Perfil hematólogico e características das fezes de equinos consumindo dietas hiperlipidêmicas

Abstract

Objetivou-se avaliar os parâmetros sanguíneos, o consumo de matéria seca e as características fecais de equinos alimentados com dietas hiperlipidêmicas. Foram utilizados 15 equinos em delineamento experimental inteiramente casualizado, com três tratamentos e cinco repetições. As dietas utilizadas foram: dieta sem inclusão de óleo de soja (controle); dieta com inclusão de 8,5% de óleo de soja; dieta com inclusão de 19,5% de óleo de soja. O ensaio teve duração de 34 dias, sendo 30 dias de adaptação dos equinos às dietas e quatro dias de coleta de amostras. As amostras sanguíneas para avaliação hematológica e bioquímica foram coletadas no 34° dia, as características das fezes foram avaliadas no 33° e no 34° dia do ensaio e, a partir do 30° dia, o consumo de matéria seca (CMS) foi avaliado. Os equinos alimentados com as dietas hiperlipidêmicas apresentaram aumento no número de eritrócitos e redução no volume corpuscular médio (P<0,05). O nível de hemoglobina dos equinos avaliados diferiu (P<0,05) somente entre os animais que consumiram as dietas de controle e com inclusão de 8,5% de óleo de soja, com menor valor na dieta de controle de 9,5d dL-1. A inclusão de 19,5% de óleo de soja na dieta elevou os níveis séricos de triglicerídios nos equinos. Houve redução no CMS diário de 1,9 e 2,8kg, nos equinos alimentados com as dietas com 8,5 e 19,5% de óleo de soja em relação à dieta de controle de 9,0kg MS. A produção fecal diária reduziu em 0,7 e 1,1kg MS, nos equinos alimentados com as dietas com 8,5 e 19,5% de óleo de soja, respectivamente, em relação à dieta de controle de 3,4kg MS. A utilização de dietas hiperlipidêmicas para equinos com inclusão de óleo de soja possibilita a redução do consumo dietético e o aumento da disponibilidade plasmática de triglicerídeos sem a ocorrência de diarreias ou alteração das características das fezes.

Performance of eventing horses fed high fat diet

“…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.…”

Soybean Oil in Horses’ Diets

“…In these horses the digesta kinetics in the gastrointestinal tract was not affected (P> 0.05), with average values for mean retention time (MRT), rate of passage (RP) and transit time (TT) of the digesta liquid phase of 35.7 hours, 2.8%/ hour and 7.6 hours, respectively ( Table 1). The inclusion of 8.5 and 19.5% of soybean oil in the diets of horses did not influence the daily fecal production based on natural matter, the water content and feces characteristics, with average values of 2.18% of BW and 71.4% moisture (Godoi et al 2009a). Results similar to those observed in healthy horses and with varied diet, with daily fecal production from 1 to 3% of BW on natural matter and 75% moisture (Meyer, 1995).…”

Antioxidant and haematological biomarkers in different groups of horses supplemented with polyunsaturated oil and vitamin E

“…In a study of Mangalarga Marchador foals, supplemented with oilrich concentrate (~20%), a reduction in the quantity of leucocytes was recorded (~14%), but none of the other haematological biomarkers were affected (Melo et al, 2012). Godoi et al (2009) demonstrated that the incorporation of soy oil (10%) did not affect the quantity of leucocytes or neutrophils, although it significantly increased the quantity of lymphocytes. In the present study, there was an increase in the quantity of leucocytes in the maintenance group, but not in the training group.…”

“…In the present study, there were no variations in the RBCc, Hb, HT, LYMPH, MCV, PLAT and TPP in the two groups after 8 weeks of supplementation (p > 0.05). In a study conducted by Godoi et al (2009) with levels of 8.5% and 19.5% oil inclusion, an increase in the RBCc was recorded, suggesting an improvement in the haematological indices of horses that consumed the hyperlipidaemic diet. These results are contrary to those recorded in the present study, in which the mean values of the RBCc, HT and Hb were normal for horses, according to the literature (Kaneko et al, 2008;Perry, 2009).…”

“…Godoi et al. () demonstrated that the incorporation of soy oil (10%) did not affect the quantity of leucocytes or neutrophils, although it significantly increased the quantity of lymphocytes. In the present study, there was an increase in the quantity of leucocytes in the maintenance group, but not in the training group.…”