic of body and regional fat accumulation (adiposity) Mangalarga Marchador horses subjected to hypercaloric diets have been found. This study aimed to characterize the deposition of body and regional fat in horses with...

The present study aimed to evaluate the effects of omega-3 and 6 fatty acids supplementation to mares during late gestation and early lactation on the transfer of passive immunity in foals. Seventeen mares and their respective foals were included in this study. Supplementation consisted of the addition of oil corresponding to 0.05% of the mares’ bo...

Insulin deregulation (ID) is a central player in the pathophysiology of equine metabolic syndrome (EMS), which is associated with generalized and/or regional obesity. The objective of this experiment was to characterize the alterations in the hormonal profile in horses exposed to a hypercaloric diet. A total of nine Mangalarga Marchador adult horse...

This study evaluated the economic viability of industrial production of complete diets for equine species, using three sources of fiber (dehydrated whole corn plant, dehydrated elephant grass, or Tifton 85 hay) submitted to two types of thermal processing (pelleting or extrusion). A survey and elaboration of costs from the agricultural production o...

O objetivo do trabalho foi investigar as implicações de um tratamento odontológico (odontoplastia) em equinos adultos sobre os parâmetros digestivos, metabólicos e comportamentais. Foram utilizados oito cavalos, machos, castrados, da raça Puro Sangue Árabe, nunca submetidos a tratamento odontológico. A proporção (%/%) concentrado/volumoso foi de 37...

O objetivo foi avaliar os padrões fisiológicos e metabólicos de equinos submetidos ao exercício aeróbio e suplementados com CoQ10. Foram utilizados dez equinos machos, castrados, da raça Puro Sangue Árabe, divididos em grupo controle (GC, sem suplementação) e grupo suplementado (GS). Os cavalos foram submetidos a um programa de exercício aeróbio po...

This paper describes the digestible and fermentative effects of total replacement of a traditional diet (it supplies hay and concentrate separately) for a thermally processed complete feed (it supplies both concentrate and forage) in ponies. Acetate, butyrate, propionate and lactate concentrations in feces, relative population of bacteria in feces,...

The aim was to evaluate the physiological and metabolic patterns of horses submitted to aerobic exercise and supplemented with CoQ 10 . Ten adult Arabian geldings were used, distributed in control group (CG, no supplementation) and a supplemented group (SG). The horses underwent a 90-day aerobic exercise program. The SG received 10 mL of a commerci...

The aim of this study was to evaluate the effect dietary supplementation of live yeast Saccharomyces cervisiae NCYC 996 (SC) on digestibility, fecal microbiota and volatile fatty acids (VFA) and serum endotoxin levels in non-exercising and exercising horses. Ten Arabian geldings were used in a 2 × 2 factorial design [10 horses, 2 treatments (with a...

The aim of this paper was to evaluate the effects of the inclusion of essential oils and live yeasts (Saccharomyces cerevisiae; SC) compound on fecal parameters, apparent digestibility of nutrients and blood parameters of horses. Eight geldings Mini-Horse breed (age 48 ± 6 months and body weight 147 ± 15 kg) were used, randomly distributed in two L...

The objective of this research was to evaluate the electrocardiogram (ECG) of horses used for wagon traction and to compare the results with the parameters obtained from inactive horses or horses submitted to a training routine. Fifty-six 3-15-year-old healthy horses (22 females and 34 males) were divided into three groups: control (without a work...

The present study aimed to evaluate the economic feasibility of production and commercialization project of Hay Enriched Extruded (HEE) as a complete diet for horses. The study was based on survey data and quotation activities involving price from the land preparation (repair, planting and fertilization) to the processing of the product at the fact...

Ricinoleic acid is obtained from castor bean and studies related to its effects on glucose and insulin dynamic are scarce in the literature. Eight male Crioulo breed horses (362 ± 16 of live weight, mean ± SD) were used in a replicated 4 × 4 Latin square design experiment that consisted of 10 days of adaptation and 7 days for data collection. The h...

The objective of this study was to evaluate the coefficients of pre-cecal, ileal digestibility, and glycemic response in cannulated horses fed with different starch sources. Four male horses were used in a 4 × 4 Balanced Latin Square cannulated in the cecum, with 36 months of age and average weight of 350 kg. The horses were fed with hay and the fo...

The aim of this study was to evaluate the performance and blood parameters of Simmental dairy cows, supplemented with 2 g/day of ricinoleic acid (RA) in diet. Forty Simmental dairy cows in mid lactation, individually housed in stable type tiestall, were used. The animals were randomly assigned to two treatments: 0 or 2 g of RA/animal/day. The exper...

A realização do VIII Simpósio de Pós-Graduação e Pesquisa do Departamento de Nutrição e Produção Animal-VNP é uma iniciativa do VNP e do Programa de Pós-Graduação em Nutrição e Produção Animal (PPGNPA). O evento tem como objetivos divulgar e discutir os principais projetos de pesquisa desenvolvidos pelos orientadores e colaboradores do programa, e...

O objetivo deste estudo foi avaliar o desempenho e os parâmetros sanguíneos de vacas leiteiras simental suplementadas com 2 g/dia de ácido ricinoleico (AR) na dieta. Foram usadas 40 vacas leiteiras da raça Simental no meio da lactação, alojados individualmente em tie-stall. Os animais foram divididos aleatoriamente em dois tratamentos: 0 ou 2 g de...

Objetivando estudar a relação do escore de condição corporal (ECC) com medidas de espessura de gordura e músculo em três raças distintas, foram utilizados 31 animais divididos conforme a raça, sendo 14 da raça Puro Sangue Inglês (PSI), oito machos e seis fêmeas, com idade média de 3,5 anos e peso médio de 462,70 kg; sete da raça Quarto de Milha (QM...

Foi avaliado o efeito da inclusão de minerais orgânicos na alimentação de potros sobre a concentração óssea de cálcio e fósforo, densitometria óssea e variáveis de desempenho de desenvolvimento e crescimento corporal. Foram utilizados dez potros com peso de 240,7 ± 30,2 kg e idade de 10 ± 0,15 meses, distribuídos em delineamento inteiramente casual...

This study examined the effect of organic minerals in foals diet evaluating the concentration of bone calcium and phosphorus, bone densitometry and growth and development performance variables. Ten horses weighing 240.7 ± 30.2 kg and 10 ± 0.15 months were used in the study, with two treatments: basal diet with minerals in organic or inorganic forms...

O gama-orizanol é uma substância natural contida no óleo de arroz, que por suas características hipocolesterolêmicas e antioxidantes, têm sido objeto de estudo em humanos e, mais recentemente, em equinos. Foram utilizados seis garanhões, de várias raças, com idade de 10±5,4 anos e peso inicial de 472,67±90,48 kg. Objetivou-se verificar os efeitos d...

In order to assess the effect of corn processing on apparent digestibility of dry matter, organic matter, crude protein, acid detergent fiber, neutral detergent fiber, starch, and glycemic response in horses, four crossbreeding adult mares weighing 450±51.15 kg, and aging 36±5 month , were fitted in a 4x4 Latin square design during 44 days. The ani...

The aim of this study was to determine the effect of replacing starch with dietetic maltodextrin (MD) on apparent digestibility and glycemic and insulinemic response. Four mares aged approximately 30±2 months, and body weigh 385±23 kg were randomly assigned to a 4×4 Latin square experimental design. The experimental diets were composed of 50% conce...

The aim of this study was to evaluate the performance and blood parameters of feedlot Nellore cattle fed increasing doses of ricinoleic acid (RA) in the diet. Ninety-six Nellore steers divided into 12 groups of 8 animals were used. The animals were randomly assigned to four treatments: 0, 1, 2, or 4 g of RA/animal/day, with three replicates per tre...

Currently, the evaluation of training and nutrition for sport horses has been widely studied in order to achieve maximum performance of sport horses in competitions. The body composition of muscle and fat deposition, as well as in humans, is one of the best indicators of performance. The body condition score (BCS) is a subjective indicator of body...

Gamma-oryzanol is a natural substance contained in rice bran oil that has been studied for years in humans due to its hypocholeterolemic and antioxidant properties, and in recent years in horses. Using six stallions from different breeds in a randomized experimental design, weighing 472.67±90.48 kg and aging 10±5.4 years, this study was aimed to ev...

In order to assess the effect of corn processing on apparent digestibility of dry matter, organic matter, crude protein, acid detergent fiber, neutral detergent fiber, starch, and glycemic response in horses, four crossbreeding adult mares weighing 450±51.15 kg, and aging 36±5 month, were fitted in a 4x4 Latin square design during 44 days. The anim...

Recent study of animal species indicates that the acid dietary n-3 fatty acids (FA) supplementation may exert immunomodulatory effects, mainly through changes in the production of inflammatory mediators. The aim of this study was to evaluate whether the supplementation of pregnant mares with sources of omega-3 or omega-6 alter the lymphoproliferati...

With the purpose to evaluate the effect of including dietary sources rich in linoleic acid (soybean oil) or linolenic acid (linseed oil) on the composition of milk, fifteen mares were divided into three groups: control, soybean and linseed. The animals received soybean oil or linseed oil in the proportion of 0.5% of body weight per day, during the...

Fatty acids are one of the most important energy reserves in animals, influencing health and development. However linolenic and linoleic acids are not produced by horse organism. This study was realized to evaluate equine and mule foals' development, nursed by mares supplemented with different sources of omega-3 (linseed oil) and -6 (soy oil) fatty...

The aim of the study was to evaluate the inclusion of ricinoleic acid deriving from castor oil as an additive in equine diet on total apparent digestibility. Eight Criollo adult horses, weighting 362.12±16.15 kg, were distributed in 4 treatments: 0 g of ricinoleic acid per day; 1 g of ricinoleic acid per day; 2 g of ricinoleic acid per day, and 3 g...

In order to evaluate the effect of supplementation of the yeast Saccharomyces cerevisiae (SC) on an apparent digestibility in horses fed with high ratio concentrate: roughage diet (HC), eight Minihorses were used: male geldings, mainly 36-months old, with an initial average weight of 113±12 kg. The diet was composed of 70% concentrate pellets and 3...

The aim of the study was to evaluate the inclusion of ricinoleic acid deriving from castor oil as an additive in equine diet on glycemic and insulinemic response. Eight adult Criollo horses, weighting 362.12±16.15 kg, were randomly allotted to four treatments according to a balanced 4×4 Latin square design: 0 g of ricinoleic acid per day; 1 g of ri...

Foram utilizadas quatro eqüinos fêmeas, adultas, sem raça definida com peso médio de 450 '+ OU -' 51.15kg. As foram compostas de partes iguais de feno da gramínea Tifton 85 (Cynodon sp) e concentrado contendo milho submetido a quatro processamentos diferentes (moído, laminado, floculado, extrusado). O experimento teve duração de 11 dias sendo oito...

Quatro potros machos, sem raça definida, com peso médio de 197,25 Kg, foram utilizados em um delineamento experimental Quadrado Latino 4X4 (quatro animais e quatro períodos), com arranjo fatorial do tipo 2X2, para tratamentos, onde os fatores foram: processamento do feno de alfafa (em cubos X em ramas); com adição ou não de óleo refinado de soja, (...

The effect of the supplementation with rice oil was evaluated on the weight and hematologic profile of equines submitted moderate physical exercise. Fourteen male equines, averaging 411kg, were distributed into treated group (GT; n=7), supplemented daily with rice oil added to the diet (0.5ml/kg/BW); and control group (GC; n=7), treated with soybea...

The accuracy, precision, and robustness of the cutin, acid detergent lignin (ADL), chromic oxide, and total feces collection to estimate the apparent digestibility of the organic matter of diets for equines were evaluated. For such, four male horses were used. They averaged 10 month-old and 197kg (170 to 216kg). The experiment was carried out in fo...

The accuracy, precision, and robustness of the cutin, acid detergent lignin (ADL), chromic oxide, and total feces collection to estimate the apparent digestibility of the organic matter of diets for equines were evaluated. For such, four male horses were used. They averaged 10 month-old and 197kg (170 to 216kg). The experiment was carried out in fo...

Objetivou-se avaliar os efeitos da inclusão de gordura de origem animal ou vegetal e de óleo mineral sobre a aceitabilidade, a digestibilidade dos nutrientes e as concentrações plasmáticas de triglicérides e colesterol em equinos. Utilizaram-se quatro potros de 13 a 16 meses de idade recebendo dieta contendo feno de gramínea e concentrado, em delin...

The objective of this study was to assess the effects of including animals or vegetable fats and mineral on the acceptability, nutrient digestibility and triglyceride plasma concentrations and cholesterol in horses. Four foals aged 13 to 16 months were used receiving diet containing grass hay and concentrate. The experimental design was a Latin Squ...

Em um delineamento quadrado latino 4 X 4 balanceado, foram utilizados quatro potros, filhos do mesmo garanhão, com idade entre 10 e 12 meses e 270 ± 9,80 kg. Foram analisados os efeitos dos níveis de 5, 10, 15 e 20% de óleo de soja no concentrado sobre a aceitabilidade e a digestibilidade dos nutrientes e sobre a concentração plasmática de colester...

Four foals, sired by the same stallion, aged between 10 and 12 months and 270 ± 9.80 kg average weight, were alloted in a 4 X 4 balanced Latin Square design. The effects were analyzed of the inclusion of the levels of 5, 10, 15 and 20% of soybean oil in the concentrate on the acceptability, nutrient digestibilities and on total cholesterol plasma c...

O objetivo deste trabalho foi medir a resposta plasmática de glicose e insulina em cavalos alimentados com dietas contendo concentrados energéticos formulados com diferentes fontes de amido, tais como milho, aveia, sorgo e uma mistura de milho e aveia em partes iguais por peso. Foram utilizados quatro eqüinos com 36 meses de idade em media, mestiço...

O objetivo deste trabalho foi determinar as possíveis diferenças entre períodos diurno e noturno dos coeficientes de digestibilidade parcial pré-cecal da matéria seca, matéria orgânica, amido, proteína bruta, fibra em detergente ácido e fibra em detergente neutro de diferentes dietas formuladas com concentrados energéticos à base de milho, aveia, s...

The effect of alfalfa hay processing (Medicago sativa L.) and the addition of soybean oil in diets on the total dry matter digestibility, organic matter, crude protein, ether extract, neutral detergent fiber and acid detergent in horses was evaluated. Four crossbred male foals with approximately 14 months of age and 197.25 kg were used and assigned...

This study was aimed to measure the plasmatic response of glucose and insulin of horses fed diets containing different starch sources, like corn, oat, sorghum and a mix of corn and oat in equal parts. Four standarbred gelding 36 month old an weighing average of 350 kg were used in a Latin Square 4 x 4 (four animals, four treatments and four period)...

The effects of different quantities and types of dietary fats on the digestibility of feeds for equines are complicated and not fully understood. The present work was undertaken to evaluate the acceptability and digestibility of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), and neutral and acid detergent fibers (NDF,...

The aim of this work was to evaluate, the replacement of ground or extruded corn by sorghum ground or extruded in the concentrate used in diets for equines. Four mares with an average weight of 450 kg and 24 months of age, non-defined breed were distributed to a 4 × 4 Latin square experimental design in a 2 × 2 factorial arrangement (ingredient - c...

Com a utilização de quatro eqüinos, fêmeas, adultas, sem raça definida, com peso médio de 450 Kg em um delineamento experimental quadrado latino 4X4, com arranjo fatorial dos tratamentos e medidas repetidas no tempo, os objetivos deste trabalho foram, avaliar a digestibilidade aparente total da matéria seca, da matéria orgânica, do amido, da proteí...

Introdução: O conhecimento sobre nutrição, fisiologia da digestão e resposta fisiológica a diferentes dietas de eqüídeos tem sido motivo de muitos trabalhos científicos. Hintz, (1983), relatou que o conhecimento da fisiologia da digestão dos eqüinos é essencial para práticas nutricionais consistentes. É importante conhecer a funcionalidade do apare...

El objetivo de este trabajo fue evaluar el efecto de la suplementacion con minerales orgánicos e inorgánicos en potrillos, usando como variable respuesta la densimetría ósea, a través de radiografías, utilizando la cuña de aluminio, mediciones computadas y marcadores para medir el crecimiento del radio. Fueron usados diez potrillos con edad promedi...

Introdução: O conhecimento sobre nutrição, fisiologia da digestão e resposta fisiológica a diferentes dietas de eqüídeos tem sido motivo de muitos trabalhos científicos. Hintz, (1983), relatou que o conhecimento da fisiologia da digestão dos eqüinos é essencial para práticas nutricionais consistentes. É importante conhecer a funcionalidade do apare...

Introdução e Objetivos: A adição de gorduras à dieta de eqüinos tem reconhecido valor como aporte energético e de ácidos graxos essenciais, além de aumentar a aceitabilidade do alimento. Os óleos de milho e de linhaça geralmente são utilizados mas pouca informação há sobre a utilização de outros tipos de óleo vegetal. Os Objetivos foram avaliar o e...

Introdução: Numerosos trabalhos apontam os benefícios de incluir gorduras na formulação de dietas para eqüinos por aumentar a densidade energética da ração, no entanto, os efeitos de diferentes quantidades de gorduras em relação a resposta plasmática lipídica não estão totalmente esclarecidos.Objetivo: Avaliar a resposta plasmática do Triglicérides...